diff --git a/library/bignum.c b/library/bignum.c
index 62eb007..9bc1c2d 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -49,25 +49,25 @@
 
 #include "mbedtls/platform.h"
 
-#define MPI_VALIDATE_RET( cond )                                       \
-    MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_MPI_BAD_INPUT_DATA )
-#define MPI_VALIDATE( cond )                                           \
-    MBEDTLS_INTERNAL_VALIDATE( cond )
+#define MPI_VALIDATE_RET(cond)                                       \
+    MBEDTLS_INTERNAL_VALIDATE_RET(cond, MBEDTLS_ERR_MPI_BAD_INPUT_DATA)
+#define MPI_VALIDATE(cond)                                           \
+    MBEDTLS_INTERNAL_VALIDATE(cond)
 
-#define MPI_SIZE_T_MAX  ( (size_t) -1 ) /* SIZE_T_MAX is not standard */
+#define MPI_SIZE_T_MAX  ((size_t) -1)   /* SIZE_T_MAX is not standard */
 
 /* Implementation that should never be optimized out by the compiler */
-static void mbedtls_mpi_zeroize( mbedtls_mpi_uint *v, size_t n )
+static void mbedtls_mpi_zeroize(mbedtls_mpi_uint *v, size_t n)
 {
-    mbedtls_platform_zeroize( v, ciL * n );
+    mbedtls_platform_zeroize(v, ciL * n);
 }
 
 /*
  * Initialize one MPI
  */
-void mbedtls_mpi_init( mbedtls_mpi *X )
+void mbedtls_mpi_init(mbedtls_mpi *X)
 {
-    MPI_VALIDATE( X != NULL );
+    MPI_VALIDATE(X != NULL);
 
     X->s = 1;
     X->n = 0;
@@ -77,15 +77,15 @@
 /*
  * Unallocate one MPI
  */
-void mbedtls_mpi_free( mbedtls_mpi *X )
+void mbedtls_mpi_free(mbedtls_mpi *X)
 {
-    if( X == NULL )
+    if (X == NULL) {
         return;
+    }
 
-    if( X->p != NULL )
-    {
-        mbedtls_mpi_zeroize( X->p, X->n );
-        mbedtls_free( X->p );
+    if (X->p != NULL) {
+        mbedtls_mpi_zeroize(X->p, X->n);
+        mbedtls_free(X->p);
     }
 
     X->s = 1;
@@ -96,93 +96,93 @@
 /*
  * Enlarge to the specified number of limbs
  */
-int mbedtls_mpi_grow( mbedtls_mpi *X, size_t nblimbs )
+int mbedtls_mpi_grow(mbedtls_mpi *X, size_t nblimbs)
 {
     mbedtls_mpi_uint *p;
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    if( nblimbs > MBEDTLS_MPI_MAX_LIMBS )
-        return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
+    if (nblimbs > MBEDTLS_MPI_MAX_LIMBS) {
+        return MBEDTLS_ERR_MPI_ALLOC_FAILED;
+    }
 
-    if( X->n < nblimbs )
-    {
-        if( ( p = (mbedtls_mpi_uint*)mbedtls_calloc( nblimbs, ciL ) ) == NULL )
-            return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
+    if (X->n < nblimbs) {
+        if ((p = (mbedtls_mpi_uint *) mbedtls_calloc(nblimbs, ciL)) == NULL) {
+            return MBEDTLS_ERR_MPI_ALLOC_FAILED;
+        }
 
-        if( X->p != NULL )
-        {
-            memcpy( p, X->p, X->n * ciL );
-            mbedtls_mpi_zeroize( X->p, X->n );
-            mbedtls_free( X->p );
+        if (X->p != NULL) {
+            memcpy(p, X->p, X->n * ciL);
+            mbedtls_mpi_zeroize(X->p, X->n);
+            mbedtls_free(X->p);
         }
 
         X->n = nblimbs;
         X->p = p;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Resize down as much as possible,
  * while keeping at least the specified number of limbs
  */
-int mbedtls_mpi_shrink( mbedtls_mpi *X, size_t nblimbs )
+int mbedtls_mpi_shrink(mbedtls_mpi *X, size_t nblimbs)
 {
     mbedtls_mpi_uint *p;
     size_t i;
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    if( nblimbs > MBEDTLS_MPI_MAX_LIMBS )
-        return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
+    if (nblimbs > MBEDTLS_MPI_MAX_LIMBS) {
+        return MBEDTLS_ERR_MPI_ALLOC_FAILED;
+    }
 
     /* Actually resize up if there are currently fewer than nblimbs limbs. */
-    if( X->n <= nblimbs )
-        return( mbedtls_mpi_grow( X, nblimbs ) );
+    if (X->n <= nblimbs) {
+        return mbedtls_mpi_grow(X, nblimbs);
+    }
     /* After this point, then X->n > nblimbs and in particular X->n > 0. */
 
-    for( i = X->n - 1; i > 0; i-- )
-        if( X->p[i] != 0 )
+    for (i = X->n - 1; i > 0; i--) {
+        if (X->p[i] != 0) {
             break;
+        }
+    }
     i++;
 
-    if( i < nblimbs )
+    if (i < nblimbs) {
         i = nblimbs;
+    }
 
-    if( ( p = (mbedtls_mpi_uint*)mbedtls_calloc( i, ciL ) ) == NULL )
-        return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
+    if ((p = (mbedtls_mpi_uint *) mbedtls_calloc(i, ciL)) == NULL) {
+        return MBEDTLS_ERR_MPI_ALLOC_FAILED;
+    }
 
-    if( X->p != NULL )
-    {
-        memcpy( p, X->p, i * ciL );
-        mbedtls_mpi_zeroize( X->p, X->n );
-        mbedtls_free( X->p );
+    if (X->p != NULL) {
+        memcpy(p, X->p, i * ciL);
+        mbedtls_mpi_zeroize(X->p, X->n);
+        mbedtls_free(X->p);
     }
 
     X->n = i;
     X->p = p;
 
-    return( 0 );
+    return 0;
 }
 
 /* Resize X to have exactly n limbs and set it to 0. */
-static int mbedtls_mpi_resize_clear( mbedtls_mpi *X, size_t limbs )
+static int mbedtls_mpi_resize_clear(mbedtls_mpi *X, size_t limbs)
 {
-    if( limbs == 0 )
-    {
-        mbedtls_mpi_free( X );
-        return( 0 );
-    }
-    else if( X->n == limbs )
-    {
-        memset( X->p, 0, limbs * ciL );
+    if (limbs == 0) {
+        mbedtls_mpi_free(X);
+        return 0;
+    } else if (X->n == limbs) {
+        memset(X->p, 0, limbs * ciL);
         X->s = 1;
-        return( 0 );
-    }
-    else
-    {
-        mbedtls_mpi_free( X );
-        return( mbedtls_mpi_grow( X, limbs ) );
+        return 0;
+    } else {
+        mbedtls_mpi_free(X);
+        return mbedtls_mpi_grow(X, limbs);
     }
 }
 
@@ -195,368 +195,374 @@
  * but some code in the bignum module relies on this property, for example
  * in mbedtls_mpi_exp_mod().
  */
-int mbedtls_mpi_copy( mbedtls_mpi *X, const mbedtls_mpi *Y )
+int mbedtls_mpi_copy(mbedtls_mpi *X, const mbedtls_mpi *Y)
 {
     int ret = 0;
     size_t i;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( Y != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(Y != NULL);
 
-    if( X == Y )
-        return( 0 );
-
-    if( Y->n == 0 )
-    {
-        if( X->n != 0 )
-        {
-            X->s = 1;
-            memset( X->p, 0, X->n * ciL );
-        }
-        return( 0 );
+    if (X == Y) {
+        return 0;
     }
 
-    for( i = Y->n - 1; i > 0; i-- )
-        if( Y->p[i] != 0 )
+    if (Y->n == 0) {
+        if (X->n != 0) {
+            X->s = 1;
+            memset(X->p, 0, X->n * ciL);
+        }
+        return 0;
+    }
+
+    for (i = Y->n - 1; i > 0; i--) {
+        if (Y->p[i] != 0) {
             break;
+        }
+    }
     i++;
 
     X->s = Y->s;
 
-    if( X->n < i )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i ) );
-    }
-    else
-    {
-        memset( X->p + i, 0, ( X->n - i ) * ciL );
+    if (X->n < i) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, i));
+    } else {
+        memset(X->p + i, 0, (X->n - i) * ciL);
     }
 
-    memcpy( X->p, Y->p, i * ciL );
+    memcpy(X->p, Y->p, i * ciL);
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Swap the contents of X and Y
  */
-void mbedtls_mpi_swap( mbedtls_mpi *X, mbedtls_mpi *Y )
+void mbedtls_mpi_swap(mbedtls_mpi *X, mbedtls_mpi *Y)
 {
     mbedtls_mpi T;
-    MPI_VALIDATE( X != NULL );
-    MPI_VALIDATE( Y != NULL );
+    MPI_VALIDATE(X != NULL);
+    MPI_VALIDATE(Y != NULL);
 
-    memcpy( &T,  X, sizeof( mbedtls_mpi ) );
-    memcpy(  X,  Y, sizeof( mbedtls_mpi ) );
-    memcpy(  Y, &T, sizeof( mbedtls_mpi ) );
+    memcpy(&T,  X, sizeof(mbedtls_mpi));
+    memcpy(X,  Y, sizeof(mbedtls_mpi));
+    memcpy(Y, &T, sizeof(mbedtls_mpi));
 }
 
-static inline mbedtls_mpi_uint mpi_sint_abs( mbedtls_mpi_sint z )
+static inline mbedtls_mpi_uint mpi_sint_abs(mbedtls_mpi_sint z)
 {
-    if( z >= 0 )
-        return( z );
+    if (z >= 0) {
+        return z;
+    }
     /* Take care to handle the most negative value (-2^(biL-1)) correctly.
      * A naive -z would have undefined behavior.
      * Write this in a way that makes popular compilers happy (GCC, Clang,
      * MSVC). */
-    return( (mbedtls_mpi_uint) 0 - (mbedtls_mpi_uint) z );
+    return (mbedtls_mpi_uint) 0 - (mbedtls_mpi_uint) z;
 }
 
