diff --git a/library/rsa.c b/library/rsa.c
index 9c39fa5..f44b2c3 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -62,68 +62,72 @@
 #if !defined(MBEDTLS_RSA_ALT)
 
 /* Parameter validation macros */
-#define RSA_VALIDATE_RET( cond )                                       \
-    MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_RSA_BAD_INPUT_DATA )
-#define RSA_VALIDATE( cond )                                           \
-    MBEDTLS_INTERNAL_VALIDATE( cond )
+#define RSA_VALIDATE_RET(cond)                                       \
+    MBEDTLS_INTERNAL_VALIDATE_RET(cond, MBEDTLS_ERR_RSA_BAD_INPUT_DATA)
+#define RSA_VALIDATE(cond)                                           \
+    MBEDTLS_INTERNAL_VALIDATE(cond)
 
-int mbedtls_rsa_import( mbedtls_rsa_context *ctx,
-                        const mbedtls_mpi *N,
-                        const mbedtls_mpi *P, const mbedtls_mpi *Q,
-                        const mbedtls_mpi *D, const mbedtls_mpi *E )
+int mbedtls_rsa_import(mbedtls_rsa_context *ctx,
+                       const mbedtls_mpi *N,
+                       const mbedtls_mpi *P, const mbedtls_mpi *Q,
+                       const mbedtls_mpi *D, const mbedtls_mpi *E)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
-    if( ( N != NULL && ( ret = mbedtls_mpi_copy( &ctx->N, N ) ) != 0 ) ||
-        ( P != NULL && ( ret = mbedtls_mpi_copy( &ctx->P, P ) ) != 0 ) ||
-        ( Q != NULL && ( ret = mbedtls_mpi_copy( &ctx->Q, Q ) ) != 0 ) ||
-        ( D != NULL && ( ret = mbedtls_mpi_copy( &ctx->D, D ) ) != 0 ) ||
-        ( E != NULL && ( ret = mbedtls_mpi_copy( &ctx->E, E ) ) != 0 ) )
-    {
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if ((N != NULL && (ret = mbedtls_mpi_copy(&ctx->N, N)) != 0) ||
+        (P != NULL && (ret = mbedtls_mpi_copy(&ctx->P, P)) != 0) ||
+        (Q != NULL && (ret = mbedtls_mpi_copy(&ctx->Q, Q)) != 0) ||
+        (D != NULL && (ret = mbedtls_mpi_copy(&ctx->D, D)) != 0) ||
+        (E != NULL && (ret = mbedtls_mpi_copy(&ctx->E, E)) != 0)) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
     }
 
-    if( N != NULL )
-        ctx->len = mbedtls_mpi_size( &ctx->N );
+    if (N != NULL) {
+        ctx->len = mbedtls_mpi_size(&ctx->N);
+    }
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_rsa_import_raw( mbedtls_rsa_context *ctx,
-                            unsigned char const *N, size_t N_len,
-                            unsigned char const *P, size_t P_len,
-                            unsigned char const *Q, size_t Q_len,
-                            unsigned char const *D, size_t D_len,
-                            unsigned char const *E, size_t E_len )
+int mbedtls_rsa_import_raw(mbedtls_rsa_context *ctx,
+                           unsigned char const *N, size_t N_len,
+                           unsigned char const *P, size_t P_len,
+                           unsigned char const *Q, size_t Q_len,
+                           unsigned char const *D, size_t D_len,
+                           unsigned char const *E, size_t E_len)
 {
     int ret = 0;
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
-    if( N != NULL )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->N, N, N_len ) );
-        ctx->len = mbedtls_mpi_size( &ctx->N );
+    if (N != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&ctx->N, N, N_len));
+        ctx->len = mbedtls_mpi_size(&ctx->N);
     }
 
-    if( P != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->P, P, P_len ) );
+    if (P != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&ctx->P, P, P_len));
+    }
 
-    if( Q != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->Q, Q, Q_len ) );
+    if (Q != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&ctx->Q, Q, Q_len));
+    }
 
-    if( D != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->D, D, D_len ) );
+    if (D != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&ctx->D, D, D_len));
+    }
 
-    if( E != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->E, E, E_len ) );
+    if (E != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&ctx->E, E, E_len));
+    }
 
 cleanup:
 
-    if( ret != 0 )
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if (ret != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -131,8 +135,8 @@
  * that the RSA primitives will be able to execute without error.
  * It does *not* make guarantees for consistency of the parameters.
  */
-static int rsa_check_context( mbedtls_rsa_context const *ctx, int is_priv,
-                              int blinding_needed )
+static int rsa_check_context(mbedtls_rsa_context const *ctx, int is_priv,
+                             int blinding_needed)
 {
 #if !defined(MBEDTLS_RSA_NO_CRT)
     /* blinding_needed is only used for NO_CRT to decide whether
@@ -140,10 +144,9 @@
     ((void) blinding_needed);
 #endif
 
-    if( ctx->len != mbedtls_mpi_size( &ctx->N ) ||
-        ctx->len > MBEDTLS_MPI_MAX_SIZE )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ctx->len != mbedtls_mpi_size(&ctx->N) ||
+        ctx->len > MBEDTLS_MPI_MAX_SIZE) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 
     /*
@@ -152,23 +155,21 @@
 
     /* Modular exponentiation wrt. N is always used for
      * RSA public key operations. */
-    if( mbedtls_mpi_cmp_int( &ctx->N, 0 ) <= 0 ||
-        mbedtls_mpi_get_bit( &ctx->N, 0 ) == 0  )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mbedtls_mpi_cmp_int(&ctx->N, 0) <= 0 ||
+        mbedtls_mpi_get_bit(&ctx->N, 0) == 0) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
     /* Modular exponentiation for P and Q is only
      * used for private key operations and if CRT
      * is used. */
-    if( is_priv &&
-        ( mbedtls_mpi_cmp_int( &ctx->P, 0 ) <= 0 ||
-          mbedtls_mpi_get_bit( &ctx->P, 0 ) == 0 ||
-          mbedtls_mpi_cmp_int( &ctx->Q, 0 ) <= 0 ||
-          mbedtls_mpi_get_bit( &ctx->Q, 0 ) == 0  ) )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (is_priv &&
+        (mbedtls_mpi_cmp_int(&ctx->P, 0) <= 0 ||
+         mbedtls_mpi_get_bit(&ctx->P, 0) == 0 ||
+         mbedtls_mpi_cmp_int(&ctx->Q, 0) <= 0 ||
+         mbedtls_mpi_get_bit(&ctx->Q, 0) == 0)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 #endif /* !MBEDTLS_RSA_NO_CRT */
 
@@ -177,20 +178,21 @@
      */
 
     /* Always need E for public key operations */
-    if( mbedtls_mpi_cmp_int( &ctx->E, 0 ) <= 0 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mbedtls_mpi_cmp_int(&ctx->E, 0) <= 0) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_RSA_NO_CRT)
     /* For private key operations, use D or DP & DQ
      * as (unblinded) exponents. */
-    if( is_priv && mbedtls_mpi_cmp_int( &ctx->D, 0 ) <= 0 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (is_priv && mbedtls_mpi_cmp_int(&ctx->D, 0) <= 0) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 #else
-    if( is_priv &&
-        ( mbedtls_mpi_cmp_int( &ctx->DP, 0 ) <= 0 ||
-          mbedtls_mpi_cmp_int( &ctx->DQ, 0 ) <= 0  ) )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (is_priv &&
+        (mbedtls_mpi_cmp_int(&ctx->DP, 0) <= 0 ||
+         mbedtls_mpi_cmp_int(&ctx->DQ, 0) <= 0)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 #endif /* MBEDTLS_RSA_NO_CRT */
 
@@ -198,28 +200,26 @@
      * so check that P, Q >= 1 if that hasn't yet been
      * done as part of 1. */
 #if defined(MBEDTLS_RSA_NO_CRT)
-    if( is_priv && blinding_needed &&
-        ( mbedtls_mpi_cmp_int( &ctx->P, 0 ) <= 0 ||
-          mbedtls_mpi_cmp_int( &ctx->Q, 0 ) <= 0 ) )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (is_priv && blinding_needed &&
+        (mbedtls_mpi_cmp_int(&ctx->P, 0) <= 0 ||
+         mbedtls_mpi_cmp_int(&ctx->Q, 0) <= 0)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 #endif
 
     /* It wouldn't lead to an error if it wasn't satisfied,
      * but check for QP >= 1 nonetheless. */
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    if( is_priv &&
-        mbedtls_mpi_cmp_int( &ctx->QP, 0 ) <= 0 )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (is_priv &&
+        mbedtls_mpi_cmp_int(&ctx->QP, 0) <= 0) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 #endif
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_rsa_complete( mbedtls_rsa_context *ctx )
+int mbedtls_rsa_complete(mbedtls_rsa_context *ctx)
 {
     int ret = 0;
     int have_N, have_P, have_Q, have_D, have_E;
@@ -228,18 +228,18 @@
 #endif
     int n_missing, pq_missing, d_missing, is_pub, is_priv;
 
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
-    have_N = ( mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 );
-    have_P = ( mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 );
-    have_Q = ( mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 );
-    have_D = ( mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 );
-    have_E = ( mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0 );
+    have_N = (mbedtls_mpi_cmp_int(&ctx->N, 0) != 0);
+    have_P = (mbedtls_mpi_cmp_int(&ctx->P, 0) != 0);
+    have_Q = (mbedtls_mpi_cmp_int(&ctx->Q, 0) != 0);
+    have_D = (mbedtls_mpi_cmp_int(&ctx->D, 0) != 0);
+    have_E = (mbedtls_mpi_cmp_int(&ctx->E, 0) != 0);
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    have_DP = ( mbedtls_mpi_cmp_int( &ctx->DP, 0 ) != 0 );
-    have_DQ = ( mbedtls_mpi_cmp_int( &ctx->DQ, 0 ) != 0 );
-    have_QP = ( mbedtls_mpi_cmp_int( &ctx->QP, 0 ) != 0 );
+    have_DP = (mbedtls_mpi_cmp_int(&ctx->DP, 0) != 0);
+    have_DQ = (mbedtls_mpi_cmp_int(&ctx->DQ, 0) != 0);
+    have_QP = (mbedtls_mpi_cmp_int(&ctx->QP, 0) != 0);
 #endif
 
     /*
@@ -260,44 +260,40 @@
     /* These three alternatives are mutually exclusive */
     is_priv = n_missing || pq_missing || d_missing;
 
-    if( !is_priv && !is_pub )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (!is_priv && !is_pub) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     /*
      * Step 1: Deduce N if P, Q are provided.
      */
 
-    if( !have_N && have_P && have_Q )
-    {
-        if( ( ret = mbedtls_mpi_mul_mpi( &ctx->N, &ctx->P,
-                                         &ctx->Q ) ) != 0 )
-        {
-            return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if (!have_N && have_P && have_Q) {
+        if ((ret = mbedtls_mpi_mul_mpi(&ctx->N, &ctx->P,
+                                       &ctx->Q)) != 0) {
+            return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
         }
 
-        ctx->len = mbedtls_mpi_size( &ctx->N );
+        ctx->len = mbedtls_mpi_size(&ctx->N);
     }
 
     /*
      * Step 2: Deduce and verify all remaining core parameters.
      */
 
-    if( pq_missing )
-    {
-        ret = mbedtls_rsa_deduce_primes( &ctx->N, &ctx->E, &ctx->D,
-                                         &ctx->P, &ctx->Q );
-        if( ret != 0 )
-            return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if (pq_missing) {
+        ret = mbedtls_rsa_deduce_primes(&ctx->N, &ctx->E, &ctx->D,
+                                        &ctx->P, &ctx->Q);
+        if (ret != 0) {
+            return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
+        }
 
-    }
-    else if( d_missing )
-    {
-        if( ( ret = mbedtls_rsa_deduce_private_exponent( &ctx->P,
-                                                         &ctx->Q,
-                                                         &ctx->E,
-                                                         &ctx->D ) ) != 0 )
-        {
-            return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    } else if (d_missing) {
+        if ((ret = mbedtls_rsa_deduce_private_exponent(&ctx->P,
+                                                       &ctx->Q,
+                                                       &ctx->E,
+                                                       &ctx->D)) != 0) {
+            return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
         }
     }
 
@@ -307,12 +303,12 @@
      */
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    if( is_priv && ! ( have_DP && have_DQ && have_QP ) )
-    {
-        ret = mbedtls_rsa_deduce_crt( &ctx->P,  &ctx->Q,  &ctx->D,
-                                      &ctx->DP, &ctx->DQ, &ctx->QP );
-        if( ret != 0 )
-            return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if (is_priv && !(have_DP && have_DQ && have_QP)) {
+        ret = mbedtls_rsa_deduce_crt(&ctx->P,  &ctx->Q,  &ctx->D,
+                                     &ctx->DP, &ctx->DQ, &ctx->QP);
+        if (ret != 0) {
+            return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
+        }
     }
 #endif /* MBEDTLS_RSA_NO_CRT */
 
@@ -320,94 +316,98 @@
      * Step 3: Basic sanity checks
      */
 
-    return( rsa_check_context( ctx, is_priv, 1 ) );
+    return rsa_check_context(ctx, is_priv, 1);
 }
 
-int mbedtls_rsa_export_raw( const mbedtls_rsa_context *ctx,
-                            unsigned char *N, size_t N_len,
-                            unsigned char *P, size_t P_len,
-                            unsigned char *Q, size_t Q_len,
-                            unsigned char *D, size_t D_len,
-                            unsigned char *E, size_t E_len )
+int mbedtls_rsa_export_raw(const mbedtls_rsa_context *ctx,
+                           unsigned char *N, size_t N_len,
+                           unsigned char *P, size_t P_len,
+                           unsigned char *Q, size_t Q_len,
+                           unsigned char *D, size_t D_len,
+                           unsigned char *E, size_t E_len)
 {
     int ret = 0;
     int is_priv;
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
     /* Check if key is private or public */
     is_priv =
-        mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0;
+        mbedtls_mpi_cmp_int(&ctx->N, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->P, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->Q, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->D, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->E, 0) != 0;
 