 /*
  * Set value from integer
  */
-int mbedtls_mpi_lset( mbedtls_mpi *X, mbedtls_mpi_sint z )
+int mbedtls_mpi_lset(mbedtls_mpi *X, mbedtls_mpi_sint z)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, 1 ) );
-    memset( X->p, 0, X->n * ciL );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, 1));
+    memset(X->p, 0, X->n * ciL);
 
-    X->p[0] = mpi_sint_abs( z );
-    X->s    = ( z < 0 ) ? -1 : 1;
+    X->p[0] = mpi_sint_abs(z);
+    X->s    = (z < 0) ? -1 : 1;
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Get a specific bit
  */
-int mbedtls_mpi_get_bit( const mbedtls_mpi *X, size_t pos )
+int mbedtls_mpi_get_bit(const mbedtls_mpi *X, size_t pos)
 {
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    if( X->n * biL <= pos )
-        return( 0 );
+    if (X->n * biL <= pos) {
+        return 0;
+    }
 
-    return( ( X->p[pos / biL] >> ( pos % biL ) ) & 0x01 );
+    return (X->p[pos / biL] >> (pos % biL)) & 0x01;
 }
 
 /*
  * Set a bit to a specific value of 0 or 1
  */
-int mbedtls_mpi_set_bit( mbedtls_mpi *X, size_t pos, unsigned char val )
+int mbedtls_mpi_set_bit(mbedtls_mpi *X, size_t pos, unsigned char val)
 {
     int ret = 0;
     size_t off = pos / biL;
     size_t idx = pos % biL;
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    if( val != 0 && val != 1 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
-
-    if( X->n * biL <= pos )
-    {
-        if( val == 0 )
-            return( 0 );
-
-        MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, off + 1 ) );
+    if (val != 0 && val != 1) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
     }
 
-    X->p[off] &= ~( (mbedtls_mpi_uint) 0x01 << idx );
+    if (X->n * biL <= pos) {
+        if (val == 0) {
+            return 0;
+        }
+
+        MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, off + 1));
+    }
+
+    X->p[off] &= ~((mbedtls_mpi_uint) 0x01 << idx);
     X->p[off] |= (mbedtls_mpi_uint) val << idx;
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Return the number of less significant zero-bits
  */
-size_t mbedtls_mpi_lsb( const mbedtls_mpi *X )
+size_t mbedtls_mpi_lsb(const mbedtls_mpi *X)
 {
     size_t i, j, count = 0;
-    MBEDTLS_INTERNAL_VALIDATE_RET( X != NULL, 0 );
+    MBEDTLS_INTERNAL_VALIDATE_RET(X != NULL, 0);
 
-    for( i = 0; i < X->n; i++ )
-        for( j = 0; j < biL; j++, count++ )
-            if( ( ( X->p[i] >> j ) & 1 ) != 0 )
-                return( count );
+    for (i = 0; i < X->n; i++) {
+        for (j = 0; j < biL; j++, count++) {
+            if (((X->p[i] >> j) & 1) != 0) {
+                return count;
+            }
+        }
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Return the number of bits
  */
-size_t mbedtls_mpi_bitlen( const mbedtls_mpi *X )
+size_t mbedtls_mpi_bitlen(const mbedtls_mpi *X)
 {
-    return( mbedtls_mpi_core_bitlen( X->p, X->n ) );
+    return mbedtls_mpi_core_bitlen(X->p, X->n);
 }
 
 /*
  * Return the total size in bytes
  */
-size_t mbedtls_mpi_size( const mbedtls_mpi *X )
+size_t mbedtls_mpi_size(const mbedtls_mpi *X)
 {
-    return( ( mbedtls_mpi_bitlen( X ) + 7 ) >> 3 );
+    return (mbedtls_mpi_bitlen(X) + 7) >> 3;
 }
 
 /*
  * Convert an ASCII character to digit value
  */
-static int mpi_get_digit( mbedtls_mpi_uint *d, int radix, char c )
+static int mpi_get_digit(mbedtls_mpi_uint *d, int radix, char c)
 {
     *d = 255;
 
-    if( c >= 0x30 && c <= 0x39 ) *d = c - 0x30;
-    if( c >= 0x41 && c <= 0x46 ) *d = c - 0x37;
-    if( c >= 0x61 && c <= 0x66 ) *d = c - 0x57;
+    if (c >= 0x30 && c <= 0x39) {
+        *d = c - 0x30;
+    }
+    if (c >= 0x41 && c <= 0x46) {
+        *d = c - 0x37;
+    }
+    if (c >= 0x61 && c <= 0x66) {
+        *d = c - 0x57;
+    }
 
-    if( *d >= (mbedtls_mpi_uint) radix )
-        return( MBEDTLS_ERR_MPI_INVALID_CHARACTER );
+    if (*d >= (mbedtls_mpi_uint) radix) {
+        return MBEDTLS_ERR_MPI_INVALID_CHARACTER;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Import from an ASCII string
  */
-int mbedtls_mpi_read_string( mbedtls_mpi *X, int radix, const char *s )
+int mbedtls_mpi_read_string(mbedtls_mpi *X, int radix, const char *s)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t i, j, slen, n;
     int sign = 1;
     mbedtls_mpi_uint d;
     mbedtls_mpi T;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( s != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(s != NULL);
 
-    if( radix < 2 || radix > 16 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
-
-    mbedtls_mpi_init( &T );
-
-    if( s[0] == 0 )
-    {
-        mbedtls_mpi_free( X );
-        return( 0 );
+    if (radix < 2 || radix > 16) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
     }
 
-    if( s[0] == '-' )
-    {
+    mbedtls_mpi_init(&T);
+
+    if (s[0] == 0) {
+        mbedtls_mpi_free(X);
+        return 0;
+    }
+
+    if (s[0] == '-') {
         ++s;
         sign = -1;
     }
 
-    slen = strlen( s );
+    slen = strlen(s);
 
-    if( radix == 16 )
-    {
-        if( slen > MPI_SIZE_T_MAX >> 2 )
-            return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
-
-        n = BITS_TO_LIMBS( slen << 2 );
-
-        MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, n ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) );
-
-        for( i = slen, j = 0; i > 0; i--, j++ )
-        {
-            MBEDTLS_MPI_CHK( mpi_get_digit( &d, radix, s[i - 1] ) );
-            X->p[j / ( 2 * ciL )] |= d << ( ( j % ( 2 * ciL ) ) << 2 );
+    if (radix == 16) {
+        if (slen > MPI_SIZE_T_MAX >> 2) {
+            return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
         }
-    }
-    else
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) );
 
-        for( i = 0; i < slen; i++ )
-        {
-            MBEDTLS_MPI_CHK( mpi_get_digit( &d, radix, s[i] ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T, X, radix ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, &T, d ) );
+        n = BITS_TO_LIMBS(slen << 2);
+
+        MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, n));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_lset(X, 0));
+
+        for (i = slen, j = 0; i > 0; i--, j++) {
+            MBEDTLS_MPI_CHK(mpi_get_digit(&d, radix, s[i - 1]));
+            X->p[j / (2 * ciL)] |= d << ((j % (2 * ciL)) << 2);
+        }
+    } else {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_lset(X, 0));
+
+        for (i = 0; i < slen; i++) {
+            MBEDTLS_MPI_CHK(mpi_get_digit(&d, radix, s[i]));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_mul_int(&T, X, radix));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(X, &T, d));
         }
     }
 
-    if( sign < 0 && mbedtls_mpi_bitlen( X ) != 0 )
+    if (sign < 0 && mbedtls_mpi_bitlen(X) != 0) {
         X->s = -1;
+    }
 
 cleanup:
 
-    mbedtls_mpi_free( &T );
+    mbedtls_mpi_free(&T);
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Helper to write the digits high-order first.
  */
-static int mpi_write_hlp( mbedtls_mpi *X, int radix,
-                          char **p, const size_t buflen )
+static int mpi_write_hlp(mbedtls_mpi *X, int radix,
+                         char **p, const size_t buflen)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_mpi_uint r;
     size_t length = 0;
     char *p_end = *p + buflen;
 
-    do
-    {
-        if( length >= buflen )
-        {
-            return( MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL );
+    do {
+        if (length >= buflen) {
+            return MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL;
         }
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, radix ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_div_int( X, NULL, X, radix ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_int(&r, X, radix));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_div_int(X, NULL, X, radix));
         /*
          * Write the residue in the current position, as an ASCII character.
          */
-        if( r < 0xA )
-            *(--p_end) = (char)( '0' + r );
-        else
-            *(--p_end) = (char)( 'A' + ( r - 0xA ) );
+        if (r < 0xA) {
+            *(--p_end) = (char) ('0' + r);
+        } else {
+            *(--p_end) = (char) ('A' + (r - 0xA));
+        }
 
         length++;
-    } while( mbedtls_mpi_cmp_int( X, 0 ) != 0 );
+    } while (mbedtls_mpi_cmp_int(X, 0) != 0);
 
-    memmove( *p, p_end, length );
+    memmove(*p, p_end, length);
     *p += length;
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Export into an ASCII string
  */
-int mbedtls_mpi_write_string( const mbedtls_mpi *X, int radix,
-                              char *buf, size_t buflen, size_t *olen )
+int mbedtls_mpi_write_string(const mbedtls_mpi *X, int radix,
+                             char *buf, size_t buflen, size_t *olen)
 {
     int ret = 0;
     size_t n;
     char *p;
     mbedtls_mpi T;
-    MPI_VALIDATE_RET( X    != NULL );
-    MPI_VALIDATE_RET( olen != NULL );
-    MPI_VALIDATE_RET( buflen == 0 || buf != NULL );
+    MPI_VALIDATE_RET(X    != NULL);
+    MPI_VALIDATE_RET(olen != NULL);
+    MPI_VALIDATE_RET(buflen == 0 || buf != NULL);
 