-    if( !is_priv )
-    {
+    if (!is_priv) {
         /* If we're trying to export private parameters for a public key,
          * something must be wrong. */
-        if( P != NULL || Q != NULL || D != NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+        if (P != NULL || Q != NULL || D != NULL) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
     }
 
-    if( N != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->N, N, N_len ) );
+    if (N != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&ctx->N, N, N_len));
+    }
 
-    if( P != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->P, P, P_len ) );
+    if (P != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&ctx->P, P, P_len));
+    }
 
-    if( Q != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->Q, Q, Q_len ) );
+    if (Q != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&ctx->Q, Q, Q_len));
+    }
 
-    if( D != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->D, D, D_len ) );
+    if (D != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&ctx->D, D, D_len));
+    }
 
-    if( E != NULL )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->E, E, E_len ) );
+    if (E != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&ctx->E, E, E_len));
+    }
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
-int mbedtls_rsa_export( const mbedtls_rsa_context *ctx,
-                        mbedtls_mpi *N, mbedtls_mpi *P, mbedtls_mpi *Q,
-                        mbedtls_mpi *D, mbedtls_mpi *E )
+int mbedtls_rsa_export(const mbedtls_rsa_context *ctx,
+                       mbedtls_mpi *N, mbedtls_mpi *P, mbedtls_mpi *Q,
+                       mbedtls_mpi *D, mbedtls_mpi *E)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int is_priv;
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
     /* Check if key is private or public */
     is_priv =
-        mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0;
+        mbedtls_mpi_cmp_int(&ctx->N, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->P, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->Q, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->D, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->E, 0) != 0;
 
-    if( !is_priv )
-    {
+    if (!is_priv) {
         /* If we're trying to export private parameters for a public key,
          * something must be wrong. */
-        if( P != NULL || Q != NULL || D != NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+        if (P != NULL || Q != NULL || D != NULL) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
     }
 
     /* Export all requested core parameters. */
 
-    if( ( N != NULL && ( ret = mbedtls_mpi_copy( N, &ctx->N ) ) != 0 ) ||
-        ( P != NULL && ( ret = mbedtls_mpi_copy( P, &ctx->P ) ) != 0 ) ||
-        ( Q != NULL && ( ret = mbedtls_mpi_copy( Q, &ctx->Q ) ) != 0 ) ||
-        ( D != NULL && ( ret = mbedtls_mpi_copy( D, &ctx->D ) ) != 0 ) ||
-        ( E != NULL && ( ret = mbedtls_mpi_copy( E, &ctx->E ) ) != 0 ) )
-    {
-        return( ret );
+    if ((N != NULL && (ret = mbedtls_mpi_copy(N, &ctx->N)) != 0) ||
+        (P != NULL && (ret = mbedtls_mpi_copy(P, &ctx->P)) != 0) ||
+        (Q != NULL && (ret = mbedtls_mpi_copy(Q, &ctx->Q)) != 0) ||
+        (D != NULL && (ret = mbedtls_mpi_copy(D, &ctx->D)) != 0) ||
+        (E != NULL && (ret = mbedtls_mpi_copy(E, &ctx->E)) != 0)) {
+        return ret;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -416,75 +416,74 @@
  * write DER encoded RSA keys. The helper function mbedtls_rsa_deduce_crt
  * can be used in this case.
  */
-int mbedtls_rsa_export_crt( const mbedtls_rsa_context *ctx,
-                            mbedtls_mpi *DP, mbedtls_mpi *DQ, mbedtls_mpi *QP )
+int mbedtls_rsa_export_crt(const mbedtls_rsa_context *ctx,
+                           mbedtls_mpi *DP, mbedtls_mpi *DQ, mbedtls_mpi *QP)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int is_priv;
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
     /* Check if key is private or public */
     is_priv =
-        mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 &&
-        mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0;
+        mbedtls_mpi_cmp_int(&ctx->N, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->P, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->Q, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->D, 0) != 0 &&
+        mbedtls_mpi_cmp_int(&ctx->E, 0) != 0;
 
-    if( !is_priv )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (!is_priv) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
     /* Export all requested blinding parameters. */
-    if( ( DP != NULL && ( ret = mbedtls_mpi_copy( DP, &ctx->DP ) ) != 0 ) ||
-        ( DQ != NULL && ( ret = mbedtls_mpi_copy( DQ, &ctx->DQ ) ) != 0 ) ||
-        ( QP != NULL && ( ret = mbedtls_mpi_copy( QP, &ctx->QP ) ) != 0 ) )
-    {
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if ((DP != NULL && (ret = mbedtls_mpi_copy(DP, &ctx->DP)) != 0) ||
+        (DQ != NULL && (ret = mbedtls_mpi_copy(DQ, &ctx->DQ)) != 0) ||
+        (QP != NULL && (ret = mbedtls_mpi_copy(QP, &ctx->QP)) != 0)) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
     }
 #else
-    if( ( ret = mbedtls_rsa_deduce_crt( &ctx->P, &ctx->Q, &ctx->D,
-                                        DP, DQ, QP ) ) != 0 )
-    {
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret ) );
+    if ((ret = mbedtls_rsa_deduce_crt(&ctx->P, &ctx->Q, &ctx->D,
+                                      DP, DQ, QP)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_BAD_INPUT_DATA, ret);
     }
 #endif
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Initialize an RSA context
  */
-void mbedtls_rsa_init( mbedtls_rsa_context *ctx,
-               int padding,
-               int hash_id )
+void mbedtls_rsa_init(mbedtls_rsa_context *ctx,
+                      int padding,
+                      int hash_id)
 {
-    RSA_VALIDATE( ctx != NULL );
-    RSA_VALIDATE( padding == MBEDTLS_RSA_PKCS_V15 ||
-                  padding == MBEDTLS_RSA_PKCS_V21 );
+    RSA_VALIDATE(ctx != NULL);
+    RSA_VALIDATE(padding == MBEDTLS_RSA_PKCS_V15 ||
+                 padding == MBEDTLS_RSA_PKCS_V21);
 
-    memset( ctx, 0, sizeof( mbedtls_rsa_context ) );
+    memset(ctx, 0, sizeof(mbedtls_rsa_context));
 
-    mbedtls_rsa_set_padding( ctx, padding, hash_id );
+    mbedtls_rsa_set_padding(ctx, padding, hash_id);
 
 #if defined(MBEDTLS_THREADING_C)
     /* Set ctx->ver to nonzero to indicate that the mutex has been
      * initialized and will need to be freed. */
     ctx->ver = 1;
-    mbedtls_mutex_init( &ctx->mutex );
+    mbedtls_mutex_init(&ctx->mutex);
 #endif
 }
 
 /*
  * Set padding for an existing RSA context
  */
-void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding,
-                              int hash_id )
+void mbedtls_rsa_set_padding(mbedtls_rsa_context *ctx, int padding,
+                             int hash_id)
 {
-    RSA_VALIDATE( ctx != NULL );
-    RSA_VALIDATE( padding == MBEDTLS_RSA_PKCS_V15 ||
-                  padding == MBEDTLS_RSA_PKCS_V21 );
+    RSA_VALIDATE(ctx != NULL);
+    RSA_VALIDATE(padding == MBEDTLS_RSA_PKCS_V15 ||
+                 padding == MBEDTLS_RSA_PKCS_V21);
 
     ctx->padding = padding;
     ctx->hash_id = hash_id;
@@ -494,9 +493,9 @@
  * Get length in bytes of RSA modulus
  */
 
-size_t mbedtls_rsa_get_len( const mbedtls_rsa_context *ctx )
+size_t mbedtls_rsa_get_len(const mbedtls_rsa_context *ctx)
 {
-    return( ctx->len );
+    return ctx->len;
 }
 
 
@@ -508,31 +507,31 @@
  * This generation method follows the RSA key pair generation procedure of
  * FIPS 186-4 if 2^16 < exponent < 2^256 and nbits = 2048 or nbits = 3072.
  */
-int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx,
-                 int (*f_rng)(void *, unsigned char *, size_t),
-                 void *p_rng,
-                 unsigned int nbits, int exponent )
+int mbedtls_rsa_gen_key(mbedtls_rsa_context *ctx,
+                        int (*f_rng)(void *, unsigned char *, size_t),
+                        void *p_rng,
+                        unsigned int nbits, int exponent)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_mpi H, G, L;
     int prime_quality = 0;
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( f_rng != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(f_rng != NULL);
 
     /*
      * If the modulus is 1024 bit long or shorter, then the security strength of
      * the RSA algorithm is less than or equal to 80 bits and therefore an error
      * rate of 2^-80 is sufficient.
      */
-    if( nbits > 1024 )
+    if (nbits > 1024) {
         prime_quality = MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR;
+    }
 
-    mbedtls_mpi_init( &H );
-    mbedtls_mpi_init( &G );
-    mbedtls_mpi_init( &L );
+    mbedtls_mpi_init(&H);
+    mbedtls_mpi_init(&G);
+    mbedtls_mpi_init(&L);
 
-    if( nbits < 128 || exponent < 3 || nbits % 2 != 0 )
-    {
+    if (nbits < 128 || exponent < 3 || nbits % 2 != 0) {
         ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
         goto cleanup;
     }
@@ -543,54 +542,56 @@
      * 2.  GCD( E, (P-1)*(Q-1) ) == 1
      * 3.  E^-1 mod LCM(P-1, Q-1) > 2^( nbits / 2 )
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->E, exponent ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&ctx->E, exponent));
 
-    do
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->P, nbits >> 1,
-                                                prime_quality, f_rng, p_rng ) );
+    do {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_gen_prime(&ctx->P, nbits >> 1,
+                                              prime_quality, f_rng, p_rng));
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->Q, nbits >> 1,
-                                                prime_quality, f_rng, p_rng ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_gen_prime(&ctx->Q, nbits >> 1,
+                                              prime_quality, f_rng, p_rng));
 
         /* make sure the difference between p and q is not too small (FIPS 186-4 §B.3.3 step 5.4) */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &H, &ctx->P, &ctx->Q ) );
-        if( mbedtls_mpi_bitlen( &H ) <= ( ( nbits >= 200 ) ? ( ( nbits >> 1 ) - 99 ) : 0 ) )
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&H, &ctx->P, &ctx->Q));
+        if (mbedtls_mpi_bitlen(&H) <= ((nbits >= 200) ? ((nbits >> 1) - 99) : 0)) {
             continue;
+        }
 
         /* not required by any standards, but some users rely on the fact that P > Q */
-        if( H.s < 0 )
-            mbedtls_mpi_swap( &ctx->P, &ctx->Q );
+        if (H.s < 0) {
+            mbedtls_mpi_swap(&ctx->P, &ctx->Q);
+        }
 
         /* Temporarily replace P,Q by P-1, Q-1 */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &ctx->P, &ctx->P, 1 ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &ctx->Q, &ctx->Q, 1 ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &ctx->P, &ctx->Q ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_int(&ctx->P, &ctx->P, 1));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_int(&ctx->Q, &ctx->Q, 1));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&H, &ctx->P, &ctx->Q));
 
         /* check GCD( E, (P-1)*(Q-1) ) == 1 (FIPS 186-4 §B.3.1 criterion 2(a)) */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->E, &H  ) );
-        if( mbedtls_mpi_cmp_int( &G, 1 ) != 0 )
+        MBEDTLS_MPI_CHK(mbedtls_mpi_gcd(&G, &ctx->E, &H));
+        if (mbedtls_mpi_cmp_int(&G, 1) != 0) {
             continue;
+        }
 
         /* compute smallest possible D = E^-1 mod LCM(P-1, Q-1) (FIPS 186-4 §B.3.1 criterion 3(b)) */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->P, &ctx->Q ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &L, NULL, &H, &G ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->D, &ctx->E, &L ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_gcd(&G, &ctx->P, &ctx->Q));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_div_mpi(&L, NULL, &H, &G));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_inv_mod(&ctx->D, &ctx->E, &L));
 
-        if( mbedtls_mpi_bitlen( &ctx->D ) <= ( ( nbits + 1 ) / 2 ) ) // (FIPS 186-4 §B.3.1 criterion 3(a))
+        if (mbedtls_mpi_bitlen(&ctx->D) <= ((nbits + 1) / 2)) {      // (FIPS 186-4 §B.3.1 criterion 3(a))
             continue;
+        }
 
         break;
-    }
-    while( 1 );
+    } while (1);
 
     /* Restore P,Q */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &ctx->P,  &ctx->P, 1 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &ctx->Q,  &ctx->Q, 1 ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(&ctx->P,  &ctx->P, 1));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(&ctx->Q,  &ctx->Q, 1));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->N, &ctx->P, &ctx->Q ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&ctx->N, &ctx->P, &ctx->Q));
 
-    ctx->len = mbedtls_mpi_size( &ctx->N );
+    ctx->len = mbedtls_mpi_size(&ctx->N);
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
     /*
@@ -598,29 +599,29 @@
      * DQ = D mod (Q - 1)
      * QP = Q^-1 mod P
      */
-    MBEDTLS_MPI_CHK( mbedtls_rsa_deduce_crt( &ctx->P, &ctx->Q, &ctx->D,
-                                             &ctx->DP, &ctx->DQ, &ctx->QP ) );
+    MBEDTLS_MPI_CHK(mbedtls_rsa_deduce_crt(&ctx->P, &ctx->Q, &ctx->D,
+                                           &ctx->DP, &ctx->DQ, &ctx->QP));
 #endif /* MBEDTLS_RSA_NO_CRT */
 
     /* Double-check */
-    MBEDTLS_MPI_CHK( mbedtls_rsa_check_privkey( ctx ) );
+    MBEDTLS_MPI_CHK(mbedtls_rsa_check_privkey(ctx));
 
 cleanup:
 
-    mbedtls_mpi_free( &H );
-    mbedtls_mpi_free( &G );
-    mbedtls_mpi_free( &L );
+    mbedtls_mpi_free(&H);
+    mbedtls_mpi_free(&G);
+    mbedtls_mpi_free(&L);
 
-    if( ret != 0 )
-    {
-        mbedtls_rsa_free( ctx );
+    if (ret != 0) {
+        mbedtls_rsa_free(ctx);
 