-    if( radix < 2 || radix > 16 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (radix < 2 || radix > 16) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    n = mbedtls_mpi_bitlen( X ); /* Number of bits necessary to present `n`. */
-    if( radix >=  4 ) n >>= 1;   /* Number of 4-adic digits necessary to present
+    n = mbedtls_mpi_bitlen(X);   /* Number of bits necessary to present `n`. */
+    if (radix >=  4) {
+        n >>= 1;                 /* Number of 4-adic digits necessary to present
                                   * `n`. If radix > 4, this might be a strict
                                   * overapproximation of the number of
                                   * radix-adic digits needed to present `n`. */
-    if( radix >= 16 ) n >>= 1;   /* Number of hexadecimal digits necessary to
+    }
+    if (radix >= 16) {
+        n >>= 1;                 /* Number of hexadecimal digits necessary to
                                   * present `n`. */
 
+    }
     n += 1; /* Terminating null byte */
     n += 1; /* Compensate for the divisions above, which round down `n`
              * in case it's not even. */
     n += 1; /* Potential '-'-sign. */
-    n += ( n & 1 ); /* Make n even to have enough space for hexadecimal writing,
+    n += (n & 1);   /* Make n even to have enough space for hexadecimal writing,
                      * which always uses an even number of hex-digits. */
 
-    if( buflen < n )
-    {
+    if (buflen < n) {
         *olen = n;
-        return( MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL );
+        return MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL;
     }
 
     p = buf;
-    mbedtls_mpi_init( &T );
+    mbedtls_mpi_init(&T);
 
-    if( X->s == -1 )
-    {
+    if (X->s == -1) {
         *p++ = '-';
         buflen--;
     }
 
-    if( radix == 16 )
-    {
+    if (radix == 16) {
         int c;
         size_t i, j, k;
 
-        for( i = X->n, k = 0; i > 0; i-- )
-        {
-            for( j = ciL; j > 0; j-- )
-            {
-                c = ( X->p[i - 1] >> ( ( j - 1 ) << 3) ) & 0xFF;
+        for (i = X->n, k = 0; i > 0; i--) {
+            for (j = ciL; j > 0; j--) {
+                c = (X->p[i - 1] >> ((j - 1) << 3)) & 0xFF;
 
-                if( c == 0 && k == 0 && ( i + j ) != 2 )
+                if (c == 0 && k == 0 && (i + j) != 2) {
                     continue;
+                }
 
                 *(p++) = "0123456789ABCDEF" [c / 16];
                 *(p++) = "0123456789ABCDEF" [c % 16];
                 k = 1;
             }
         }
-    }
-    else
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &T, X ) );
+    } else {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&T, X));
 
-        if( T.s == -1 )
+        if (T.s == -1) {
             T.s = 1;
+        }
 
-        MBEDTLS_MPI_CHK( mpi_write_hlp( &T, radix, &p, buflen ) );
+        MBEDTLS_MPI_CHK(mpi_write_hlp(&T, radix, &p, buflen));
     }
 
     *p++ = '\0';
@@ -564,16 +570,16 @@
 
 cleanup:
 
-    mbedtls_mpi_free( &T );
+    mbedtls_mpi_free(&T);
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_FS_IO)
 /*
  * Read X from an opened file
  */
-int mbedtls_mpi_read_file( mbedtls_mpi *X, int radix, FILE *fin )
+int mbedtls_mpi_read_file(mbedtls_mpi *X, int radix, FILE *fin)
 {
     mbedtls_mpi_uint d;
     size_t slen;
@@ -582,37 +588,46 @@
      * Buffer should have space for (short) label and decimal formatted MPI,
      * newline characters and '\0'
      */
-    char s[ MBEDTLS_MPI_RW_BUFFER_SIZE ];
+    char s[MBEDTLS_MPI_RW_BUFFER_SIZE];
 
-    MPI_VALIDATE_RET( X   != NULL );
-    MPI_VALIDATE_RET( fin != NULL );
+    MPI_VALIDATE_RET(X   != NULL);
+    MPI_VALIDATE_RET(fin != NULL);
 
-    if( radix < 2 || radix > 16 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (radix < 2 || radix > 16) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    memset( s, 0, sizeof( s ) );
-    if( fgets( s, sizeof( s ) - 1, fin ) == NULL )
-        return( MBEDTLS_ERR_MPI_FILE_IO_ERROR );
+    memset(s, 0, sizeof(s));
+    if (fgets(s, sizeof(s) - 1, fin) == NULL) {
+        return MBEDTLS_ERR_MPI_FILE_IO_ERROR;
+    }
 
-    slen = strlen( s );
-    if( slen == sizeof( s ) - 2 )
-        return( MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL );
+    slen = strlen(s);
+    if (slen == sizeof(s) - 2) {
+        return MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL;
+    }
 
-    if( slen > 0 && s[slen - 1] == '\n' ) { slen--; s[slen] = '\0'; }
-    if( slen > 0 && s[slen - 1] == '\r' ) { slen--; s[slen] = '\0'; }
+    if (slen > 0 && s[slen - 1] == '\n') {
+        slen--; s[slen] = '\0';
+    }
+    if (slen > 0 && s[slen - 1] == '\r') {
+        slen--; s[slen] = '\0';
+    }
 
     p = s + slen;
-    while( p-- > s )
-        if( mpi_get_digit( &d, radix, *p ) != 0 )
+    while (p-- > s) {
+        if (mpi_get_digit(&d, radix, *p) != 0) {
             break;
+        }
+    }
 
-    return( mbedtls_mpi_read_string( X, radix, p + 1 ) );
+    return mbedtls_mpi_read_string(X, radix, p + 1);
 }
 
 /*
  * Write X into an opened file (or stdout if fout == NULL)
  */
-int mbedtls_mpi_write_file( const char *p, const mbedtls_mpi *X, int radix, FILE *fout )
+int mbedtls_mpi_write_file(const char *p, const mbedtls_mpi *X, int radix, FILE *fout)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t n, slen, plen;
@@ -620,35 +635,38 @@
      * Buffer should have space for (short) label and decimal formatted MPI,
      * newline characters and '\0'
      */
-    char s[ MBEDTLS_MPI_RW_BUFFER_SIZE ];
-    MPI_VALIDATE_RET( X != NULL );
+    char s[MBEDTLS_MPI_RW_BUFFER_SIZE];
+    MPI_VALIDATE_RET(X != NULL);
 
-    if( radix < 2 || radix > 16 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (radix < 2 || radix > 16) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    memset( s, 0, sizeof( s ) );
+    memset(s, 0, sizeof(s));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_write_string( X, radix, s, sizeof( s ) - 2, &n ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_write_string(X, radix, s, sizeof(s) - 2, &n));
 
-    if( p == NULL ) p = "";
+    if (p == NULL) {
+        p = "";
+    }
 
-    plen = strlen( p );
-    slen = strlen( s );
+    plen = strlen(p);
+    slen = strlen(s);
     s[slen++] = '\r';
     s[slen++] = '\n';
 
-    if( fout != NULL )
-    {
-        if( fwrite( p, 1, plen, fout ) != plen ||
-            fwrite( s, 1, slen, fout ) != slen )
-            return( MBEDTLS_ERR_MPI_FILE_IO_ERROR );
+    if (fout != NULL) {
+        if (fwrite(p, 1, plen, fout) != plen ||
+            fwrite(s, 1, slen, fout) != slen) {
+            return MBEDTLS_ERR_MPI_FILE_IO_ERROR;
+        }
+    } else {
+        mbedtls_printf("%s%s", p, s);
     }
-    else
-        mbedtls_printf( "%s%s", p, s );
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_FS_IO */
 
@@ -658,16 +676,16 @@
  * This function is guaranteed to return an MPI with exactly the necessary
  * number of limbs (in particular, it does not skip 0s in the input).
  */
-int mbedtls_mpi_read_binary_le( mbedtls_mpi *X,
-                                const unsigned char *buf, size_t buflen )
+int mbedtls_mpi_read_binary_le(mbedtls_mpi *X,
+                               const unsigned char *buf, size_t buflen)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    const size_t limbs = CHARS_TO_LIMBS( buflen );
+    const size_t limbs = CHARS_TO_LIMBS(buflen);
 
     /* Ensure that target MPI has exactly the necessary number of limbs */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_resize_clear( X, limbs ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_resize_clear(X, limbs));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_core_read_le( X->p, X->n, buf, buflen ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_core_read_le(X->p, X->n, buf, buflen));
 
 cleanup:
 
@@ -676,7 +694,7 @@
      * upon failure is not necessary because failure only can happen before any
      * input is copied.
      */
-    return( ret );
+    return ret;
 }
 
 /*
@@ -685,18 +703,18 @@
  * This function is guaranteed to return an MPI with exactly the necessary
  * number of limbs (in particular, it does not skip 0s in the input).
  */
-int mbedtls_mpi_read_binary( mbedtls_mpi *X, const unsigned char *buf, size_t buflen )
+int mbedtls_mpi_read_binary(mbedtls_mpi *X, const unsigned char *buf, size_t buflen)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    const size_t limbs = CHARS_TO_LIMBS( buflen );
+    const size_t limbs = CHARS_TO_LIMBS(buflen);
 
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( buflen == 0 || buf != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(buflen == 0 || buf != NULL);
 
     /* Ensure that target MPI has exactly the necessary number of limbs */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_resize_clear( X, limbs ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_resize_clear(X, limbs));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_core_read_be( X->p, X->n, buf, buflen ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_core_read_be(X->p, X->n, buf, buflen));
 
 cleanup:
 
@@ -705,66 +723,66 @@
      * upon failure is not necessary because failure only can happen before any
      * input is copied.
      */
-    return( ret );
+    return ret;
 }
 
 /*
  * Export X into unsigned binary data, little endian
  */
-int mbedtls_mpi_write_binary_le( const mbedtls_mpi *X,
-                                 unsigned char *buf, size_t buflen )
+int mbedtls_mpi_write_binary_le(const mbedtls_mpi *X,
+                                unsigned char *buf, size_t buflen)
 {
-    return( mbedtls_mpi_core_write_le( X->p, X->n, buf, buflen ) );
+    return mbedtls_mpi_core_write_le(X->p, X->n, buf, buflen);
 }
 
 /*
  * Export X into unsigned binary data, big endian
  */
-int mbedtls_mpi_write_binary( const mbedtls_mpi *X,
-                              unsigned char *buf, size_t buflen )
+int mbedtls_mpi_write_binary(const mbedtls_mpi *X,
+                             unsigned char *buf, size_t buflen)
 {
-    return( mbedtls_mpi_core_write_be( X->p, X->n, buf, buflen ) );
+    return mbedtls_mpi_core_write_be(X->p, X->n, buf, buflen);
 }
 
 /*
  * Left-shift: X <<= count
  */
-int mbedtls_mpi_shift_l( mbedtls_mpi *X, size_t count )
+int mbedtls_mpi_shift_l(mbedtls_mpi *X, size_t count)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t i, v0, t1;
     mbedtls_mpi_uint r0 = 0, r1;
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    v0 = count / (biL    );
+    v0 = count / (biL);
     t1 = count & (biL - 1);
 
-    i = mbedtls_mpi_bitlen( X ) + count;
+    i = mbedtls_mpi_bitlen(X) + count;
 
-    if( X->n * biL < i )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, BITS_TO_LIMBS( i ) ) );
+    if (X->n * biL < i) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, BITS_TO_LIMBS(i)));
+    }
 
     ret = 0;
 
     /*
      * shift by count / limb_size
      */
-    if( v0 > 0 )
-    {
-        for( i = X->n; i > v0; i-- )
+    if (v0 > 0) {
+        for (i = X->n; i > v0; i--) {
             X->p[i - 1] = X->p[i - v0 - 1];
+        }
 
-        for( ; i > 0; i-- )
+        for (; i > 0; i--) {
             X->p[i - 1] = 0;
+        }
     }
 
     /*
      * shift by count % limb_size
      */
-    if( t1 > 0 )
-    {
-        for( i = v0; i < X->n; i++ )
-        {
+    if (t1 > 0) {
+        for (i = v0; i < X->n; i++) {
             r1 = X->p[i] >> (biL - t1);
             X->p[i] <<= t1;
             X->p[i] |= r0;
@@ -774,206 +792,237 @@
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Right-shift: X >>= count
  */
-int mbedtls_mpi_shift_r( mbedtls_mpi *X, size_t count )
+int mbedtls_mpi_shift_r(mbedtls_mpi *X, size_t count)
 {
-    MPI_VALIDATE_RET( X != NULL );
-    if( X->n != 0 )
-        mbedtls_mpi_core_shift_r( X->p, X->n, count );
-    return( 0 );
+    MPI_VALIDATE_RET(X != NULL);
+    if (X->n != 0) {
+        mbedtls_mpi_core_shift_r(X->p, X->n, count);
+    }
+    return 0;
 }
 
 /*
  * Compare unsigned values
  */
-int mbedtls_mpi_cmp_abs( const mbedtls_mpi *X, const mbedtls_mpi *Y )
+int mbedtls_mpi_cmp_abs(const mbedtls_mpi *X, const mbedtls_mpi *Y)
 {
     size_t i, j;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( Y != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(Y != NULL);
 
-    for( i = X->n; i > 0; i-- )
-        if( X->p[i - 1] != 0 )
+    for (i = X->n; i > 0; i--) {
+        if (X->p[i - 1] != 0) {
             break;
-
-    for( j = Y->n; j > 0; j-- )
-        if( Y->p[j - 1] != 0 )
-            break;
-
-    if( i == 0 && j == 0 )
-        return( 0 );
-
-    if( i > j ) return(  1 );
-    if( j > i ) return( -1 );
-
-    for( ; i > 0; i-- )
-    {
-        if( X->p[i - 1] > Y->p[i - 1] ) return(  1 );
-        if( X->p[i - 1] < Y->p[i - 1] ) return( -1 );
+        }
     }
 
-    return( 0 );
+    for (j = Y->n; j > 0; j--) {
+        if (Y->p[j - 1] != 0) {
+            break;
+        }
+    }
+
+    if (i == 0 && j == 0) {
+        return 0;
+    }
+
+    if (i > j) {
+        return 1;
+    }
+    if (j > i) {
+        return -1;
+    }
+
+    for (; i > 0; i--) {
+        if (X->p[i - 1] > Y->p[i - 1]) {
+            return 1;
+        }
+        if (X->p[i - 1] < Y->p[i - 1]) {
+            return -1;
+        }
+    }
+
+    return 0;
 }
 
 /*
  * Compare signed values
  */
-int mbedtls_mpi_cmp_mpi( const mbedtls_mpi *X, const mbedtls_mpi *Y )
+int mbedtls_mpi_cmp_mpi(const mbedtls_mpi *X, const mbedtls_mpi *Y)
 {
     size_t i, j;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( Y != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(Y != NULL);
 
-    for( i = X->n; i > 0; i-- )
-        if( X->p[i - 1] != 0 )
+    for (i = X->n; i > 0; i--) {
+        if (X->p[i - 1] != 0) {
             break;
-
-    for( j = Y->n; j > 0; j-- )
-        if( Y->p[j - 1] != 0 )
-            break;
-
-    if( i == 0 && j == 0 )
-        return( 0 );
-
-    if( i > j ) return(  X->s );
-    if( j > i ) return( -Y->s );
-
-    if( X->s > 0 && Y->s < 0 ) return(  1 );
-    if( Y->s > 0 && X->s < 0 ) return( -1 );
-
-    for( ; i > 0; i-- )
-    {
-        if( X->p[i - 1] > Y->p[i - 1] ) return(  X->s );
-        if( X->p[i - 1] < Y->p[i - 1] ) return( -X->s );
+        }
     }
 
-    return( 0 );
+    for (j = Y->n; j > 0; j--) {
+        if (Y->p[j - 1] != 0) {
+            break;
+        }
+    }
+
+    if (i == 0 && j == 0) {
+        return 0;
+    }
+
+    if (i > j) {
+        return X->s;
+    }
+    if (j > i) {
+        return -Y->s;
+    }
+
+    if (X->s > 0 && Y->s < 0) {
+        return 1;
+    }
+    if (Y->s > 0 && X->s < 0) {
+        return -1;
+    }
+
+    for (; i > 0; i--) {
+        if (X->p[i - 1] > Y->p[i - 1]) {
+            return X->s;
+        }
+        if (X->p[i - 1] < Y->p[i - 1]) {
+            return -X->s;
+        }
+    }
+
+    return 0;
 }
 
 /*
  * Compare signed values
  */
-int mbedtls_mpi_cmp_int( const mbedtls_mpi *X, mbedtls_mpi_sint z )
+int mbedtls_mpi_cmp_int(const mbedtls_mpi *X, mbedtls_mpi_sint z)
 {
     mbedtls_mpi Y;
     mbedtls_mpi_uint p[1];
-    MPI_VALIDATE_RET( X != NULL );
+    MPI_VALIDATE_RET(X != NULL);
 
-    *p  = mpi_sint_abs( z );
-    Y.s = ( z < 0 ) ? -1 : 1;
+    *p  = mpi_sint_abs(z);
+    Y.s = (z < 0) ? -1 : 1;
     Y.n = 1;
     Y.p = p;
 
-    return( mbedtls_mpi_cmp_mpi( X, &Y ) );
+    return mbedtls_mpi_cmp_mpi(X, &Y);
 }
 
 /*
  * Unsigned addition: X = |A| + |B|  (HAC 14.7)
  */
-int mbedtls_mpi_add_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_add_abs(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t j;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
-    if( X == B )
-    {
+    if (X == B) {
         const mbedtls_mpi *T = A; A = X; B = T;
     }
 
-    if( X != A )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, A ) );
+    if (X != A) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(X, A));
+    }
 
     /*
      * X must always be positive as a result of unsigned additions.
      */
     X->s = 1;
 
-    for( j = B->n; j > 0; j-- )
-        if( B->p[j - 1] != 0 )
+    for (j = B->n; j > 0; j--) {
+        if (B->p[j - 1] != 0) {
             break;
+        }
+    }
 
     /* Exit early to avoid undefined behavior on NULL+0 when X->n == 0
      * and B is 0 (of any size). */
-    if( j == 0 )
-        return( 0 );
+    if (j == 0) {
+        return 0;
+    }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, j ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, j));
 
     /* j is the number of non-zero limbs of B. Add those to X. */
 
     mbedtls_mpi_uint *p = X->p;
 
-    mbedtls_mpi_uint c = mbedtls_mpi_core_add( p, p, B->p, j );
+    mbedtls_mpi_uint c = mbedtls_mpi_core_add(p, p, B->p, j);
 
     p += j;
 
     /* Now propagate any carry */
 
-    while( c != 0 )
-    {
-        if( j >= X->n )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, j + 1 ) );
+    while (c != 0) {
+        if (j >= X->n) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, j + 1));
             p = X->p + j;
         }
 
-        *p += c; c = ( *p < c ); j++; p++;
+        *p += c; c = (*p < c); j++; p++;
     }
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Unsigned subtraction: X = |A| - |B|  (HAC 14.9, 14.10)
  */
-int mbedtls_mpi_sub_abs( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_sub_abs(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t n;
     mbedtls_mpi_uint carry;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
-    for( n = B->n; n > 0; n-- )
-        if( B->p[n - 1] != 0 )
+    for (n = B->n; n > 0; n--) {
+        if (B->p[n - 1] != 0) {
             break;
-    if( n > A->n )
-    {
+        }
+    }
+    if (n > A->n) {
         /* B >= (2^ciL)^n > A */
         ret = MBEDTLS_ERR_MPI_NEGATIVE_VALUE;
         goto cleanup;
     }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, A->n ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, A->n));
 
     /* Set the high limbs of X to match A. Don't touch the lower limbs
      * because X might be aliased to B, and we must not overwrite the
      * significant digits of B. */
-    if( A->n > n )
-        memcpy( X->p + n, A->p + n, ( A->n - n ) * ciL );
-    if( X->n > A->n )
-        memset( X->p + A->n, 0, ( X->n - A->n ) * ciL );
+    if (A->n > n) {
+        memcpy(X->p + n, A->p + n, (A->n - n) * ciL);
+    }
+    if (X->n > A->n) {
+        memset(X->p + A->n, 0, (X->n - A->n) * ciL);
+    }
 