-        if( ( -ret & ~0x7f ) == 0 )
-            ret = MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_KEY_GEN_FAILED, ret );
-        return( ret );
+        if ((-ret & ~0x7f) == 0) {
+            ret = MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_KEY_GEN_FAILED, ret);
+        }
+        return ret;
     }
 
-    return( 0 );
+    return 0;
 }
 
 #endif /* MBEDTLS_GENPRIME */
@@ -628,130 +629,127 @@
 /*
  * Check a public RSA key
  */
-int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx )
+int mbedtls_rsa_check_pubkey(const mbedtls_rsa_context *ctx)
 {
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
-    if( rsa_check_context( ctx, 0 /* public */, 0 /* no blinding */ ) != 0 )
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
-
-    if( mbedtls_mpi_bitlen( &ctx->N ) < 128 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    if (rsa_check_context(ctx, 0 /* public */, 0 /* no blinding */) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
-    if( mbedtls_mpi_get_bit( &ctx->E, 0 ) == 0 ||
-        mbedtls_mpi_bitlen( &ctx->E )     < 2  ||
-        mbedtls_mpi_cmp_mpi( &ctx->E, &ctx->N ) >= 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    if (mbedtls_mpi_bitlen(&ctx->N) < 128) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
-    return( 0 );
+    if (mbedtls_mpi_get_bit(&ctx->E, 0) == 0 ||
+        mbedtls_mpi_bitlen(&ctx->E)     < 2  ||
+        mbedtls_mpi_cmp_mpi(&ctx->E, &ctx->N) >= 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
+    }
+
+    return 0;
 }
 
 /*
  * Check for the consistency of all fields in an RSA private key context
  */
-int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx )
+int mbedtls_rsa_check_privkey(const mbedtls_rsa_context *ctx)
 {
-    RSA_VALIDATE_RET( ctx != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
 
-    if( mbedtls_rsa_check_pubkey( ctx ) != 0 ||
-        rsa_check_context( ctx, 1 /* private */, 1 /* blinding */ ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    if (mbedtls_rsa_check_pubkey(ctx) != 0 ||
+        rsa_check_context(ctx, 1 /* private */, 1 /* blinding */) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
-    if( mbedtls_rsa_validate_params( &ctx->N, &ctx->P, &ctx->Q,
-                                     &ctx->D, &ctx->E, NULL, NULL ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    if (mbedtls_rsa_validate_params(&ctx->N, &ctx->P, &ctx->Q,
+                                    &ctx->D, &ctx->E, NULL, NULL) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    else if( mbedtls_rsa_validate_crt( &ctx->P, &ctx->Q, &ctx->D,
-                                       &ctx->DP, &ctx->DQ, &ctx->QP ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    else if (mbedtls_rsa_validate_crt(&ctx->P, &ctx->Q, &ctx->D,
+                                      &ctx->DP, &ctx->DQ, &ctx->QP) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 #endif
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Check if contexts holding a public and private key match
  */
-int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub,
-                                const mbedtls_rsa_context *prv )
+int mbedtls_rsa_check_pub_priv(const mbedtls_rsa_context *pub,
+                               const mbedtls_rsa_context *prv)
 {
-    RSA_VALIDATE_RET( pub != NULL );
-    RSA_VALIDATE_RET( prv != NULL );
+    RSA_VALIDATE_RET(pub != NULL);
+    RSA_VALIDATE_RET(prv != NULL);
 
-    if( mbedtls_rsa_check_pubkey( pub )  != 0 ||
-        mbedtls_rsa_check_privkey( prv ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    if (mbedtls_rsa_check_pubkey(pub)  != 0 ||
+        mbedtls_rsa_check_privkey(prv) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
-    if( mbedtls_mpi_cmp_mpi( &pub->N, &prv->N ) != 0 ||
-        mbedtls_mpi_cmp_mpi( &pub->E, &prv->E ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
+    if (mbedtls_mpi_cmp_mpi(&pub->N, &prv->N) != 0 ||
+        mbedtls_mpi_cmp_mpi(&pub->E, &prv->E) != 0) {
+        return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Do an RSA public key operation
  */
-int mbedtls_rsa_public( mbedtls_rsa_context *ctx,
-                const unsigned char *input,
-                unsigned char *output )
+int mbedtls_rsa_public(mbedtls_rsa_context *ctx,
+                       const unsigned char *input,
+                       unsigned char *output)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t olen;
     mbedtls_mpi T;
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( input != NULL );
-    RSA_VALIDATE_RET( output != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(input != NULL);
+    RSA_VALIDATE_RET(output != NULL);
 
-    if( rsa_check_context( ctx, 0 /* public */, 0 /* no blinding */ ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (rsa_check_context(ctx, 0 /* public */, 0 /* no blinding */)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    mbedtls_mpi_init( &T );
+    mbedtls_mpi_init(&T);
 
 #if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_mutex_lock(&ctx->mutex)) != 0) {
+        return ret;
+    }
 #endif
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&T, input, ctx->len));
 
-    if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 )
-    {
+    if (mbedtls_mpi_cmp_mpi(&T, &ctx->N) >= 0) {
         ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
         goto cleanup;
     }
 
     olen = ctx->len;
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, &ctx->E, &ctx->N, &ctx->RN ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&T, &T, &ctx->E, &ctx->N, &ctx->RN));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&T, output, olen));
 
 cleanup:
 #if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
+    if (mbedtls_mutex_unlock(&ctx->mutex) != 0) {
+        return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+    }
 #endif
 
-    mbedtls_mpi_free( &T );
+    mbedtls_mpi_free(&T);
 
-    if( ret != 0 )
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_PUBLIC_FAILED, ret ) );
+    if (ret != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_PUBLIC_FAILED, ret);
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -760,63 +758,62 @@
  *  DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer
  *  Berlin Heidelberg, 1996. p. 104-113.
  */
-static int rsa_prepare_blinding( mbedtls_rsa_context *ctx,
-                 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+static int rsa_prepare_blinding(mbedtls_rsa_context *ctx,
+                                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
     int ret, count = 0;
     mbedtls_mpi R;
 
-    mbedtls_mpi_init( &R );
+    mbedtls_mpi_init(&R);
 
-    if( ctx->Vf.p != NULL )
-    {
+    if (ctx->Vf.p != NULL) {
         /* We already have blinding values, just update them by squaring */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->N ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->N ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&ctx->Vi, &ctx->Vi, &ctx->Vi));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&ctx->Vi, &ctx->Vi, &ctx->N));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&ctx->Vf, &ctx->Vf, &ctx->Vf));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&ctx->Vf, &ctx->Vf, &ctx->N));
 
         goto cleanup;
     }
 
     /* Unblinding value: Vf = random number, invertible mod N */
     do {
-        if( count++ > 10 )
-        {
+        if (count++ > 10) {
             ret = MBEDTLS_ERR_RSA_RNG_FAILED;
             goto cleanup;
         }
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vf, ctx->len - 1, f_rng, p_rng ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(&ctx->Vf, ctx->len - 1, f_rng, p_rng));
 
         /* Compute Vf^-1 as R * (R Vf)^-1 to avoid leaks from inv_mod. */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, ctx->len - 1, f_rng, p_rng ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vf, &R ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->N ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(&R, ctx->len - 1, f_rng, p_rng));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&ctx->Vi, &ctx->Vf, &R));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&ctx->Vi, &ctx->Vi, &ctx->N));
 
         /* At this point, Vi is invertible mod N if and only if both Vf and R
          * are invertible mod N. If one of them isn't, we don't need to know
          * which one, we just loop and choose new values for both of them.
          * (Each iteration succeeds with overwhelming probability.) */
-        ret = mbedtls_mpi_inv_mod( &ctx->Vi, &ctx->Vi, &ctx->N );
-        if( ret != 0 && ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE )
+        ret = mbedtls_mpi_inv_mod(&ctx->Vi, &ctx->Vi, &ctx->N);
+        if (ret != 0 && ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) {
             goto cleanup;
+        }
 
-    } while( ret == MBEDTLS_ERR_MPI_NOT_ACCEPTABLE );
+    } while (ret == MBEDTLS_ERR_MPI_NOT_ACCEPTABLE);
 
     /* Finish the computation of Vf^-1 = R * (R Vf)^-1 */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &R ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->N ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&ctx->Vi, &ctx->Vi, &R));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&ctx->Vi, &ctx->Vi, &ctx->N));
 
     /* Blinding value: Vi = Vf^(-e) mod N
      * (Vi already contains Vf^-1 at this point) */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vi, &ctx->Vi, &ctx->E, &ctx->N, &ctx->RN ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&ctx->Vi, &ctx->Vi, &ctx->E, &ctx->N, &ctx->RN));
 
 
 cleanup:
-    mbedtls_mpi_free( &R );
+    mbedtls_mpi_free(&R);
 
-    return( ret );
+    return ret;
 }
 
 /*
@@ -843,11 +840,11 @@
 /*
  * Do an RSA private key operation
  */
-int mbedtls_rsa_private( mbedtls_rsa_context *ctx,
-                 int (*f_rng)(void *, unsigned char *, size_t),
-                 void *p_rng,
-                 const unsigned char *input,
-                 unsigned char *output )
+int mbedtls_rsa_private(mbedtls_rsa_context *ctx,
+                        int (*f_rng)(void *, unsigned char *, size_t),
+                        void *p_rng,
+                        const unsigned char *input,
+                        unsigned char *output)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t olen;
@@ -884,110 +881,107 @@
      * checked result; should be the same in the end. */
     mbedtls_mpi I, C;
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( input  != NULL );
-    RSA_VALIDATE_RET( output != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(input  != NULL);
+    RSA_VALIDATE_RET(output != NULL);
 
-    if( rsa_check_context( ctx, 1             /* private key checks */,
-                                f_rng != NULL /* blinding y/n       */ ) != 0 )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (rsa_check_context(ctx, 1 /* private key checks */,
+                          f_rng != NULL /* blinding y/n       */) != 0) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 
 #if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_mutex_lock(&ctx->mutex)) != 0) {
+        return ret;
+    }
 #endif
 
     /* MPI Initialization */
-    mbedtls_mpi_init( &T );
+    mbedtls_mpi_init(&T);
 
-    mbedtls_mpi_init( &P1 );
-    mbedtls_mpi_init( &Q1 );
-    mbedtls_mpi_init( &R );
+    mbedtls_mpi_init(&P1);
+    mbedtls_mpi_init(&Q1);
+    mbedtls_mpi_init(&R);
 
-    if( f_rng != NULL )
-    {
+    if (f_rng != NULL) {
 #if defined(MBEDTLS_RSA_NO_CRT)
-        mbedtls_mpi_init( &D_blind );
+        mbedtls_mpi_init(&D_blind);
 #else
-        mbedtls_mpi_init( &DP_blind );
-        mbedtls_mpi_init( &DQ_blind );
+        mbedtls_mpi_init(&DP_blind);
+        mbedtls_mpi_init(&DQ_blind);
 #endif
     }
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    mbedtls_mpi_init( &TP ); mbedtls_mpi_init( &TQ );
+    mbedtls_mpi_init(&TP); mbedtls_mpi_init(&TQ);
 #endif
 
-    mbedtls_mpi_init( &I );
-    mbedtls_mpi_init( &C );
+    mbedtls_mpi_init(&I);
+    mbedtls_mpi_init(&C);
 
     /* End of MPI initialization */
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) );
-    if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 )
-    {
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_binary(&T, input, ctx->len));
+    if (mbedtls_mpi_cmp_mpi(&T, &ctx->N) >= 0) {
         ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
         goto cleanup;
     }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &I, &T ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&I, &T));
 
-    if( f_rng != NULL )
-    {
+    if (f_rng != NULL) {
         /*
          * Blinding
          * T = T * Vi mod N
          */
-        MBEDTLS_MPI_CHK( rsa_prepare_blinding( ctx, f_rng, p_rng ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vi ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) );
+        MBEDTLS_MPI_CHK(rsa_prepare_blinding(ctx, f_rng, p_rng));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&T, &T, &ctx->Vi));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&T, &T, &ctx->N));
 
         /*
          * Exponent blinding
          */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P1, &ctx->P, 1 ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q1, &ctx->Q, 1 ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_int(&P1, &ctx->P, 1));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_int(&Q1, &ctx->Q, 1));
 
 #if defined(MBEDTLS_RSA_NO_CRT)
         /*
          * D_blind = ( P - 1 ) * ( Q - 1 ) * R + D
          */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, RSA_EXPONENT_BLINDING,
-                         f_rng, p_rng ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &D_blind, &P1, &Q1 ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &D_blind, &D_blind, &R ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &D_blind, &D_blind, &ctx->D ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(&R, RSA_EXPONENT_BLINDING,
+                                                f_rng, p_rng));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&D_blind, &P1, &Q1));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&D_blind, &D_blind, &R));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&D_blind, &D_blind, &ctx->D));
 
         D = &D_blind;
 #else
         /*
          * DP_blind = ( P - 1 ) * R + DP
          */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, RSA_EXPONENT_BLINDING,
-                         f_rng, p_rng ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DP_blind, &P1, &R ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &DP_blind, &DP_blind,
-                    &ctx->DP ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(&R, RSA_EXPONENT_BLINDING,
+                                                f_rng, p_rng));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&DP_blind, &P1, &R));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&DP_blind, &DP_blind,
+                                            &ctx->DP));
 
         DP = &DP_blind;
 
         /*
          * DQ_blind = ( Q - 1 ) * R + DQ
          */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, RSA_EXPONENT_BLINDING,
-                         f_rng, p_rng ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DQ_blind, &Q1, &R ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &DQ_blind, &DQ_blind,
-                    &ctx->DQ ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(&R, RSA_EXPONENT_BLINDING,
+                                                f_rng, p_rng));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&DQ_blind, &Q1, &R));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&DQ_blind, &DQ_blind,
+                                            &ctx->DQ));
 