-    carry = mbedtls_mpi_core_sub( X->p, A->p, B->p, n );
-    if( carry != 0 )
-    {
+    carry = mbedtls_mpi_core_sub(X->p, A->p, B->p, n);
+    if (carry != 0) {
         /* Propagate the carry through the rest of X. */
-        carry = mbedtls_mpi_core_sub_int( X->p + n, X->p + n, carry, X->n - n );
+        carry = mbedtls_mpi_core_sub_int(X->p + n, X->p + n, carry, X->n - n);
 
         /* If we have further carry/borrow, the result is negative. */
-        if( carry != 0 )
-        {
+        if (carry != 0) {
             ret = MBEDTLS_ERR_MPI_NEGATIVE_VALUE;
             goto cleanup;
         }
@@ -983,176 +1032,182 @@
     X->s = 1;
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
 /* Common function for signed addition and subtraction.
  * Calculate A + B * flip_B where flip_B is 1 or -1.
  */
-static int add_sub_mpi( mbedtls_mpi *X,
-                        const mbedtls_mpi *A, const mbedtls_mpi *B,
-                        int flip_B )
+static int add_sub_mpi(mbedtls_mpi *X,
+                       const mbedtls_mpi *A, const mbedtls_mpi *B,
+                       int flip_B)
 {
     int ret, s;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
     s = A->s;
-    if( A->s * B->s * flip_B < 0 )
-    {
-        int cmp = mbedtls_mpi_cmp_abs( A, B );
-        if( cmp >= 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, A, B ) );
+    if (A->s * B->s * flip_B < 0) {
+        int cmp = mbedtls_mpi_cmp_abs(A, B);
+        if (cmp >= 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_abs(X, A, B));
             /* If |A| = |B|, the result is 0 and we must set the sign bit
              * to +1 regardless of which of A or B was negative. Otherwise,
              * since |A| > |B|, the sign is the sign of A. */
             X->s = cmp == 0 ? 1 : s;
-        }
-        else
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( X, B, A ) );
+        } else {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_abs(X, B, A));
             /* Since |A| < |B|, the sign is the opposite of A. */
             X->s = -s;
         }
-    }
-    else
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( X, A, B ) );
+    } else {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_abs(X, A, B));
         X->s = s;
     }
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Signed addition: X = A + B
  */
-int mbedtls_mpi_add_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_add_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
-    return( add_sub_mpi( X, A, B, 1 ) );
+    return add_sub_mpi(X, A, B, 1);
 }
 
 /*
  * Signed subtraction: X = A - B
  */
-int mbedtls_mpi_sub_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_sub_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
-    return( add_sub_mpi( X, A, B, -1 ) );
+    return add_sub_mpi(X, A, B, -1);
 }
 
 /*
  * Signed addition: X = A + b
  */
-int mbedtls_mpi_add_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b )
+int mbedtls_mpi_add_int(mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b)
 {
     mbedtls_mpi B;
     mbedtls_mpi_uint p[1];
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
 
-    p[0] = mpi_sint_abs( b );
-    B.s = ( b < 0 ) ? -1 : 1;
+    p[0] = mpi_sint_abs(b);
+    B.s = (b < 0) ? -1 : 1;
     B.n = 1;
     B.p = p;
 
-    return( mbedtls_mpi_add_mpi( X, A, &B ) );
+    return mbedtls_mpi_add_mpi(X, A, &B);
 }
 
 /*
  * Signed subtraction: X = A - b
  */
-int mbedtls_mpi_sub_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b )
+int mbedtls_mpi_sub_int(mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b)
 {
     mbedtls_mpi B;
     mbedtls_mpi_uint p[1];
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
 
-    p[0] = mpi_sint_abs( b );
-    B.s = ( b < 0 ) ? -1 : 1;
+    p[0] = mpi_sint_abs(b);
+    B.s = (b < 0) ? -1 : 1;
     B.n = 1;
     B.p = p;
 
-    return( mbedtls_mpi_sub_mpi( X, A, &B ) );
+    return mbedtls_mpi_sub_mpi(X, A, &B);
 }
 
 /*
  * Baseline multiplication: X = A * B  (HAC 14.12)
  */
-int mbedtls_mpi_mul_mpi( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_mul_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t i, j;
     mbedtls_mpi TA, TB;
     int result_is_zero = 0;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
-    mbedtls_mpi_init( &TA ); mbedtls_mpi_init( &TB );
+    mbedtls_mpi_init(&TA); mbedtls_mpi_init(&TB);
 
-    if( X == A ) { MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TA, A ) ); A = &TA; }
-    if( X == B ) { MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, B ) ); B = &TB; }
+    if (X == A) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TA, A)); A = &TA;
+    }
+    if (X == B) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TB, B)); B = &TB;
+    }
 
-    for( i = A->n; i > 0; i-- )
-        if( A->p[i - 1] != 0 )
+    for (i = A->n; i > 0; i--) {
+        if (A->p[i - 1] != 0) {
             break;
-    if( i == 0 )
+        }
+    }
+    if (i == 0) {
         result_is_zero = 1;
+    }
 
-    for( j = B->n; j > 0; j-- )
-        if( B->p[j - 1] != 0 )
+    for (j = B->n; j > 0; j--) {
+        if (B->p[j - 1] != 0) {
             break;
-    if( j == 0 )
+        }
+    }
+    if (j == 0) {
         result_is_zero = 1;
+    }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, i + j ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( X, 0 ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, i + j));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(X, 0));
 
-    for( size_t k = 0; k < j; k++ )
-    {
+    for (size_t k = 0; k < j; k++) {
         /* We know that there cannot be any carry-out since we're
          * iterating from bottom to top. */
-        (void) mbedtls_mpi_core_mla( X->p + k, i + 1,
-                                     A->p, i,
-                                     B->p[k] );
+        (void) mbedtls_mpi_core_mla(X->p + k, i + 1,
+                                    A->p, i,
+                                    B->p[k]);
     }
 
     /* If the result is 0, we don't shortcut the operation, which reduces
      * but does not eliminate side channels leaking the zero-ness. We do
      * need to take care to set the sign bit properly since the library does
      * not fully support an MPI object with a value of 0 and s == -1. */
-    if( result_is_zero )
+    if (result_is_zero) {
         X->s = 1;
-    else
+    } else {
         X->s = A->s * B->s;
+    }
 
 cleanup:
 
-    mbedtls_mpi_free( &TB ); mbedtls_mpi_free( &TA );
+    mbedtls_mpi_free(&TB); mbedtls_mpi_free(&TA);
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Baseline multiplication: X = A * b
  */
-int mbedtls_mpi_mul_int( mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_uint b )
+int mbedtls_mpi_mul_int(mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_uint b)
 {
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
 
     size_t n = A->n;
-    while( n > 0 && A->p[n - 1] == 0 )
+    while (n > 0 && A->p[n - 1] == 0) {
         --n;
+    }
 
     /* The general method below doesn't work if b==0. */
-    if( b == 0 || n == 0 )
-        return( mbedtls_mpi_lset( X, 0 ) );
+    if (b == 0 || n == 0) {
+        return mbedtls_mpi_lset(X, 0);
+    }
 
     /* Calculate A*b as A + A*(b-1) to take advantage of mbedtls_mpi_core_mla */
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -1167,26 +1222,28 @@
      *
      * Note that calculating A*b as 0 + A*b doesn't work as-is because
      * A,X can be the same. */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( X, n + 1 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, A ) );
-    mbedtls_mpi_core_mla( X->p, X->n, A->p, n, b - 1 );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, n + 1));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(X, A));
+    mbedtls_mpi_core_mla(X->p, X->n, A->p, n, b - 1);
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
 /*
  * Unsigned integer divide - double mbedtls_mpi_uint dividend, u1/u0, and
  * mbedtls_mpi_uint divisor, d
  */
-static mbedtls_mpi_uint mbedtls_int_div_int( mbedtls_mpi_uint u1,
-            mbedtls_mpi_uint u0, mbedtls_mpi_uint d, mbedtls_mpi_uint *r )
+static mbedtls_mpi_uint mbedtls_int_div_int(mbedtls_mpi_uint u1,
+                                            mbedtls_mpi_uint u0,
+                                            mbedtls_mpi_uint d,
+                                            mbedtls_mpi_uint *r)
 {
 #if defined(MBEDTLS_HAVE_UDBL)
     mbedtls_t_udbl dividend, quotient;
 #else
     const mbedtls_mpi_uint radix = (mbedtls_mpi_uint) 1 << biH;
-    const mbedtls_mpi_uint uint_halfword_mask = ( (mbedtls_mpi_uint) 1 << biH ) - 1;
+    const mbedtls_mpi_uint uint_halfword_mask = ((mbedtls_mpi_uint) 1 << biH) - 1;
     mbedtls_mpi_uint d0, d1, q0, q1, rAX, r0, quotient;
     mbedtls_mpi_uint u0_msw, u0_lsw;
     size_t s;
@@ -1195,22 +1252,25 @@
     /*
      * Check for overflow
      */
-    if( 0 == d || u1 >= d )
-    {
-        if (r != NULL) *r = ~(mbedtls_mpi_uint)0u;
+    if (0 == d || u1 >= d) {
+        if (r != NULL) {
+            *r = ~(mbedtls_mpi_uint) 0u;
+        }
 
-        return ( ~(mbedtls_mpi_uint)0u );
+        return ~(mbedtls_mpi_uint) 0u;
     }
 
 #if defined(MBEDTLS_HAVE_UDBL)
     dividend  = (mbedtls_t_udbl) u1 << biL;
     dividend |= (mbedtls_t_udbl) u0;
     quotient = dividend / d;
-    if( quotient > ( (mbedtls_t_udbl) 1 << biL ) - 1 )
-        quotient = ( (mbedtls_t_udbl) 1 << biL ) - 1;
+    if (quotient > ((mbedtls_t_udbl) 1 << biL) - 1) {
+        quotient = ((mbedtls_t_udbl) 1 << biL) - 1;
+    }
 