         DQ = &DQ_blind;
 #endif /* MBEDTLS_RSA_NO_CRT */
     }
 
 #if defined(MBEDTLS_RSA_NO_CRT)
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, D, &ctx->N, &ctx->RN ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&T, &T, D, &ctx->N, &ctx->RN));
 #else
     /*
      * Faster decryption using the CRT
@@ -996,78 +990,77 @@
      * TQ = input ^ dQ mod Q
      */
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &TP, &T, DP, &ctx->P, &ctx->RP ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &TQ, &T, DQ, &ctx->Q, &ctx->RQ ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&TP, &T, DP, &ctx->P, &ctx->RP));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&TQ, &T, DQ, &ctx->Q, &ctx->RQ));
 
     /*
      * T = (TP - TQ) * (Q^-1 mod P) mod P
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &TP, &TQ ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &TP, &T, &ctx->QP ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &TP, &ctx->P ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&T, &TP, &TQ));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&TP, &T, &ctx->QP));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&T, &TP, &ctx->P));
 
     /*
      * T = TQ + T * Q
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &TP, &T, &ctx->Q ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &T, &TQ, &TP ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&TP, &T, &ctx->Q));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&T, &TQ, &TP));
 #endif /* MBEDTLS_RSA_NO_CRT */
 
-    if( f_rng != NULL )
-    {
+    if (f_rng != NULL) {
         /*
          * Unblind
          * T = T * Vf mod N
          */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vf ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&T, &T, &ctx->Vf));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&T, &T, &ctx->N));
     }
 
     /* Verify the result to prevent glitching attacks. */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &C, &T, &ctx->E,
-                                          &ctx->N, &ctx->RN ) );
-    if( mbedtls_mpi_cmp_mpi( &C, &I ) != 0 )
-    {
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&C, &T, &ctx->E,
+                                        &ctx->N, &ctx->RN));
+    if (mbedtls_mpi_cmp_mpi(&C, &I) != 0) {
         ret = MBEDTLS_ERR_RSA_VERIFY_FAILED;
         goto cleanup;
     }
 
     olen = ctx->len;
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_write_binary(&T, output, olen));
 
 cleanup:
 #if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
+    if (mbedtls_mutex_unlock(&ctx->mutex) != 0) {
+        return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+    }
 #endif
 
-    mbedtls_mpi_free( &P1 );
-    mbedtls_mpi_free( &Q1 );
-    mbedtls_mpi_free( &R );
+    mbedtls_mpi_free(&P1);
+    mbedtls_mpi_free(&Q1);
+    mbedtls_mpi_free(&R);
 
-    if( f_rng != NULL )
-    {
+    if (f_rng != NULL) {
 #if defined(MBEDTLS_RSA_NO_CRT)
-        mbedtls_mpi_free( &D_blind );
+        mbedtls_mpi_free(&D_blind);
 #else
-        mbedtls_mpi_free( &DP_blind );
-        mbedtls_mpi_free( &DQ_blind );
+        mbedtls_mpi_free(&DP_blind);
+        mbedtls_mpi_free(&DQ_blind);
 #endif
     }
 
-    mbedtls_mpi_free( &T );
+    mbedtls_mpi_free(&T);
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    mbedtls_mpi_free( &TP ); mbedtls_mpi_free( &TQ );
+    mbedtls_mpi_free(&TP); mbedtls_mpi_free(&TQ);
 #endif
 
-    mbedtls_mpi_free( &C );
-    mbedtls_mpi_free( &I );
+    mbedtls_mpi_free(&C);
+    mbedtls_mpi_free(&I);
 
-    if( ret != 0 && ret >= -0x007f )
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_PRIVATE_FAILED, ret ) );
+    if (ret != 0 && ret >= -0x007f) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_PRIVATE_FAILED, ret);
+    }
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_PKCS1_V21)
@@ -1080,8 +1073,8 @@
  * \param slen      length of the source buffer
  * \param md_ctx    message digest context to use
  */
-static int mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src,
-                      size_t slen, mbedtls_md_context_t *md_ctx )
+static int mgf_mask(unsigned char *dst, size_t dlen, unsigned char *src,
+                    size_t slen, mbedtls_md_context_t *md_ctx)
 {
     unsigned char mask[MBEDTLS_MD_MAX_SIZE];
     unsigned char counter[4];
@@ -1090,31 +1083,36 @@
     size_t i, use_len;
     int ret = 0;
 
-    memset( mask, 0, MBEDTLS_MD_MAX_SIZE );
-    memset( counter, 0, 4 );
+    memset(mask, 0, MBEDTLS_MD_MAX_SIZE);
+    memset(counter, 0, 4);
 
-    hlen = mbedtls_md_get_size( md_ctx->md_info );
+    hlen = mbedtls_md_get_size(md_ctx->md_info);
 
     /* Generate and apply dbMask */
     p = dst;
 
-    while( dlen > 0 )
-    {
+    while (dlen > 0) {
         use_len = hlen;
-        if( dlen < hlen )
+        if (dlen < hlen) {
             use_len = dlen;
+        }
 
-        if( ( ret = mbedtls_md_starts( md_ctx ) ) != 0 )
+        if ((ret = mbedtls_md_starts(md_ctx)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_md_update( md_ctx, src, slen ) ) != 0 )
+        }
+        if ((ret = mbedtls_md_update(md_ctx, src, slen)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_md_update( md_ctx, counter, 4 ) ) != 0 )
+        }
+        if ((ret = mbedtls_md_update(md_ctx, counter, 4)) != 0) {
             goto exit;
-        if( ( ret = mbedtls_md_finish( md_ctx, mask ) ) != 0 )
+        }
+        if ((ret = mbedtls_md_finish(md_ctx, mask)) != 0) {
             goto exit;
+        }
 
-        for( i = 0; i < use_len; ++i )
+        for (i = 0; i < use_len; ++i) {
             *p++ ^= mask[i];
+        }
 
         counter[3]++;
 
@@ -1122,9 +1120,9 @@
     }
 
 exit:
-    mbedtls_platform_zeroize( mask, sizeof( mask ) );
+    mbedtls_platform_zeroize(mask, sizeof(mask));
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_PKCS1_V21 */
 
@@ -1132,14 +1130,14 @@
 /*
  * Implementation of the PKCS#1 v2.1 RSAES-OAEP-ENCRYPT function
  */
-int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx,
-                            int (*f_rng)(void *, unsigned char *, size_t),
-                            void *p_rng,
-                            int mode,
-                            const unsigned char *label, size_t label_len,
-                            size_t ilen,
-                            const unsigned char *input,
-                            unsigned char *output )
+int mbedtls_rsa_rsaes_oaep_encrypt(mbedtls_rsa_context *ctx,
+                                   int (*f_rng)(void *, unsigned char *, size_t),
+                                   void *p_rng,
+                                   int mode,
+                                   const unsigned char *label, size_t label_len,
+                                   size_t ilen,
+                                   const unsigned char *input,
+                                   unsigned char *output)
 {
     size_t olen;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -1148,72 +1146,83 @@
     const mbedtls_md_info_t *md_info;
     mbedtls_md_context_t md_ctx;
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( output != NULL );
-    RSA_VALIDATE_RET( ilen == 0 || input != NULL );
-    RSA_VALIDATE_RET( label_len == 0 || label != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(output != NULL);
+    RSA_VALIDATE_RET(ilen == 0 || input != NULL);
+    RSA_VALIDATE_RET(label_len == 0 || label != NULL);
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    if( f_rng == NULL )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (f_rng == NULL) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id );
-    if( md_info == NULL )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    md_info = mbedtls_md_info_from_type((mbedtls_md_type_t) ctx->hash_id);
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     olen = ctx->len;
-    hlen = mbedtls_md_get_size( md_info );
+    hlen = mbedtls_md_get_size(md_info);
 
     /* first comparison checks for overflow */
-    if( ilen + 2 * hlen + 2 < ilen || olen < ilen + 2 * hlen + 2 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ilen + 2 * hlen + 2 < ilen || olen < ilen + 2 * hlen + 2) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    memset( output, 0, olen );
+    memset(output, 0, olen);
 
     *p++ = 0;
 
     /* Generate a random octet string seed */
-    if( ( ret = f_rng( p_rng, p, hlen ) ) != 0 )
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_RNG_FAILED, ret ) );
+    if ((ret = f_rng(p_rng, p, hlen)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_RNG_FAILED, ret);
+    }
 
     p += hlen;
 
     /* Construct DB */
-    if( ( ret = mbedtls_md( md_info, label, label_len, p ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_md(md_info, label, label_len, p)) != 0) {
+        return ret;
+    }
     p += hlen;
     p += olen - 2 * hlen - 2 - ilen;
     *p++ = 1;
-    if( ilen != 0 )
-        memcpy( p, input, ilen );
+    if (ilen != 0) {
+        memcpy(p, input, ilen);
+    }
 
-    mbedtls_md_init( &md_ctx );
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
+    mbedtls_md_init(&md_ctx);
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 0)) != 0) {
         goto exit;
+    }
 
     /* maskedDB: Apply dbMask to DB */
-    if( ( ret = mgf_mask( output + hlen + 1, olen - hlen - 1, output + 1, hlen,
-                          &md_ctx ) ) != 0 )
+    if ((ret = mgf_mask(output + hlen + 1, olen - hlen - 1, output + 1, hlen,
+                        &md_ctx)) != 0) {
         goto exit;
+    }
 
     /* maskedSeed: Apply seedMask to seed */
-    if( ( ret = mgf_mask( output + 1, hlen, output + hlen + 1, olen - hlen - 1,
-                          &md_ctx ) ) != 0 )
+    if ((ret = mgf_mask(output + 1, hlen, output + hlen + 1, olen - hlen - 1,
+                        &md_ctx)) != 0) {
         goto exit;
+    }
 
 exit:
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
-    if( ret != 0 )
-        return( ret );
+    if (ret != 0) {
+        return ret;
+    }
 
-    return( ( mode == MBEDTLS_RSA_PUBLIC )
-            ? mbedtls_rsa_public(  ctx, output, output )
-            : mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) );
+    return (mode == MBEDTLS_RSA_PUBLIC)
+            ? mbedtls_rsa_public(ctx, output, output)
+            : mbedtls_rsa_private(ctx, f_rng, p_rng, output, output);
 }
 #endif /* MBEDTLS_PKCS1_V21 */
 
@@ -1221,107 +1230,108 @@
 /*
  * Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-ENCRYPT function
  */
-int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx,
-                                 int (*f_rng)(void *, unsigned char *, size_t),
-                                 void *p_rng,
-                                 int mode, size_t ilen,
-                                 const unsigned char *input,
-                                 unsigned char *output )
+int mbedtls_rsa_rsaes_pkcs1_v15_encrypt(mbedtls_rsa_context *ctx,
+                                        int (*f_rng)(void *, unsigned char *, size_t),
+                                        void *p_rng,
+                                        int mode, size_t ilen,
+                                        const unsigned char *input,
+                                        unsigned char *output)
 {
     size_t nb_pad, olen;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *p = output;
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( output != NULL );
-    RSA_VALIDATE_RET( ilen == 0 || input != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(output != NULL);
+    RSA_VALIDATE_RET(ilen == 0 || input != NULL);
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     olen = ctx->len;
 
     /* first comparison checks for overflow */
-    if( ilen + 11 < ilen || olen < ilen + 11 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ilen + 11 < ilen || olen < ilen + 11) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     nb_pad = olen - 3 - ilen;
 
     *p++ = 0;
-    if( mode == MBEDTLS_RSA_PUBLIC )
-    {
-        if( f_rng == NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PUBLIC) {
+        if (f_rng == NULL) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
         *p++ = MBEDTLS_RSA_CRYPT;
 
-        while( nb_pad-- > 0 )
-        {
+        while (nb_pad-- > 0) {
             int rng_dl = 100;
 
             do {
-                ret = f_rng( p_rng, p, 1 );
-            } while( *p == 0 && --rng_dl && ret == 0 );
+                ret = f_rng(p_rng, p, 1);
+            } while (*p == 0 && --rng_dl && ret == 0);
 
             /* Check if RNG failed to generate data */
-            if( rng_dl == 0 || ret != 0 )
-                return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_RNG_FAILED, ret ) );
+            if (rng_dl == 0 || ret != 0) {
+                return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_RNG_FAILED, ret);
+            }
 
             p++;
         }
-    }
-    else
-    {
+    } else {
         *p++ = MBEDTLS_RSA_SIGN;
 
-        while( nb_pad-- > 0 )
+        while (nb_pad-- > 0) {
             *p++ = 0xFF;
+        }
     }
 
     *p++ = 0;
-    if( ilen != 0 )
-        memcpy( p, input, ilen );
+    if (ilen != 0) {
+        memcpy(p, input, ilen);
+    }
 
-    return( ( mode == MBEDTLS_RSA_PUBLIC )
-            ? mbedtls_rsa_public(  ctx, output, output )
-            : mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) );
+    return (mode == MBEDTLS_RSA_PUBLIC)
+            ? mbedtls_rsa_public(ctx, output, output)
+            : mbedtls_rsa_private(ctx, f_rng, p_rng, output, output);
 }
 #endif /* MBEDTLS_PKCS1_V15 */
 
 /*
  * Add the message padding, then do an RSA operation
  */
-int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng,
-                       int mode, size_t ilen,
-                       const unsigned char *input,
-                       unsigned char *output )
+int mbedtls_rsa_pkcs1_encrypt(mbedtls_rsa_context *ctx,
+                              int (*f_rng)(void *, unsigned char *, size_t),
+                              void *p_rng,
+                              int mode, size_t ilen,
+                              const unsigned char *input,
+                              unsigned char *output)
 {
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( output != NULL );
-    RSA_VALIDATE_RET( ilen == 0 || input != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(output != NULL);
+    RSA_VALIDATE_RET(ilen == 0 || input != NULL);
 
-    switch( ctx->padding )
-    {
+    switch (ctx->padding) {
 #if defined(MBEDTLS_PKCS1_V15)
         case MBEDTLS_RSA_PKCS_V15:
-            return mbedtls_rsa_rsaes_pkcs1_v15_encrypt( ctx, f_rng, p_rng, mode, ilen,
-                                                input, output );
+            return mbedtls_rsa_rsaes_pkcs1_v15_encrypt(ctx, f_rng, p_rng, mode, ilen,
+                                                       input, output);
 #endif
 
 #if defined(MBEDTLS_PKCS1_V21)
         case MBEDTLS_RSA_PKCS_V21:
-            return mbedtls_rsa_rsaes_oaep_encrypt( ctx, f_rng, p_rng, mode, NULL, 0,
-                                           ilen, input, output );
+            return mbedtls_rsa_rsaes_oaep_encrypt(ctx, f_rng, p_rng, mode, NULL, 0,
+                                                  ilen, input, output);
 #endif
 
         default:
-            return( MBEDTLS_ERR_RSA_INVALID_PADDING );
+            return MBEDTLS_ERR_RSA_INVALID_PADDING;
     }
 }
 
@@ -1329,15 +1339,15 @@
 /*
  * Implementation of the PKCS#1 v2.1 RSAES-OAEP-DECRYPT function
  */
-int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx,
-                            int (*f_rng)(void *, unsigned char *, size_t),
-                            void *p_rng,
-                            int mode,
-                            const unsigned char *label, size_t label_len,
-                            size_t *olen,
-                            const unsigned char *input,
-                            unsigned char *output,
-                            size_t output_max_len )
+int mbedtls_rsa_rsaes_oaep_decrypt(mbedtls_rsa_context *ctx,
+                                   int (*f_rng)(void *, unsigned char *, size_t),
+                                   void *p_rng,
+                                   int mode,
+                                   const unsigned char *label, size_t label_len,
+                                   size_t *olen,
+                                   const unsigned char *input,
+                                   unsigned char *output,
+                                   size_t output_max_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t ilen, i, pad_len;
@@ -1348,71 +1358,75 @@
     const mbedtls_md_info_t *md_info;
     mbedtls_md_context_t md_ctx;
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( output_max_len == 0 || output != NULL );
-    RSA_VALIDATE_RET( label_len == 0 || label != NULL );
-    RSA_VALIDATE_RET( input != NULL );
-    RSA_VALIDATE_RET( olen != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(output_max_len == 0 || output != NULL);
+    RSA_VALIDATE_RET(label_len == 0 || label != NULL);
+    RSA_VALIDATE_RET(input != NULL);
+    RSA_VALIDATE_RET(olen != NULL);
 
     /*
      * Parameters sanity checks
      */
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     ilen = ctx->len;
 
-    if( ilen < 16 || ilen > sizeof( buf ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ilen < 16 || ilen > sizeof(buf)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id );
-    if( md_info == NULL )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    md_info = mbedtls_md_info_from_type((mbedtls_md_type_t) ctx->hash_id);
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    hlen = mbedtls_md_get_size( md_info );
+    hlen = mbedtls_md_get_size(md_info);
 
     // checking for integer underflow
-    if( 2 * hlen + 2 > ilen )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (2 * hlen + 2 > ilen) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     /*
      * RSA operation
      */
-    ret = ( mode == MBEDTLS_RSA_PUBLIC )
-          ? mbedtls_rsa_public(  ctx, input, buf )
-          : mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf );
+    ret = (mode == MBEDTLS_RSA_PUBLIC)
+          ? mbedtls_rsa_public(ctx, input, buf)
+          : mbedtls_rsa_private(ctx, f_rng, p_rng, input, buf);
 
-    if( ret != 0 )
+    if (ret != 0) {
         goto cleanup;
+    }
 
     /*
      * Unmask data and generate lHash
      */
-    mbedtls_md_init( &md_ctx );
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
-    {
-        mbedtls_md_free( &md_ctx );
+    mbedtls_md_init(&md_ctx);
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 0)) != 0) {
+        mbedtls_md_free(&md_ctx);
         goto cleanup;
     }
 
     /* seed: Apply seedMask to maskedSeed */
-    if( ( ret = mgf_mask( buf + 1, hlen, buf + hlen + 1, ilen - hlen - 1,
-                          &md_ctx ) ) != 0 ||
-    /* DB: Apply dbMask to maskedDB */
-        ( ret = mgf_mask( buf + hlen + 1, ilen - hlen - 1, buf + 1, hlen,
-                          &md_ctx ) ) != 0 )
-    {
-        mbedtls_md_free( &md_ctx );
+    if ((ret = mgf_mask(buf + 1, hlen, buf + hlen + 1, ilen - hlen - 1,
+                        &md_ctx)) != 0 ||
+        /* DB: Apply dbMask to maskedDB */
+        (ret = mgf_mask(buf + hlen + 1, ilen - hlen - 1, buf + 1, hlen,
+                        &md_ctx)) != 0) {
+        mbedtls_md_free(&md_ctx);
         goto cleanup;
     }
 
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
     /* Generate lHash */
-    if( ( ret = mbedtls_md( md_info, label, label_len, lhash ) ) != 0 )
+    if ((ret = mbedtls_md(md_info, label, label_len, lhash)) != 0) {
         goto cleanup;
+    }
 
     /*
      * Check contents, in "constant-time"
@@ -1425,17 +1439,17 @@
     p += hlen; /* Skip seed */
 
     /* Check lHash */
-    for( i = 0; i < hlen; i++ )
+    for (i = 0; i < hlen; i++) {
         bad |= lhash[i] ^ *p++;
+    }
 
     /* Get zero-padding len, but always read till end of buffer
      * (minus one, for the 01 byte) */
     pad_len = 0;
     pad_done = 0;
-    for( i = 0; i < ilen - 2 * hlen - 2; i++ )
-    {
+    for (i = 0; i < ilen - 2 * hlen - 2; i++) {
         pad_done |= p[i];
-        pad_len += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1;
+        pad_len += ((pad_done | (unsigned char) -pad_done) >> 7) ^ 1;
     }
 
     p += pad_len;
@@ -1447,28 +1461,27 @@
      * recommendations in PKCS#1 v2.2: an opponent cannot distinguish between
      * the different error conditions.
      */
-    if( bad != 0 )
-    {
+    if (bad != 0) {
         ret = MBEDTLS_ERR_RSA_INVALID_PADDING;
         goto cleanup;
     }
 
-    if( ilen - ( p - buf ) > output_max_len )
-    {
+    if (ilen - (p - buf) > output_max_len) {
         ret = MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE;
         goto cleanup;
     }
 
     *olen = ilen - (p - buf);
-    if( *olen != 0 )
-        memcpy( output, p, *olen );
+    if (*olen != 0) {
+        memcpy(output, p, *olen);
+    }
     ret = 0;
 
 cleanup:
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
-    mbedtls_platform_zeroize( lhash, sizeof( lhash ) );
+    mbedtls_platform_zeroize(buf, sizeof(buf));
+    mbedtls_platform_zeroize(lhash, sizeof(lhash));
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_PKCS1_V21 */
 
@@ -1476,99 +1489,101 @@
 /*
  * Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-DECRYPT function
  */
-int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx,
-                                 int (*f_rng)(void *, unsigned char *, size_t),
-                                 void *p_rng,
-                                 int mode,
-                                 size_t *olen,
-                                 const unsigned char *input,
-                                 unsigned char *output,
-                                 size_t output_max_len )
+int mbedtls_rsa_rsaes_pkcs1_v15_decrypt(mbedtls_rsa_context *ctx,
+                                        int (*f_rng)(void *, unsigned char *, size_t),
+                                        void *p_rng,
+                                        int mode,
+                                        size_t *olen,
+                                        const unsigned char *input,
+                                        unsigned char *output,
+                                        size_t output_max_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t ilen;
     unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( output_max_len == 0 || output != NULL );
-    RSA_VALIDATE_RET( input != NULL );
-    RSA_VALIDATE_RET( olen != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(output_max_len == 0 || output != NULL);
+    RSA_VALIDATE_RET(input != NULL);
+    RSA_VALIDATE_RET(olen != NULL);
 
     ilen = ctx->len;
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    if( ilen < 16 || ilen > sizeof( buf ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (ilen < 16 || ilen > sizeof(buf)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    ret = ( mode == MBEDTLS_RSA_PUBLIC )
-          ? mbedtls_rsa_public(  ctx, input, buf )
-          : mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf );
+    ret = (mode == MBEDTLS_RSA_PUBLIC)
+          ? mbedtls_rsa_public(ctx, input, buf)
+          : mbedtls_rsa_private(ctx, f_rng, p_rng, input, buf);
 
-    if( ret != 0 )
+    if (ret != 0) {
         goto cleanup;
+    }
 
-    ret = mbedtls_ct_rsaes_pkcs1_v15_unpadding( mode, buf, ilen,
-                                                output, output_max_len, olen );
+    ret = mbedtls_ct_rsaes_pkcs1_v15_unpadding(mode, buf, ilen,
+                                               output, output_max_len, olen);
 
 cleanup:
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
+    mbedtls_platform_zeroize(buf, sizeof(buf));
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_PKCS1_V15 */
 
 /*
  * Do an RSA operation, then remove the message padding
  */
-int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx,
-                       int (*f_rng)(void *, unsigned char *, size_t),
-                       void *p_rng,
-                       int mode, size_t *olen,
-                       const unsigned char *input,
-                       unsigned char *output,
-                       size_t output_max_len)
+int mbedtls_rsa_pkcs1_decrypt(mbedtls_rsa_context *ctx,
+                              int (*f_rng)(void *, unsigned char *, size_t),
+                              void *p_rng,
+                              int mode, size_t *olen,
+                              const unsigned char *input,
+                              unsigned char *output,
+                              size_t output_max_len)
 {
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( output_max_len == 0 || output != NULL );
-    RSA_VALIDATE_RET( input != NULL );
-    RSA_VALIDATE_RET( olen != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(output_max_len == 0 || output != NULL);
+    RSA_VALIDATE_RET(input != NULL);
+    RSA_VALIDATE_RET(olen != NULL);
 
-    switch( ctx->padding )
-    {
+    switch (ctx->padding) {
 #if defined(MBEDTLS_PKCS1_V15)
         case MBEDTLS_RSA_PKCS_V15:
-            return mbedtls_rsa_rsaes_pkcs1_v15_decrypt( ctx, f_rng, p_rng, mode, olen,
-                                                input, output, output_max_len );
+            return mbedtls_rsa_rsaes_pkcs1_v15_decrypt(ctx, f_rng, p_rng, mode, olen,
+                                                       input, output, output_max_len);
 #endif
 
 #if defined(MBEDTLS_PKCS1_V21)
         case MBEDTLS_RSA_PKCS_V21:
-            return mbedtls_rsa_rsaes_oaep_decrypt( ctx, f_rng, p_rng, mode, NULL, 0,
-                                           olen, input, output,
-                                           output_max_len );
+            return mbedtls_rsa_rsaes_oaep_decrypt(ctx, f_rng, p_rng, mode, NULL, 0,
+                                                  olen, input, output,
+                                                  output_max_len);
 #endif
 
         default:
-            return( MBEDTLS_ERR_RSA_INVALID_PADDING );
+            return MBEDTLS_ERR_RSA_INVALID_PADDING;
     }
 }
 
 #if defined(MBEDTLS_PKCS1_V21)
-static int rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx,
-                         int (*f_rng)(void *, unsigned char *, size_t),
-                         void *p_rng,
-                         int mode,
-                         mbedtls_md_type_t md_alg,
-                         unsigned int hashlen,
-                         const unsigned char *hash,
-                         int saltlen,
-                         unsigned char *sig )
+static int rsa_rsassa_pss_sign(mbedtls_rsa_context *ctx,
+                               int (*f_rng)(void *, unsigned char *, size_t),
+                               void *p_rng,
+                               int mode,
+                               mbedtls_md_type_t md_alg,
+                               unsigned int hashlen,
+                               const unsigned char *hash,
+                               int saltlen,
+                               unsigned char *sig)
 {
     size_t olen;
     unsigned char *p = sig;
@@ -1578,152 +1593,161 @@
     size_t msb;
     const mbedtls_md_info_t *md_info;
     mbedtls_md_context_t md_ctx;
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
-    RSA_VALIDATE_RET( sig != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
+    RSA_VALIDATE_RET(sig != NULL);
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    if( f_rng == NULL )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (f_rng == NULL) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     olen = ctx->len;
 
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
+    if (md_alg != MBEDTLS_MD_NONE) {
         /* Gather length of hash to sign */
-        md_info = mbedtls_md_info_from_type( md_alg );
-        if( md_info == NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+        md_info = mbedtls_md_info_from_type(md_alg);
+        if (md_info == NULL) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
-        hashlen = mbedtls_md_get_size( md_info );
+        hashlen = mbedtls_md_get_size(md_info);
     }
 
-    md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id );
-    if( md_info == NULL )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    md_info = mbedtls_md_info_from_type((mbedtls_md_type_t) ctx->hash_id);
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    hlen = mbedtls_md_get_size( md_info );
+    hlen = mbedtls_md_get_size(md_info);
 
-    if (saltlen == MBEDTLS_RSA_SALT_LEN_ANY)
-    {
-       /* Calculate the largest possible salt length, up to the hash size.
-        * Normally this is the hash length, which is the maximum salt length
-        * according to FIPS 185-4 §5.5 (e) and common practice. If there is not
-        * enough room, use the maximum salt length that fits. The constraint is
-        * that the hash length plus the salt length plus 2 bytes must be at most
-        * the key length. This complies with FIPS 186-4 §5.5 (e) and RFC 8017
-        * (PKCS#1 v2.2) §9.1.1 step 3. */
+    if (saltlen == MBEDTLS_RSA_SALT_LEN_ANY) {
+        /* Calculate the largest possible salt length, up to the hash size.
+         * Normally this is the hash length, which is the maximum salt length
+         * according to FIPS 185-4 §5.5 (e) and common practice. If there is not
+         * enough room, use the maximum salt length that fits. The constraint is
+         * that the hash length plus the salt length plus 2 bytes must be at most
+         * the key length. This complies with FIPS 186-4 §5.5 (e) and RFC 8017
+         * (PKCS#1 v2.2) §9.1.1 step 3. */
         min_slen = hlen - 2;
-        if( olen < hlen + min_slen + 2 )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-        else if( olen >= hlen + hlen + 2 )
+        if (olen < hlen + min_slen + 2) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        } else if (olen >= hlen + hlen + 2) {
             slen = hlen;
-        else
+        } else {
             slen = olen - hlen - 2;
-    }
-    else if ( (saltlen < 0) || (saltlen + hlen + 2 > olen) )
-    {
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-    }
-    else
-    {
+        }
+    } else if ((saltlen < 0) || (saltlen + hlen + 2 > olen)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    } else {
         slen = (size_t) saltlen;
     }
 