-    if( r != NULL )
-        *r = (mbedtls_mpi_uint)( dividend - (quotient * d ) );
+    if (r != NULL) {
+        *r = (mbedtls_mpi_uint) (dividend - (quotient * d));
+    }
 
     return (mbedtls_mpi_uint) quotient;
 #else
@@ -1223,11 +1283,11 @@
     /*
      * Normalize the divisor, d, and dividend, u0, u1
      */
-    s = mbedtls_mpi_core_clz( d );
+    s = mbedtls_mpi_core_clz(d);
     d = d << s;
 
     u1 = u1 << s;
-    u1 |= ( u0 >> ( biL - s ) ) & ( -(mbedtls_mpi_sint)s >> ( biL - 1 ) );
+    u1 |= (u0 >> (biL - s)) & (-(mbedtls_mpi_sint) s >> (biL - 1));
     u0 =  u0 << s;
 
     d1 = d >> biH;
@@ -1242,28 +1302,31 @@
     q1 = u1 / d1;
     r0 = u1 - d1 * q1;
 
-    while( q1 >= radix || ( q1 * d0 > radix * r0 + u0_msw ) )
-    {
+    while (q1 >= radix || (q1 * d0 > radix * r0 + u0_msw)) {
         q1 -= 1;
         r0 += d1;
 
-        if ( r0 >= radix ) break;
+        if (r0 >= radix) {
+            break;
+        }
     }
 
-    rAX = ( u1 * radix ) + ( u0_msw - q1 * d );
+    rAX = (u1 * radix) + (u0_msw - q1 * d);
     q0 = rAX / d1;
     r0 = rAX - q0 * d1;
 
-    while( q0 >= radix || ( q0 * d0 > radix * r0 + u0_lsw ) )
-    {
+    while (q0 >= radix || (q0 * d0 > radix * r0 + u0_lsw)) {
         q0 -= 1;
         r0 += d1;
 
-        if ( r0 >= radix ) break;
+        if (r0 >= radix) {
+            break;
+        }
     }
 
-    if (r != NULL)
-        *r = ( rAX * radix + u0_lsw - q0 * d ) >> s;
+    if (r != NULL) {
+        *r = (rAX * radix + u0_lsw - q0 * d) >> s;
+    }
 
     quotient = q1 * radix + q0;
 
@@ -1274,21 +1337,22 @@
 /*
  * Division by mbedtls_mpi: A = Q * B + R  (HAC 14.20)
  */
-int mbedtls_mpi_div_mpi( mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A,
-                         const mbedtls_mpi *B )
+int mbedtls_mpi_div_mpi(mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A,
+                        const mbedtls_mpi *B)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t i, n, t, k;
     mbedtls_mpi X, Y, Z, T1, T2;
     mbedtls_mpi_uint TP2[3];
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
-    if( mbedtls_mpi_cmp_int( B, 0 ) == 0 )
-        return( MBEDTLS_ERR_MPI_DIVISION_BY_ZERO );
+    if (mbedtls_mpi_cmp_int(B, 0) == 0) {
+        return MBEDTLS_ERR_MPI_DIVISION_BY_ZERO;
+    }
 
-    mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &Z );
-    mbedtls_mpi_init( &T1 );
+    mbedtls_mpi_init(&X); mbedtls_mpi_init(&Y); mbedtls_mpi_init(&Z);
+    mbedtls_mpi_init(&T1);
     /*
      * Avoid dynamic memory allocations for constant-size T2.
      *
@@ -1297,196 +1361,194 @@
      * buffer.
      */
     T2.s = 1;
-    T2.n = sizeof( TP2 ) / sizeof( *TP2 );
+    T2.n = sizeof(TP2) / sizeof(*TP2);
     T2.p = TP2;
 
-    if( mbedtls_mpi_cmp_abs( A, B ) < 0 )
-    {
-        if( Q != NULL ) MBEDTLS_MPI_CHK( mbedtls_mpi_lset( Q, 0 ) );
-        if( R != NULL ) MBEDTLS_MPI_CHK( mbedtls_mpi_copy( R, A ) );
-        return( 0 );
+    if (mbedtls_mpi_cmp_abs(A, B) < 0) {
+        if (Q != NULL) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_lset(Q, 0));
+        }
+        if (R != NULL) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_copy(R, A));
+        }
+        return 0;
     }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &X, A ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Y, B ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&X, A));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&Y, B));
     X.s = Y.s = 1;
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &Z, A->n + 2 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &Z,  0 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &T1, A->n + 2 ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&Z, A->n + 2));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&Z,  0));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&T1, A->n + 2));
 
-    k = mbedtls_mpi_bitlen( &Y ) % biL;
-    if( k < biL - 1 )
-    {
+    k = mbedtls_mpi_bitlen(&Y) % biL;
+    if (k < biL - 1) {
         k = biL - 1 - k;
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &X, k ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &Y, k ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&X, k));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&Y, k));
+    } else {
+        k = 0;
     }
-    else k = 0;
 
     n = X.n - 1;
     t = Y.n - 1;
-    MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &Y, biL * ( n - t ) ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&Y, biL * (n - t)));
 
-    while( mbedtls_mpi_cmp_mpi( &X, &Y ) >= 0 )
-    {
+    while (mbedtls_mpi_cmp_mpi(&X, &Y) >= 0) {
         Z.p[n - t]++;
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &Y ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&X, &X, &Y));
     }
-    MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &Y, biL * ( n - t ) ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&Y, biL * (n - t)));
 
-    for( i = n; i > t ; i-- )
-    {
-        if( X.p[i] >= Y.p[t] )
-            Z.p[i - t - 1] = ~(mbedtls_mpi_uint)0u;
-        else
-        {
-            Z.p[i - t - 1] = mbedtls_int_div_int( X.p[i], X.p[i - 1],
-                                                            Y.p[t], NULL);
+    for (i = n; i > t; i--) {
+        if (X.p[i] >= Y.p[t]) {
+            Z.p[i - t - 1] = ~(mbedtls_mpi_uint) 0u;
+        } else {
+            Z.p[i - t - 1] = mbedtls_int_div_int(X.p[i], X.p[i - 1],
+                                                 Y.p[t], NULL);
         }
 
-        T2.p[0] = ( i < 2 ) ? 0 : X.p[i - 2];
-        T2.p[1] = ( i < 1 ) ? 0 : X.p[i - 1];
+        T2.p[0] = (i < 2) ? 0 : X.p[i - 2];
+        T2.p[1] = (i < 1) ? 0 : X.p[i - 1];
         T2.p[2] = X.p[i];
 
         Z.p[i - t - 1]++;
-        do
-        {
+        do {
             Z.p[i - t - 1]--;
 
-            MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &T1, 0 ) );
-            T1.p[0] = ( t < 1 ) ? 0 : Y.p[t - 1];
+            MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&T1, 0));
+            T1.p[0] = (t < 1) ? 0 : Y.p[t - 1];
             T1.p[1] = Y.p[t];
-            MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &T1, Z.p[i - t - 1] ) );
-        }
-        while( mbedtls_mpi_cmp_mpi( &T1, &T2 ) > 0 );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_mul_int(&T1, &T1, Z.p[i - t - 1]));
+        } while (mbedtls_mpi_cmp_mpi(&T1, &T2) > 0);
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &Y, Z.p[i - t - 1] ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T1,  biL * ( i - t - 1 ) ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &T1 ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_int(&T1, &Y, Z.p[i - t - 1]));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&T1,  biL * (i - t - 1)));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&X, &X, &T1));
 
-        if( mbedtls_mpi_cmp_int( &X, 0 ) < 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &T1, &Y ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T1, biL * ( i - t - 1 ) ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &X, &X, &T1 ) );
+        if (mbedtls_mpi_cmp_int(&X, 0) < 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&T1, &Y));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&T1, biL * (i - t - 1)));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&X, &X, &T1));
             Z.p[i - t - 1]--;
         }
     }
 
-    if( Q != NULL )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( Q, &Z ) );
+    if (Q != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(Q, &Z));
         Q->s = A->s * B->s;
     }
 
-    if( R != NULL )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &X, k ) );
+    if (R != NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&X, k));
         X.s = A->s;
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( R, &X ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(R, &X));
 
-        if( mbedtls_mpi_cmp_int( R, 0 ) == 0 )
+        if (mbedtls_mpi_cmp_int(R, 0) == 0) {
             R->s = 1;
+        }
     }
 
 cleanup:
 
-    mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &Z );
-    mbedtls_mpi_free( &T1 );
-    mbedtls_platform_zeroize( TP2, sizeof( TP2 ) );
+    mbedtls_mpi_free(&X); mbedtls_mpi_free(&Y); mbedtls_mpi_free(&Z);
+    mbedtls_mpi_free(&T1);
+    mbedtls_platform_zeroize(TP2, sizeof(TP2));
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Division by int: A = Q * b + R
  */
-int mbedtls_mpi_div_int( mbedtls_mpi *Q, mbedtls_mpi *R,
-                         const mbedtls_mpi *A,
-                         mbedtls_mpi_sint b )
+int mbedtls_mpi_div_int(mbedtls_mpi *Q, mbedtls_mpi *R,
+                        const mbedtls_mpi *A,
+                        mbedtls_mpi_sint b)
 {
     mbedtls_mpi B;
     mbedtls_mpi_uint p[1];
-    MPI_VALIDATE_RET( A != NULL );
+    MPI_VALIDATE_RET(A != NULL);
 
-    p[0] = mpi_sint_abs( b );
-    B.s = ( b < 0 ) ? -1 : 1;
+    p[0] = mpi_sint_abs(b);
+    B.s = (b < 0) ? -1 : 1;
     B.n = 1;
     B.p = p;
 
-    return( mbedtls_mpi_div_mpi( Q, R, A, &B ) );
+    return mbedtls_mpi_div_mpi(Q, R, A, &B);
 }
 
 /*
  * Modulo: R = A mod B
  */
-int mbedtls_mpi_mod_mpi( mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_mod_mpi(mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    MPI_VALIDATE_RET( R != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(R != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
-    if( mbedtls_mpi_cmp_int( B, 0 ) < 0 )
-        return( MBEDTLS_ERR_MPI_NEGATIVE_VALUE );
+    if (mbedtls_mpi_cmp_int(B, 0) < 0) {
+        return MBEDTLS_ERR_MPI_NEGATIVE_VALUE;
+    }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( NULL, R, A, B ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_div_mpi(NULL, R, A, B));
 