-    memset( sig, 0, olen );
+    memset(sig, 0, olen);
 
     /* Note: EMSA-PSS encoding is over the length of N - 1 bits */
-    msb = mbedtls_mpi_bitlen( &ctx->N ) - 1;
+    msb = mbedtls_mpi_bitlen(&ctx->N) - 1;
     p += olen - hlen - slen - 2;
     *p++ = 0x01;
 
     /* Generate salt of length slen in place in the encoded message */
     salt = p;
-    if( ( ret = f_rng( p_rng, salt, slen ) ) != 0 )
-        return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_RSA_RNG_FAILED, ret ) );
+    if ((ret = f_rng(p_rng, salt, slen)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_RSA_RNG_FAILED, ret);
+    }
 
     p += slen;
 
-    mbedtls_md_init( &md_ctx );
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
+    mbedtls_md_init(&md_ctx);
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 0)) != 0) {
         goto exit;
+    }
 
     /* Generate H = Hash( M' ) */
-    if( ( ret = mbedtls_md_starts( &md_ctx ) ) != 0 )
+    if ((ret = mbedtls_md_starts(&md_ctx)) != 0) {
         goto exit;
-    if( ( ret = mbedtls_md_update( &md_ctx, p, 8 ) ) != 0 )
+    }
+    if ((ret = mbedtls_md_update(&md_ctx, p, 8)) != 0) {
         goto exit;
-    if( ( ret = mbedtls_md_update( &md_ctx, hash, hashlen ) ) != 0 )
+    }
+    if ((ret = mbedtls_md_update(&md_ctx, hash, hashlen)) != 0) {
         goto exit;
-    if( ( ret = mbedtls_md_update( &md_ctx, salt, slen ) ) != 0 )
+    }
+    if ((ret = mbedtls_md_update(&md_ctx, salt, slen)) != 0) {
         goto exit;
-    if( ( ret = mbedtls_md_finish( &md_ctx, p ) ) != 0 )
+    }
+    if ((ret = mbedtls_md_finish(&md_ctx, p)) != 0) {
         goto exit;
+    }
 
     /* Compensate for boundary condition when applying mask */
-    if( msb % 8 == 0 )
+    if (msb % 8 == 0) {
         offset = 1;
+    }
 
     /* maskedDB: Apply dbMask to DB */
-    if( ( ret = mgf_mask( sig + offset, olen - hlen - 1 - offset, p, hlen,
-                          &md_ctx ) ) != 0 )
+    if ((ret = mgf_mask(sig + offset, olen - hlen - 1 - offset, p, hlen,
+                        &md_ctx)) != 0) {
         goto exit;
+    }
 
-    msb = mbedtls_mpi_bitlen( &ctx->N ) - 1;
-    sig[0] &= 0xFF >> ( olen * 8 - msb );
+    msb = mbedtls_mpi_bitlen(&ctx->N) - 1;
+    sig[0] &= 0xFF >> (olen * 8 - msb);
 
     p += hlen;
     *p++ = 0xBC;
 
 exit:
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
-    if( ret != 0 )
-        return( ret );
+    if (ret != 0) {
+        return ret;
+    }
 
-    return( ( mode == MBEDTLS_RSA_PUBLIC )
-            ? mbedtls_rsa_public(  ctx, sig, sig )
-            : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig ) );
+    return (mode == MBEDTLS_RSA_PUBLIC)
+            ? mbedtls_rsa_public(ctx, sig, sig)
+            : mbedtls_rsa_private(ctx, f_rng, p_rng, sig, sig);
 }
 
 /*
  * Implementation of the PKCS#1 v2.1 RSASSA-PSS-SIGN function with
  * the option to pass in the salt length.
  */
-int mbedtls_rsa_rsassa_pss_sign_ext( mbedtls_rsa_context *ctx,
-                         int (*f_rng)(void *, unsigned char *, size_t),
-                         void *p_rng,
-                         mbedtls_md_type_t md_alg,
-                         unsigned int hashlen,
-                         const unsigned char *hash,
-                         int saltlen,
-                         unsigned char *sig )
+int mbedtls_rsa_rsassa_pss_sign_ext(mbedtls_rsa_context *ctx,
+                                    int (*f_rng)(void *, unsigned char *, size_t),
+                                    void *p_rng,
+                                    mbedtls_md_type_t md_alg,
+                                    unsigned int hashlen,
+                                    const unsigned char *hash,
+                                    int saltlen,
+                                    unsigned char *sig)
 {
-    return rsa_rsassa_pss_sign( ctx, f_rng, p_rng, MBEDTLS_RSA_PRIVATE, md_alg,
-                                hashlen, hash, saltlen, sig );
+    return rsa_rsassa_pss_sign(ctx, f_rng, p_rng, MBEDTLS_RSA_PRIVATE, md_alg,
+                               hashlen, hash, saltlen, sig);
 }
 
 
 /*
  * Implementation of the PKCS#1 v2.1 RSASSA-PSS-SIGN function
  */
-int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx,
-                         int (*f_rng)(void *, unsigned char *, size_t),
-                         void *p_rng,
-                         int mode,
-                         mbedtls_md_type_t md_alg,
-                         unsigned int hashlen,
-                         const unsigned char *hash,
-                         unsigned char *sig )
+int mbedtls_rsa_rsassa_pss_sign(mbedtls_rsa_context *ctx,
+                                int (*f_rng)(void *, unsigned char *, size_t),
+                                void *p_rng,
+                                int mode,
+                                mbedtls_md_type_t md_alg,
+                                unsigned int hashlen,
+                                const unsigned char *hash,
+                                unsigned char *sig)
 {
-    return rsa_rsassa_pss_sign( ctx, f_rng, p_rng, mode, md_alg,
-                                hashlen, hash, MBEDTLS_RSA_SALT_LEN_ANY, sig );
+    return rsa_rsassa_pss_sign(ctx, f_rng, p_rng, mode, md_alg,
+                               hashlen, hash, MBEDTLS_RSA_SALT_LEN_ANY, sig);
 }
 #endif /* MBEDTLS_PKCS1_V21 */
 
@@ -1750,11 +1774,11 @@
  * - dst points to a buffer of size at least dst_len.
  *
  */
-static int rsa_rsassa_pkcs1_v15_encode( mbedtls_md_type_t md_alg,
-                                        unsigned int hashlen,
-                                        const unsigned char *hash,
-                                        size_t dst_len,
-                                        unsigned char *dst )
+static int rsa_rsassa_pkcs1_v15_encode(mbedtls_md_type_t md_alg,
+                                       unsigned int hashlen,
+                                       const unsigned char *hash,
+                                       size_t dst_len,
+                                       unsigned char *dst)
 {
     size_t oid_size  = 0;
     size_t nb_pad    = dst_len;
@@ -1762,23 +1786,25 @@
     const char *oid  = NULL;
 
     /* Are we signing hashed or raw data? */
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
-        const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
-        if( md_info == NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (md_alg != MBEDTLS_MD_NONE) {
+        const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_alg);
+        if (md_info == NULL) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
-        if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+        if (mbedtls_oid_get_oid_by_md(md_alg, &oid, &oid_size) != 0) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
-        hashlen = mbedtls_md_get_size( md_info );
+        hashlen = mbedtls_md_get_size(md_info);
 
         /* Double-check that 8 + hashlen + oid_size can be used as a
          * 1-byte ASN.1 length encoding and that there's no overflow. */
-        if( 8 + hashlen + oid_size  >= 0x80         ||
+        if (8 + hashlen + oid_size  >= 0x80         ||
             10 + hashlen            <  hashlen      ||
-            10 + hashlen + oid_size <  10 + hashlen )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+            10 + hashlen + oid_size <  10 + hashlen) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
         /*
          * Static bounds check:
@@ -1788,22 +1814,23 @@
          * - Need hashlen bytes for hash
          * - Need oid_size bytes for hash alg OID.
          */
-        if( nb_pad < 10 + hashlen + oid_size )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+        if (nb_pad < 10 + hashlen + oid_size) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
         nb_pad -= 10 + hashlen + oid_size;
-    }
-    else
-    {
-        if( nb_pad < hashlen )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    } else {
+        if (nb_pad < hashlen) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
         nb_pad -= hashlen;
     }
 
     /* Need space for signature header and padding delimiter (3 bytes),
      * and 8 bytes for the minimal padding */
-    if( nb_pad < 3 + 8 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (nb_pad < 3 + 8) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
     nb_pad -= 3;
 
     /* Now nb_pad is the amount of memory to be filled
@@ -1812,15 +1839,14 @@
     /* Write signature header and padding */
     *p++ = 0;
     *p++ = MBEDTLS_RSA_SIGN;
-    memset( p, 0xFF, nb_pad );
+    memset(p, 0xFF, nb_pad);
     p += nb_pad;
     *p++ = 0;
 
     /* Are we signing raw data? */
-    if( md_alg == MBEDTLS_MD_NONE )
-    {
-        memcpy( p, hash, hashlen );
-        return( 0 );
+    if (md_alg == MBEDTLS_MD_NONE) {
+        memcpy(p, hash, hashlen);
+        return 0;
     }
 
     /* Signing hashed data, add corresponding ASN.1 structure
@@ -1837,73 +1863,73 @@
      *                 TAG-OCTET + LEN [ HASH ] ]
      */
     *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
-    *p++ = (unsigned char)( 0x08 + oid_size + hashlen );
+    *p++ = (unsigned char) (0x08 + oid_size + hashlen);
     *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
-    *p++ = (unsigned char)( 0x04 + oid_size );
+    *p++ = (unsigned char) (0x04 + oid_size);
     *p++ = MBEDTLS_ASN1_OID;
     *p++ = (unsigned char) oid_size;
-    memcpy( p, oid, oid_size );
+    memcpy(p, oid, oid_size);
     p += oid_size;
     *p++ = MBEDTLS_ASN1_NULL;
     *p++ = 0x00;
     *p++ = MBEDTLS_ASN1_OCTET_STRING;
     *p++ = (unsigned char) hashlen;
-    memcpy( p, hash, hashlen );
+    memcpy(p, hash, hashlen);
     p += hashlen;
 
     /* Just a sanity-check, should be automatic
      * after the initial bounds check. */
-    if( p != dst + dst_len )
-    {
-        mbedtls_platform_zeroize( dst, dst_len );
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (p != dst + dst_len) {
+        mbedtls_platform_zeroize(dst, dst_len);
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Do an RSA operation to sign the message digest
  */
-int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx,
-                               int (*f_rng)(void *, unsigned char *, size_t),
-                               void *p_rng,
-                               int mode,
-                               mbedtls_md_type_t md_alg,
-                               unsigned int hashlen,
-                               const unsigned char *hash,
-                               unsigned char *sig )
+int mbedtls_rsa_rsassa_pkcs1_v15_sign(mbedtls_rsa_context *ctx,
+                                      int (*f_rng)(void *, unsigned char *, size_t),
+                                      void *p_rng,
+                                      int mode,
+                                      mbedtls_md_type_t md_alg,
+                                      unsigned int hashlen,
+                                      const unsigned char *hash,
+                                      unsigned char *sig)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *sig_try = NULL, *verif = NULL;
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
-    RSA_VALIDATE_RET( sig != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
+    RSA_VALIDATE_RET(sig != NULL);
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     /*
      * Prepare PKCS1-v1.5 encoding (padding and hash identifier)
      */
 
-    if( ( ret = rsa_rsassa_pkcs1_v15_encode( md_alg, hashlen, hash,
-                                             ctx->len, sig ) ) != 0 )
-        return( ret );
+    if ((ret = rsa_rsassa_pkcs1_v15_encode(md_alg, hashlen, hash,
+                                           ctx->len, sig)) != 0) {
+        return ret;
+    }
 
     /*
      * Call respective RSA primitive
      */
 
-    if( mode == MBEDTLS_RSA_PUBLIC )
-    {
+    if (mode == MBEDTLS_RSA_PUBLIC) {
         /* Skip verification on a public key operation */
-        return( mbedtls_rsa_public( ctx, sig, sig ) );
+        return mbedtls_rsa_public(ctx, sig, sig);
     }
 
     /* Private key operation
@@ -1912,76 +1938,75 @@
      * temporary buffer and check it before returning it.
      */
 
-    sig_try = mbedtls_calloc( 1, ctx->len );
-    if( sig_try == NULL )
-        return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
-
-    verif = mbedtls_calloc( 1, ctx->len );
-    if( verif == NULL )
-    {
-        mbedtls_free( sig_try );
-        return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
+    sig_try = mbedtls_calloc(1, ctx->len);
+    if (sig_try == NULL) {
+        return MBEDTLS_ERR_MPI_ALLOC_FAILED;
     }
 
-    MBEDTLS_MPI_CHK( mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig_try ) );
-    MBEDTLS_MPI_CHK( mbedtls_rsa_public( ctx, sig_try, verif ) );
+    verif = mbedtls_calloc(1, ctx->len);
+    if (verif == NULL) {
+        mbedtls_free(sig_try);
+        return MBEDTLS_ERR_MPI_ALLOC_FAILED;
+    }
 
-    if( mbedtls_ct_memcmp( verif, sig, ctx->len ) != 0 )
-    {
+    MBEDTLS_MPI_CHK(mbedtls_rsa_private(ctx, f_rng, p_rng, sig, sig_try));
+    MBEDTLS_MPI_CHK(mbedtls_rsa_public(ctx, sig_try, verif));
+
+    if (mbedtls_ct_memcmp(verif, sig, ctx->len) != 0) {
         ret = MBEDTLS_ERR_RSA_PRIVATE_FAILED;
         goto cleanup;
     }
 
-    memcpy( sig, sig_try, ctx->len );
+    memcpy(sig, sig_try, ctx->len);
 
 cleanup:
-    mbedtls_platform_zeroize( sig_try, ctx->len );
-    mbedtls_platform_zeroize( verif, ctx->len );
-    mbedtls_free( sig_try );
-    mbedtls_free( verif );
+    mbedtls_platform_zeroize(sig_try, ctx->len);
+    mbedtls_platform_zeroize(verif, ctx->len);
+    mbedtls_free(sig_try);
+    mbedtls_free(verif);
 
-    if( ret != 0 )
-        memset( sig, '!', ctx->len );
-    return( ret );
+    if (ret != 0) {
+        memset(sig, '!', ctx->len);
+    }
+    return ret;
 }
 #endif /* MBEDTLS_PKCS1_V15 */
 
 /*
  * Do an RSA operation to sign the message digest
  */
-int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx,
-                    int (*f_rng)(void *, unsigned char *, size_t),
-                    void *p_rng,
-                    int mode,
-                    mbedtls_md_type_t md_alg,
-                    unsigned int hashlen,
-                    const unsigned char *hash,
-                    unsigned char *sig )
+int mbedtls_rsa_pkcs1_sign(mbedtls_rsa_context *ctx,
+                           int (*f_rng)(void *, unsigned char *, size_t),
+                           void *p_rng,
+                           int mode,
+                           mbedtls_md_type_t md_alg,
+                           unsigned int hashlen,
+                           const unsigned char *hash,
+                           unsigned char *sig)
 {
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
-    RSA_VALIDATE_RET( sig != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
+    RSA_VALIDATE_RET(sig != NULL);
 
-    switch( ctx->padding )
-    {
+    switch (ctx->padding) {
 #if defined(MBEDTLS_PKCS1_V15)
         case MBEDTLS_RSA_PKCS_V15:
-            return mbedtls_rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, mode, md_alg,
-                                              hashlen, hash, sig );
+            return mbedtls_rsa_rsassa_pkcs1_v15_sign(ctx, f_rng, p_rng, mode, md_alg,
+                                                     hashlen, hash, sig);
 #endif
 
 #if defined(MBEDTLS_PKCS1_V21)
         case MBEDTLS_RSA_PKCS_V21:
-            return mbedtls_rsa_rsassa_pss_sign( ctx, f_rng, p_rng, mode, md_alg,
-                                        hashlen, hash, sig );
+            return mbedtls_rsa_rsassa_pss_sign(ctx, f_rng, p_rng, mode, md_alg,
+                                               hashlen, hash, sig);
 #endif
 
         default:
-            return( MBEDTLS_ERR_RSA_INVALID_PADDING );
+            return MBEDTLS_ERR_RSA_INVALID_PADDING;
     }
 }
 
@@ -1989,16 +2014,16 @@
 /*
  * Implementation of the PKCS#1 v2.1 RSASSA-PSS-VERIFY function
  */
-int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx,
-                               int (*f_rng)(void *, unsigned char *, size_t),
-                               void *p_rng,
-                               int mode,
-                               mbedtls_md_type_t md_alg,
-                               unsigned int hashlen,
-                               const unsigned char *hash,
-                               mbedtls_md_type_t mgf1_hash_id,
-                               int expected_salt_len,
-                               const unsigned char *sig )
+int mbedtls_rsa_rsassa_pss_verify_ext(mbedtls_rsa_context *ctx,
+                                      int (*f_rng)(void *, unsigned char *, size_t),
+                                      void *p_rng,
+                                      int mode,
+                                      mbedtls_md_type_t md_alg,
+                                      unsigned int hashlen,
+                                      const unsigned char *hash,
+                                      mbedtls_md_type_t mgf1_hash_id,
+                                      int expected_salt_len,
+                                      const unsigned char *sig)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t siglen;
@@ -2012,95 +2037,102 @@
     mbedtls_md_context_t md_ctx;
     unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( sig != NULL );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(sig != NULL);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     siglen = ctx->len;
 
-    if( siglen < 16 || siglen > sizeof( buf ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (siglen < 16 || siglen > sizeof(buf)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
-    ret = ( mode == MBEDTLS_RSA_PUBLIC )
-          ? mbedtls_rsa_public(  ctx, sig, buf )
-          : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, buf );
+    ret = (mode == MBEDTLS_RSA_PUBLIC)
+          ? mbedtls_rsa_public(ctx, sig, buf)
+          : mbedtls_rsa_private(ctx, f_rng, p_rng, sig, buf);
 
-    if( ret != 0 )
-        return( ret );
+    if (ret != 0) {
+        return ret;
+    }
 
     p = buf;
 
-    if( buf[siglen - 1] != 0xBC )
-        return( MBEDTLS_ERR_RSA_INVALID_PADDING );
-
-    if( md_alg != MBEDTLS_MD_NONE )
-    {
-        /* Gather length of hash to sign */
-        md_info = mbedtls_md_info_from_type( md_alg );
-        if( md_info == NULL )
-            return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
-
-        hashlen = mbedtls_md_get_size( md_info );
+    if (buf[siglen - 1] != 0xBC) {
+        return MBEDTLS_ERR_RSA_INVALID_PADDING;
     }
 
-    md_info = mbedtls_md_info_from_type( mgf1_hash_id );
-    if( md_info == NULL )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (md_alg != MBEDTLS_MD_NONE) {
+        /* Gather length of hash to sign */
+        md_info = mbedtls_md_info_from_type(md_alg);
+        if (md_info == NULL) {
+            return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+        }
 
-    hlen = mbedtls_md_get_size( md_info );
+        hashlen = mbedtls_md_get_size(md_info);
+    }
 
-    memset( zeros, 0, 8 );
+    md_info = mbedtls_md_info_from_type(mgf1_hash_id);
+    if (md_info == NULL) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
+
+    hlen = mbedtls_md_get_size(md_info);
+
+    memset(zeros, 0, 8);
 
     /*
      * Note: EMSA-PSS verification is over the length of N - 1 bits
      */
-    msb = mbedtls_mpi_bitlen( &ctx->N ) - 1;
+    msb = mbedtls_mpi_bitlen(&ctx->N) - 1;
 
-    if( buf[0] >> ( 8 - siglen * 8 + msb ) )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (buf[0] >> (8 - siglen * 8 + msb)) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     /* Compensate for boundary condition when applying mask */
-    if( msb % 8 == 0 )
-    {
+    if (msb % 8 == 0) {
         p++;
         siglen -= 1;
     }
 
-    if( siglen < hlen + 2 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (siglen < hlen + 2) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
     hash_start = p + siglen - hlen - 1;
 
-    mbedtls_md_init( &md_ctx );
-    if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
+    mbedtls_md_init(&md_ctx);
+    if ((ret = mbedtls_md_setup(&md_ctx, md_info, 0)) != 0) {
         goto exit;
+    }
 
-    ret = mgf_mask( p, siglen - hlen - 1, hash_start, hlen, &md_ctx );
-    if( ret != 0 )
+    ret = mgf_mask(p, siglen - hlen - 1, hash_start, hlen, &md_ctx);
+    if (ret != 0) {
         goto exit;
+    }
 
-    buf[0] &= 0xFF >> ( siglen * 8 - msb );
+    buf[0] &= 0xFF >> (siglen * 8 - msb);
 
-    while( p < hash_start - 1 && *p == 0 )
+    while (p < hash_start - 1 && *p == 0) {
         p++;
+    }
 
-    if( *p++ != 0x01 )
-    {
+    if (*p++ != 0x01) {
         ret = MBEDTLS_ERR_RSA_INVALID_PADDING;
         goto exit;
     }
 
     observed_salt_len = hash_start - p;
 
-    if( expected_salt_len != MBEDTLS_RSA_SALT_LEN_ANY &&
-        observed_salt_len != (size_t) expected_salt_len )
-    {
+    if (expected_salt_len != MBEDTLS_RSA_SALT_LEN_ANY &&
+        observed_salt_len != (size_t) expected_salt_len) {
         ret = MBEDTLS_ERR_RSA_INVALID_PADDING;
         goto exit;
     }
@@ -2108,63 +2140,67 @@
     /*
      * Generate H = Hash( M' )
      */
-    ret = mbedtls_md_starts( &md_ctx );
-    if ( ret != 0 )
+    ret = mbedtls_md_starts(&md_ctx);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_update( &md_ctx, zeros, 8 );
-    if ( ret != 0 )
+    }
+    ret = mbedtls_md_update(&md_ctx, zeros, 8);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_update( &md_ctx, hash, hashlen );
-    if ( ret != 0 )
+    }
+    ret = mbedtls_md_update(&md_ctx, hash, hashlen);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_update( &md_ctx, p, observed_salt_len );
-    if ( ret != 0 )
+    }
+    ret = mbedtls_md_update(&md_ctx, p, observed_salt_len);
+    if (ret != 0) {
         goto exit;
-    ret = mbedtls_md_finish( &md_ctx, result );
-    if ( ret != 0 )
+    }
+    ret = mbedtls_md_finish(&md_ctx, result);
+    if (ret != 0) {
         goto exit;
+    }
 
-    if( memcmp( hash_start, result, hlen ) != 0 )
-    {
+    if (memcmp(hash_start, result, hlen) != 0) {
         ret = MBEDTLS_ERR_RSA_VERIFY_FAILED;
         goto exit;
     }
 
 exit:
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Simplified PKCS#1 v2.1 RSASSA-PSS-VERIFY function
  */
-int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx,
-                           int (*f_rng)(void *, unsigned char *, size_t),
-                           void *p_rng,
-                           int mode,
-                           mbedtls_md_type_t md_alg,
-                           unsigned int hashlen,
-                           const unsigned char *hash,
-                           const unsigned char *sig )
+int mbedtls_rsa_rsassa_pss_verify(mbedtls_rsa_context *ctx,
+                                  int (*f_rng)(void *, unsigned char *, size_t),
+                                  void *p_rng,
+                                  int mode,
+                                  mbedtls_md_type_t md_alg,
+                                  unsigned int hashlen,
+                                  const unsigned char *hash,
+                                  const unsigned char *sig)
 {
     mbedtls_md_type_t mgf1_hash_id;
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( sig != NULL );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(sig != NULL);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
 
-    mgf1_hash_id = ( ctx->hash_id != MBEDTLS_MD_NONE )
+    mgf1_hash_id = (ctx->hash_id != MBEDTLS_MD_NONE)
                              ? (mbedtls_md_type_t) ctx->hash_id
                              : md_alg;
 
-    return( mbedtls_rsa_rsassa_pss_verify_ext( ctx, f_rng, p_rng, mode,
-                                       md_alg, hashlen, hash,
-                                       mgf1_hash_id, MBEDTLS_RSA_SALT_LEN_ANY,
-                                       sig ) );
+    return mbedtls_rsa_rsassa_pss_verify_ext(ctx, f_rng, p_rng, mode,
+                                             md_alg, hashlen, hash,
+                                             mgf1_hash_id, MBEDTLS_RSA_SALT_LEN_ANY,
+                                             sig);
 
 }
 #endif /* MBEDTLS_PKCS1_V21 */
@@ -2173,196 +2209,195 @@
 /*
  * Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-v1_5-VERIFY function
  */
-int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx,
-                                 int (*f_rng)(void *, unsigned char *, size_t),
-                                 void *p_rng,
-                                 int mode,
-                                 mbedtls_md_type_t md_alg,
-                                 unsigned int hashlen,
-                                 const unsigned char *hash,
-                                 const unsigned char *sig )
+int mbedtls_rsa_rsassa_pkcs1_v15_verify(mbedtls_rsa_context *ctx,
+                                        int (*f_rng)(void *, unsigned char *, size_t),
+                                        void *p_rng,
+                                        int mode,
+                                        mbedtls_md_type_t md_alg,
+                                        unsigned int hashlen,
+                                        const unsigned char *hash,
+                                        const unsigned char *sig)
 {
     int ret = 0;
     size_t sig_len;
     unsigned char *encoded = NULL, *encoded_expected = NULL;
 
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( sig != NULL );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(sig != NULL);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
 
     sig_len = ctx->len;
 
-    if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
-        return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
+    if (mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15) {
+        return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
+    }
 
     /*
      * Prepare expected PKCS1 v1.5 encoding of hash.
      */
 
-    if( ( encoded          = mbedtls_calloc( 1, sig_len ) ) == NULL ||
-        ( encoded_expected = mbedtls_calloc( 1, sig_len ) ) == NULL )
-    {
+    if ((encoded          = mbedtls_calloc(1, sig_len)) == NULL ||
+        (encoded_expected = mbedtls_calloc(1, sig_len)) == NULL) {
         ret = MBEDTLS_ERR_MPI_ALLOC_FAILED;
         goto cleanup;
     }
 
-    if( ( ret = rsa_rsassa_pkcs1_v15_encode( md_alg, hashlen, hash, sig_len,
-                                             encoded_expected ) ) != 0 )
+    if ((ret = rsa_rsassa_pkcs1_v15_encode(md_alg, hashlen, hash, sig_len,
+                                           encoded_expected)) != 0) {
         goto cleanup;
+    }
 
     /*
      * Apply RSA primitive to get what should be PKCS1 encoded hash.
      */
 
-    ret = ( mode == MBEDTLS_RSA_PUBLIC )
-          ? mbedtls_rsa_public(  ctx, sig, encoded )
-          : mbedtls_rsa_private( ctx, f_rng, p_rng, sig, encoded );
-    if( ret != 0 )
+    ret = (mode == MBEDTLS_RSA_PUBLIC)
+          ? mbedtls_rsa_public(ctx, sig, encoded)
+          : mbedtls_rsa_private(ctx, f_rng, p_rng, sig, encoded);
+    if (ret != 0) {
         goto cleanup;
+    }
 
     /*
      * Compare
      */
 
-    if( ( ret = mbedtls_ct_memcmp( encoded, encoded_expected,
-                                              sig_len ) ) != 0 )
-    {
+    if ((ret = mbedtls_ct_memcmp(encoded, encoded_expected,
+                                 sig_len)) != 0) {
         ret = MBEDTLS_ERR_RSA_VERIFY_FAILED;
         goto cleanup;
     }
 
 cleanup:
 