-    while( mbedtls_mpi_cmp_int( R, 0 ) < 0 )
-      MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( R, R, B ) );
+    while (mbedtls_mpi_cmp_int(R, 0) < 0) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(R, R, B));
+    }
 
-    while( mbedtls_mpi_cmp_mpi( R, B ) >= 0 )
-      MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( R, R, B ) );
+    while (mbedtls_mpi_cmp_mpi(R, B) >= 0) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(R, R, B));
+    }
 
 cleanup:
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Modulo: r = A mod b
  */
-int mbedtls_mpi_mod_int( mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_sint b )
+int mbedtls_mpi_mod_int(mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_sint b)
 {
     size_t i;
     mbedtls_mpi_uint x, y, z;
-    MPI_VALIDATE_RET( r != NULL );
-    MPI_VALIDATE_RET( A != NULL );
+    MPI_VALIDATE_RET(r != NULL);
+    MPI_VALIDATE_RET(A != NULL);
 
-    if( b == 0 )
-        return( MBEDTLS_ERR_MPI_DIVISION_BY_ZERO );
+    if (b == 0) {
+        return MBEDTLS_ERR_MPI_DIVISION_BY_ZERO;
+    }
 
-    if( b < 0 )
-        return( MBEDTLS_ERR_MPI_NEGATIVE_VALUE );
+    if (b < 0) {
+        return MBEDTLS_ERR_MPI_NEGATIVE_VALUE;
+    }
 
     /*
      * handle trivial cases
      */
-    if( b == 1 || A->n == 0 )
-    {
+    if (b == 1 || A->n == 0) {
         *r = 0;
-        return( 0 );
+        return 0;
     }
 
-    if( b == 2 )
-    {
+    if (b == 2) {
         *r = A->p[0] & 1;
-        return( 0 );
+        return 0;
     }
 
     /*
      * general case
      */
-    for( i = A->n, y = 0; i > 0; i-- )
-    {
+    for (i = A->n, y = 0; i > 0; i--) {
         x  = A->p[i - 1];
-        y  = ( y << biH ) | ( x >> biH );
+        y  = (y << biH) | (x >> biH);
         z  = y / b;
         y -= z * b;
 
         x <<= biH;
-        y  = ( y << biH ) | ( x >> biH );
+        y  = (y << biH) | (x >> biH);
         z  = y / b;
         y -= z * b;
     }
@@ -1495,17 +1557,18 @@
      * If A is negative, then the current y represents a negative value.
      * Flipping it to the positive side.
      */
-    if( A->s < 0 && y != 0 )
+    if (A->s < 0 && y != 0) {
         y = b - y;
+    }
 
     *r = y;
 
-    return( 0 );
+    return 0;
 }
 
-static void mpi_montg_init( mbedtls_mpi_uint *mm, const mbedtls_mpi *N )
+static void mpi_montg_init(mbedtls_mpi_uint *mm, const mbedtls_mpi *N)
 {
-    *mm = mbedtls_mpi_core_montmul_init( N->p );
+    *mm = mbedtls_mpi_core_montmul_init(N->p);
 }
 
 /** Montgomery multiplication: A = A * B * R^-1 mod N  (HAC 14.36)
@@ -1529,11 +1592,11 @@
  *                      its final content is indeterminate.
  *                      It does not get reallocated.
  */
-static void mpi_montmul( mbedtls_mpi *A, const mbedtls_mpi *B,
-                         const mbedtls_mpi *N, mbedtls_mpi_uint mm,
-                         mbedtls_mpi *T )
+static void mpi_montmul(mbedtls_mpi *A, const mbedtls_mpi *B,
+                        const mbedtls_mpi *N, mbedtls_mpi_uint mm,
+                        mbedtls_mpi *T)
 {
-    mbedtls_mpi_core_montmul( A->p, A->p, B->p, B->n, N->p, N->n, mm, T->p );
+    mbedtls_mpi_core_montmul(A->p, A->p, B->p, B->n, N->p, N->n, mm, T->p);
 }
 
 /*
@@ -1541,8 +1604,8 @@
  *
  * See mpi_montmul() regarding constraints and guarantees on the parameters.
  */
-static void mpi_montred( mbedtls_mpi *A, const mbedtls_mpi *N,
-                         mbedtls_mpi_uint mm, mbedtls_mpi *T )
+static void mpi_montred(mbedtls_mpi *A, const mbedtls_mpi *N,
+                        mbedtls_mpi_uint mm, mbedtls_mpi *T)
 {
     mbedtls_mpi_uint z = 1;
     mbedtls_mpi U;
@@ -1550,7 +1613,7 @@
     U.n = U.s = (int) z;
     U.p = &z;
 
-    mpi_montmul( A, &U, N, mm, T );
+    mpi_montmul(A, &U, N, mm, T);
 }
 
 /**
@@ -1568,67 +1631,71 @@
  *
  * \return \c 0 on success, or a negative error code.
  */
-static int mpi_select( mbedtls_mpi *R, const mbedtls_mpi *T, size_t T_size, size_t idx )
+static int mpi_select(mbedtls_mpi *R, const mbedtls_mpi *T, size_t T_size, size_t idx)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    for( size_t i = 0; i < T_size; i++ )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( R, &T[i],
-                        (unsigned char) mbedtls_ct_size_bool_eq( i, idx ) ) );
+    for (size_t i = 0; i < T_size; i++) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_safe_cond_assign(R, &T[i],
+                                                     (unsigned char) mbedtls_ct_size_bool_eq(i,
+                                                                                             idx)));
     }
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
 /*
  * Sliding-window exponentiation: X = A^E mod N  (HAC 14.85)
  */
-int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A,
-                         const mbedtls_mpi *E, const mbedtls_mpi *N,
-                         mbedtls_mpi *prec_RR )
+int mbedtls_mpi_exp_mod(mbedtls_mpi *X, const mbedtls_mpi *A,
+                        const mbedtls_mpi *E, const mbedtls_mpi *N,
+                        mbedtls_mpi *prec_RR)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t window_bitsize;
     size_t i, j, nblimbs;
     size_t bufsize, nbits;
     mbedtls_mpi_uint ei, mm, state;
-    mbedtls_mpi RR, T, W[ (size_t) 1 << MBEDTLS_MPI_WINDOW_SIZE ], WW, Apos;
+    mbedtls_mpi RR, T, W[(size_t) 1 << MBEDTLS_MPI_WINDOW_SIZE], WW, Apos;
     int neg;
 
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( E != NULL );
-    MPI_VALIDATE_RET( N != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(E != NULL);
+    MPI_VALIDATE_RET(N != NULL);
 
-    if( mbedtls_mpi_cmp_int( N, 0 ) <= 0 || ( N->p[0] & 1 ) == 0 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (mbedtls_mpi_cmp_int(N, 0) <= 0 || (N->p[0] & 1) == 0) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    if( mbedtls_mpi_cmp_int( E, 0 ) < 0 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (mbedtls_mpi_cmp_int(E, 0) < 0) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    if( mbedtls_mpi_bitlen( E ) > MBEDTLS_MPI_MAX_BITS ||
-        mbedtls_mpi_bitlen( N ) > MBEDTLS_MPI_MAX_BITS )
-        return ( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (mbedtls_mpi_bitlen(E) > MBEDTLS_MPI_MAX_BITS ||
+        mbedtls_mpi_bitlen(N) > MBEDTLS_MPI_MAX_BITS) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
     /*
      * Init temps and window size
      */
-    mpi_montg_init( &mm, N );
-    mbedtls_mpi_init( &RR ); mbedtls_mpi_init( &T );
-    mbedtls_mpi_init( &Apos );
-    mbedtls_mpi_init( &WW );
-    memset( W, 0, sizeof( W ) );
+    mpi_montg_init(&mm, N);
+    mbedtls_mpi_init(&RR); mbedtls_mpi_init(&T);
+    mbedtls_mpi_init(&Apos);
+    mbedtls_mpi_init(&WW);
+    memset(W, 0, sizeof(W));
 
-    i = mbedtls_mpi_bitlen( E );
+    i = mbedtls_mpi_bitlen(E);
 
-    window_bitsize = ( i > 671 ) ? 6 : ( i > 239 ) ? 5 :
-            ( i >  79 ) ? 4 : ( i >  23 ) ? 3 : 1;
+    window_bitsize = (i > 671) ? 6 : (i > 239) ? 5 :
+                     (i >  79) ? 4 : (i >  23) ? 3 : 1;
 
-#if( MBEDTLS_MPI_WINDOW_SIZE < 6 )
-    if( window_bitsize > MBEDTLS_MPI_WINDOW_SIZE )
+#if (MBEDTLS_MPI_WINDOW_SIZE < 6)
+    if (window_bitsize > MBEDTLS_MPI_WINDOW_SIZE) {
         window_bitsize = MBEDTLS_MPI_WINDOW_SIZE;
+    }
 #endif
 
     const size_t w_table_used_size = (size_t) 1 << window_bitsize;
@@ -1666,8 +1733,8 @@
      * calculation from this point on.
      */
     const size_t x_index = 0;
-    mbedtls_mpi_init( &W[x_index] );
-    mbedtls_mpi_copy( &W[x_index], X );
+    mbedtls_mpi_init(&W[x_index]);
+    mbedtls_mpi_copy(&W[x_index], X);
 
     j = N->n + 1;
     /* All W[i] and X must have at least N->n limbs for the mpi_montmul()
@@ -1675,17 +1742,16 @@
      * large enough, and later we'll grow other W[i] to the same length.
      * They must not be shrunk midway through this function!
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[x_index], j ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[1],  j ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &T, j * 2 ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&W[x_index], j));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&W[1],  j));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&T, j * 2));
 