-    if( encoded != NULL )
-    {
-        mbedtls_platform_zeroize( encoded, sig_len );
-        mbedtls_free( encoded );
+    if (encoded != NULL) {
+        mbedtls_platform_zeroize(encoded, sig_len);
+        mbedtls_free(encoded);
     }
 
-    if( encoded_expected != NULL )
-    {
-        mbedtls_platform_zeroize( encoded_expected, sig_len );
-        mbedtls_free( encoded_expected );
+    if (encoded_expected != NULL) {
+        mbedtls_platform_zeroize(encoded_expected, sig_len);
+        mbedtls_free(encoded_expected);
     }
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_PKCS1_V15 */
 
 /*
  * Do an RSA operation and check the message digest
  */
-int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx,
-                      int (*f_rng)(void *, unsigned char *, size_t),
-                      void *p_rng,
-                      int mode,
-                      mbedtls_md_type_t md_alg,
-                      unsigned int hashlen,
-                      const unsigned char *hash,
-                      const unsigned char *sig )
+int mbedtls_rsa_pkcs1_verify(mbedtls_rsa_context *ctx,
+                             int (*f_rng)(void *, unsigned char *, size_t),
+                             void *p_rng,
+                             int mode,
+                             mbedtls_md_type_t md_alg,
+                             unsigned int hashlen,
+                             const unsigned char *hash,
+                             const unsigned char *sig)
 {
-    RSA_VALIDATE_RET( ctx != NULL );
-    RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
-                      mode == MBEDTLS_RSA_PUBLIC );
-    RSA_VALIDATE_RET( sig != NULL );
-    RSA_VALIDATE_RET( ( md_alg  == MBEDTLS_MD_NONE &&
-                        hashlen == 0 ) ||
-                      hash != NULL );
+    RSA_VALIDATE_RET(ctx != NULL);
+    RSA_VALIDATE_RET(mode == MBEDTLS_RSA_PRIVATE ||
+                     mode == MBEDTLS_RSA_PUBLIC);
+    RSA_VALIDATE_RET(sig != NULL);
+    RSA_VALIDATE_RET((md_alg  == MBEDTLS_MD_NONE &&
+                      hashlen == 0) ||
+                     hash != NULL);
 
-    switch( ctx->padding )
-    {
+    switch (ctx->padding) {
 #if defined(MBEDTLS_PKCS1_V15)
         case MBEDTLS_RSA_PKCS_V15:
-            return mbedtls_rsa_rsassa_pkcs1_v15_verify( ctx, f_rng, p_rng, mode, md_alg,
-                                                hashlen, hash, sig );
+            return mbedtls_rsa_rsassa_pkcs1_v15_verify(ctx, f_rng, p_rng, mode, md_alg,
+                                                       hashlen, hash, sig);
 #endif
 
 #if defined(MBEDTLS_PKCS1_V21)
         case MBEDTLS_RSA_PKCS_V21:
-            return mbedtls_rsa_rsassa_pss_verify( ctx, f_rng, p_rng, mode, md_alg,
-                                          hashlen, hash, sig );
+            return mbedtls_rsa_rsassa_pss_verify(ctx, f_rng, p_rng, mode, md_alg,
+                                                 hashlen, hash, sig);
 #endif
 
         default:
-            return( MBEDTLS_ERR_RSA_INVALID_PADDING );
+            return MBEDTLS_ERR_RSA_INVALID_PADDING;
     }
 }
 
 /*
  * Copy the components of an RSA key
  */
-int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src )
+int mbedtls_rsa_copy(mbedtls_rsa_context *dst, const mbedtls_rsa_context *src)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    RSA_VALIDATE_RET( dst != NULL );
-    RSA_VALIDATE_RET( src != NULL );
+    RSA_VALIDATE_RET(dst != NULL);
+    RSA_VALIDATE_RET(src != NULL);
 
     dst->len = src->len;
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->N, &src->N ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->E, &src->E ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->N, &src->N));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->E, &src->E));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->D, &src->D ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->P, &src->P ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Q, &src->Q ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->D, &src->D));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->P, &src->P));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->Q, &src->Q));
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DP, &src->DP ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DQ, &src->DQ ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->QP, &src->QP ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RP, &src->RP ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RQ, &src->RQ ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->DP, &src->DP));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->DQ, &src->DQ));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->QP, &src->QP));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->RP, &src->RP));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->RQ, &src->RQ));
 #endif
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RN, &src->RN ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->RN, &src->RN));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vi, &src->Vi ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vf, &src->Vf ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->Vi, &src->Vi));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&dst->Vf, &src->Vf));
 
     dst->padding = src->padding;
     dst->hash_id = src->hash_id;
 
 cleanup:
-    if( ret != 0 )
-        mbedtls_rsa_free( dst );
+    if (ret != 0) {
+        mbedtls_rsa_free(dst);
+    }
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Free the components of an RSA key
  */
-void mbedtls_rsa_free( mbedtls_rsa_context *ctx )
+void mbedtls_rsa_free(mbedtls_rsa_context *ctx)
 {
-    if( ctx == NULL )
+    if (ctx == NULL) {
         return;
+    }
 
-    mbedtls_mpi_free( &ctx->Vi );
-    mbedtls_mpi_free( &ctx->Vf );
-    mbedtls_mpi_free( &ctx->RN );
-    mbedtls_mpi_free( &ctx->D  );
-    mbedtls_mpi_free( &ctx->Q  );
-    mbedtls_mpi_free( &ctx->P  );
-    mbedtls_mpi_free( &ctx->E  );
-    mbedtls_mpi_free( &ctx->N  );
+    mbedtls_mpi_free(&ctx->Vi);
+    mbedtls_mpi_free(&ctx->Vf);
+    mbedtls_mpi_free(&ctx->RN);
+    mbedtls_mpi_free(&ctx->D);
+    mbedtls_mpi_free(&ctx->Q);
+    mbedtls_mpi_free(&ctx->P);
+    mbedtls_mpi_free(&ctx->E);
+    mbedtls_mpi_free(&ctx->N);
 
 #if !defined(MBEDTLS_RSA_NO_CRT)
-    mbedtls_mpi_free( &ctx->RQ );
-    mbedtls_mpi_free( &ctx->RP );
-    mbedtls_mpi_free( &ctx->QP );
-    mbedtls_mpi_free( &ctx->DQ );
-    mbedtls_mpi_free( &ctx->DP );
+    mbedtls_mpi_free(&ctx->RQ);
+    mbedtls_mpi_free(&ctx->RP);
+    mbedtls_mpi_free(&ctx->QP);
+    mbedtls_mpi_free(&ctx->DQ);
+    mbedtls_mpi_free(&ctx->DP);
 #endif /* MBEDTLS_RSA_NO_CRT */
 
 #if defined(MBEDTLS_THREADING_C)
     /* Free the mutex, but only if it hasn't been freed already. */
-    if( ctx->ver != 0 )
-    {
-        mbedtls_mutex_free( &ctx->mutex );
+    if (ctx->ver != 0) {
+        mbedtls_mutex_free(&ctx->mutex);
         ctx->ver = 0;
     }
 #endif
@@ -2414,31 +2449,34 @@
                 "\x11\x22\x33\x0A\x0B\x0C\xCC\xDD\xDD\xDD\xDD\xDD"
 
 #if defined(MBEDTLS_PKCS1_V15)
-static int myrand( void *rng_state, unsigned char *output, size_t len )
+static int myrand(void *rng_state, unsigned char *output, size_t len)
 {
 #if !defined(__OpenBSD__) && !defined(__NetBSD__)
     size_t i;
 
-    if( rng_state != NULL )
+    if (rng_state != NULL) {
         rng_state  = NULL;
+    }
 
-    for( i = 0; i < len; ++i )
+    for (i = 0; i < len; ++i) {
         output[i] = rand();
+    }
 #else
-    if( rng_state != NULL )
+    if (rng_state != NULL) {
         rng_state = NULL;
+    }
 
-    arc4random_buf( output, len );
+    arc4random_buf(output, len);
 #endif /* !OpenBSD && !NetBSD */
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_PKCS1_V15 */
 
 /*
  * Checkup routine
  */
-int mbedtls_rsa_self_test( int verbose )
+int mbedtls_rsa_self_test(int verbose)
 {
     int ret = 0;
 #if defined(MBEDTLS_PKCS1_V15)
@@ -2453,128 +2491,136 @@
 
     mbedtls_mpi K;
 
-    mbedtls_mpi_init( &K );
-    mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
+    mbedtls_mpi_init(&K);
+    mbedtls_rsa_init(&rsa, MBEDTLS_RSA_PKCS_V15, 0);
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_N  ) );
-    MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, &K, NULL, NULL, NULL, NULL ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_P  ) );
-    MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, &K, NULL, NULL, NULL ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_Q  ) );
-    MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, NULL, &K, NULL, NULL ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_D  ) );
-    MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, NULL, NULL, &K, NULL ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_E  ) );
-    MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, NULL, NULL, NULL, &K ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&K, 16, RSA_N));
+    MBEDTLS_MPI_CHK(mbedtls_rsa_import(&rsa, &K, NULL, NULL, NULL, NULL));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&K, 16, RSA_P));
+    MBEDTLS_MPI_CHK(mbedtls_rsa_import(&rsa, NULL, &K, NULL, NULL, NULL));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&K, 16, RSA_Q));
+    MBEDTLS_MPI_CHK(mbedtls_rsa_import(&rsa, NULL, NULL, &K, NULL, NULL));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&K, 16, RSA_D));
+    MBEDTLS_MPI_CHK(mbedtls_rsa_import(&rsa, NULL, NULL, NULL, &K, NULL));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&K, 16, RSA_E));
+    MBEDTLS_MPI_CHK(mbedtls_rsa_import(&rsa, NULL, NULL, NULL, NULL, &K));
 
-    MBEDTLS_MPI_CHK( mbedtls_rsa_complete( &rsa ) );
+    MBEDTLS_MPI_CHK(mbedtls_rsa_complete(&rsa));
 
-    if( verbose != 0 )
-        mbedtls_printf( "  RSA key validation: " );
+    if (verbose != 0) {
+        mbedtls_printf("  RSA key validation: ");
+    }
 
-    if( mbedtls_rsa_check_pubkey(  &rsa ) != 0 ||
-        mbedtls_rsa_check_privkey( &rsa ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_rsa_check_pubkey(&rsa) != 0 ||
+        mbedtls_rsa_check_privkey(&rsa) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
 
         ret = 1;
         goto cleanup;
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n  PKCS#1 encryption : " );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n  PKCS#1 encryption : ");
+    }
 
-    memcpy( rsa_plaintext, RSA_PT, PT_LEN );
+    memcpy(rsa_plaintext, RSA_PT, PT_LEN);
 
-    if( mbedtls_rsa_pkcs1_encrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PUBLIC,
-                                   PT_LEN, rsa_plaintext,
-                                   rsa_ciphertext ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_rsa_pkcs1_encrypt(&rsa, myrand, NULL, MBEDTLS_RSA_PUBLIC,
+                                  PT_LEN, rsa_plaintext,
+                                  rsa_ciphertext) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
 
         ret = 1;
         goto cleanup;
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n  PKCS#1 decryption : " );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n  PKCS#1 decryption : ");
+    }
 
-    if( mbedtls_rsa_pkcs1_decrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE,
-                                   &len, rsa_ciphertext, rsa_decrypted,
-                                   sizeof(rsa_decrypted) ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_rsa_pkcs1_decrypt(&rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE,
+                                  &len, rsa_ciphertext, rsa_decrypted,
+                                  sizeof(rsa_decrypted)) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
 
         ret = 1;
         goto cleanup;
     }
 
-    if( memcmp( rsa_decrypted, rsa_plaintext, len ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (memcmp(rsa_decrypted, rsa_plaintext, len) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
 
         ret = 1;
         goto cleanup;
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n");
+    }
 
 #if defined(MBEDTLS_SHA1_C)
-    if( verbose != 0 )
-        mbedtls_printf( "  PKCS#1 data sign  : " );
-
-    if( mbedtls_sha1_ret( rsa_plaintext, PT_LEN, sha1sum ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
-
-        return( 1 );
+    if (verbose != 0) {
+        mbedtls_printf("  PKCS#1 data sign  : ");
     }
 
-    if( mbedtls_rsa_pkcs1_sign( &rsa, myrand, NULL,
-                                MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA1, 0,
-                                sha1sum, rsa_ciphertext ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_sha1_ret(rsa_plaintext, PT_LEN, sha1sum) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
+
+        return 1;
+    }
+
+    if (mbedtls_rsa_pkcs1_sign(&rsa, myrand, NULL,
+                               MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA1, 0,
+                               sha1sum, rsa_ciphertext) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
 
         ret = 1;
         goto cleanup;
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n  PKCS#1 sig. verify: " );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n  PKCS#1 sig. verify: ");
+    }
 
-    if( mbedtls_rsa_pkcs1_verify( &rsa, NULL, NULL,
-                                  MBEDTLS_RSA_PUBLIC, MBEDTLS_MD_SHA1, 0,
-                                  sha1sum, rsa_ciphertext ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_rsa_pkcs1_verify(&rsa, NULL, NULL,
+                                 MBEDTLS_RSA_PUBLIC, MBEDTLS_MD_SHA1, 0,
+                                 sha1sum, rsa_ciphertext) != 0) {
+        if (verbose != 0) {
+            mbedtls_printf("failed\n");
+        }
 
         ret = 1;
         goto cleanup;
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n");
+    }
 #endif /* MBEDTLS_SHA1_C */
 
-    if( verbose != 0 )
-        mbedtls_printf( "\n" );
+    if (verbose != 0) {
+        mbedtls_printf("\n");
+    }
 
 cleanup:
-    mbedtls_mpi_free( &K );
-    mbedtls_rsa_free( &rsa );
+    mbedtls_mpi_free(&K);
+    mbedtls_rsa_free(&rsa);
 #else /* MBEDTLS_PKCS1_V15 */
     ((void) verbose);
 #endif /* MBEDTLS_PKCS1_V15 */
-    return( ret );
+    return ret;
 }
 
 #endif /* MBEDTLS_SELF_TEST */