     /*
      * Compensate for negative A (and correct at the end)
      */
-    neg = ( A->s == -1 );
-    if( neg )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Apos, A ) );
+    neg = (A->s == -1);
+    if (neg) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&Apos, A));
         Apos.s = 1;
         A = &Apos;
     }
@@ -1693,45 +1759,43 @@
     /*
      * If 1st call, pre-compute R^2 mod N
      */
-    if( prec_RR == NULL || prec_RR->p == NULL )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &RR, 1 ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &RR, N->n * 2 * biL ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &RR, &RR, N ) );
+    if (prec_RR == NULL || prec_RR->p == NULL) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&RR, 1));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&RR, N->n * 2 * biL));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&RR, &RR, N));
 
-        if( prec_RR != NULL )
-            memcpy( prec_RR, &RR, sizeof( mbedtls_mpi ) );
+        if (prec_RR != NULL) {
+            memcpy(prec_RR, &RR, sizeof(mbedtls_mpi));
+        }
+    } else {
+        memcpy(&RR, prec_RR, sizeof(mbedtls_mpi));
     }
-    else
-        memcpy( &RR, prec_RR, sizeof( mbedtls_mpi ) );
 
     /*
      * W[1] = A * R^2 * R^-1 mod N = A * R mod N
      */
-    if( mbedtls_mpi_cmp_mpi( A, N ) >= 0 )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &W[1], A, N ) );
+    if (mbedtls_mpi_cmp_mpi(A, N) >= 0) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&W[1], A, N));
         /* This should be a no-op because W[1] is already that large before
          * mbedtls_mpi_mod_mpi(), but it's necessary to avoid an overflow
          * in mpi_montmul() below, so let's make sure. */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[1], N->n + 1 ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&W[1], N->n + 1));
+    } else {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&W[1], A));
     }
-    else
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[1], A ) );
 
     /* Note that this is safe because W[1] always has at least N->n limbs
      * (it grew above and was preserved by mbedtls_mpi_copy()). */
-    mpi_montmul( &W[1], &RR, N, mm, &T );
+    mpi_montmul(&W[1], &RR, N, mm, &T);
 
     /*
      * W[x_index] = R^2 * R^-1 mod N = R mod N
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[x_index], &RR ) );
-    mpi_montred( &W[x_index], N, mm, &T );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&W[x_index], &RR));
+    mpi_montred(&W[x_index], N, mm, &T);
 
 
-    if( window_bitsize > 1 )
-    {
+    if (window_bitsize > 1) {
         /*
          * W[i] = W[1] ^ i
          *
@@ -1744,21 +1808,21 @@
          */
         j = w_table_used_size / 2;
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[j], N->n + 1 ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[j], &W[1]    ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&W[j], N->n + 1));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&W[j], &W[1]));
 
-        for( i = 0; i < window_bitsize - 1; i++ )
-            mpi_montmul( &W[j], &W[j], N, mm, &T );
+        for (i = 0; i < window_bitsize - 1; i++) {
+            mpi_montmul(&W[j], &W[j], N, mm, &T);
+        }
 
         /*
          * W[i] = W[i - 1] * W[1]
          */
-        for( i = j + 1; i < w_table_used_size; i++ )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_grow( &W[i], N->n + 1 ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &W[i], &W[i - 1] ) );
+        for (i = j + 1; i < w_table_used_size; i++) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_grow(&W[i], N->n + 1));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&W[i], &W[i - 1]));
 
-            mpi_montmul( &W[i], &W[1], N, mm, &T );
+            mpi_montmul(&W[i], &W[1], N, mm, &T);
         }
     }
 
@@ -1768,16 +1832,15 @@
     size_t exponent_bits_in_window = 0;
     state   = 0;
 
-    while( 1 )
-    {
-        if( bufsize == 0 )
-        {
-            if( nblimbs == 0 )
+    while (1) {
+        if (bufsize == 0) {
+            if (nblimbs == 0) {
                 break;
+            }
 
             nblimbs--;
 
-            bufsize = sizeof( mbedtls_mpi_uint ) << 3;
+            bufsize = sizeof(mbedtls_mpi_uint) << 3;
         }
 
         bufsize--;
@@ -1787,16 +1850,16 @@
         /*
          * skip leading 0s
          */
-        if( ei == 0 && state == 0 )
+        if (ei == 0 && state == 0) {
             continue;
+        }
 
-        if( ei == 0 && state == 1 )
-        {
+        if (ei == 0 && state == 1) {
             /*
              * out of window, square W[x_index]
              */
-            MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size, x_index ) );
-            mpi_montmul( &W[x_index], &WW, N, mm, &T );
+            MBEDTLS_MPI_CHK(mpi_select(&WW, W, w_table_used_size, x_index));
+            mpi_montmul(&W[x_index], &WW, N, mm, &T);
             continue;
         }
 
@@ -1806,26 +1869,24 @@
         state = 2;
 
         nbits++;
-        exponent_bits_in_window |= ( ei << ( window_bitsize - nbits ) );
+        exponent_bits_in_window |= (ei << (window_bitsize - nbits));
 
-        if( nbits == window_bitsize )
-        {
+        if (nbits == window_bitsize) {
             /*
              * W[x_index] = W[x_index]^window_bitsize R^-1 mod N
              */
-            for( i = 0; i < window_bitsize; i++ )
-            {
-                MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size,
-                                             x_index ) );
-                mpi_montmul( &W[x_index], &WW, N, mm, &T );
+            for (i = 0; i < window_bitsize; i++) {
+                MBEDTLS_MPI_CHK(mpi_select(&WW, W, w_table_used_size,
+                                           x_index));
+                mpi_montmul(&W[x_index], &WW, N, mm, &T);
             }
 
             /*
              * W[x_index] = W[x_index] * W[exponent_bits_in_window] R^-1 mod N
              */
-            MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size,
-                                         exponent_bits_in_window ) );
-            mpi_montmul( &W[x_index], &WW, N, mm, &T );
+            MBEDTLS_MPI_CHK(mpi_select(&WW, W, w_table_used_size,
+                                       exponent_bits_in_window));
+            mpi_montmul(&W[x_index], &WW, N, mm, &T);
 
             state--;
             nbits = 0;
@@ -1836,88 +1897,87 @@
     /*
      * process the remaining bits
      */
-    for( i = 0; i < nbits; i++ )
-    {
-        MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size, x_index ) );
-        mpi_montmul( &W[x_index], &WW, N, mm, &T );
+    for (i = 0; i < nbits; i++) {
+        MBEDTLS_MPI_CHK(mpi_select(&WW, W, w_table_used_size, x_index));
+        mpi_montmul(&W[x_index], &WW, N, mm, &T);
 
         exponent_bits_in_window <<= 1;
 
-        if( ( exponent_bits_in_window & ( (size_t) 1 << window_bitsize ) ) != 0 )
-        {
-            MBEDTLS_MPI_CHK( mpi_select( &WW, W, w_table_used_size, 1 ) );
-            mpi_montmul( &W[x_index], &WW, N, mm, &T );
+        if ((exponent_bits_in_window & ((size_t) 1 << window_bitsize)) != 0) {
+            MBEDTLS_MPI_CHK(mpi_select(&WW, W, w_table_used_size, 1));
+            mpi_montmul(&W[x_index], &WW, N, mm, &T);
         }
     }
 
     /*
      * W[x_index] = A^E * R * R^-1 mod N = A^E mod N
      */
-    mpi_montred( &W[x_index], N, mm, &T );
+    mpi_montred(&W[x_index], N, mm, &T);
 
-    if( neg && E->n != 0 && ( E->p[0] & 1 ) != 0 )
-    {
+    if (neg && E->n != 0 && (E->p[0] & 1) != 0) {
         W[x_index].s = -1;
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &W[x_index], N, &W[x_index] ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&W[x_index], N, &W[x_index]));
     }
 
     /*
      * Load the result in the output variable.
      */
-    mbedtls_mpi_copy( X, &W[x_index] );
+    mbedtls_mpi_copy(X, &W[x_index]);
 
 cleanup:
 
     /* The first bit of the sliding window is always 1 and therefore the first
      * half of the table was unused. */
-    for( i = w_table_used_size/2; i < w_table_used_size; i++ )
-        mbedtls_mpi_free( &W[i] );
+    for (i = w_table_used_size/2; i < w_table_used_size; i++) {
+        mbedtls_mpi_free(&W[i]);
+    }
 
-    mbedtls_mpi_free( &W[x_index] );
-    mbedtls_mpi_free( &W[1] );
-    mbedtls_mpi_free( &T );
-    mbedtls_mpi_free( &Apos );
-    mbedtls_mpi_free( &WW );
+    mbedtls_mpi_free(&W[x_index]);
+    mbedtls_mpi_free(&W[1]);
+    mbedtls_mpi_free(&T);
+    mbedtls_mpi_free(&Apos);
+    mbedtls_mpi_free(&WW);
 
-    if( prec_RR == NULL || prec_RR->p == NULL )
-        mbedtls_mpi_free( &RR );
+    if (prec_RR == NULL || prec_RR->p == NULL) {
+        mbedtls_mpi_free(&RR);
+    }
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Greatest common divisor: G = gcd(A, B)  (HAC 14.54)
  */
-int mbedtls_mpi_gcd( mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B )
+int mbedtls_mpi_gcd(mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t lz, lzt;
     mbedtls_mpi TA, TB;
 
-    MPI_VALIDATE_RET( G != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( B != NULL );
+    MPI_VALIDATE_RET(G != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(B != NULL);
 
-    mbedtls_mpi_init( &TA ); mbedtls_mpi_init( &TB );
+    mbedtls_mpi_init(&TA); mbedtls_mpi_init(&TB);
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TA, A ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, B ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TA, A));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TB, B));
 
-    lz = mbedtls_mpi_lsb( &TA );
-    lzt = mbedtls_mpi_lsb( &TB );
+    lz = mbedtls_mpi_lsb(&TA);
+    lzt = mbedtls_mpi_lsb(&TB);
 
     /* The loop below gives the correct result when A==0 but not when B==0.
      * So have a special case for B==0. Leverage the fact that we just
      * calculated the lsb and lsb(B)==0 iff B is odd or 0 to make the test
      * slightly more efficient than cmp_int(). */
-    if( lzt == 0 && mbedtls_mpi_get_bit( &TB, 0 ) == 0 )
-    {
-        ret = mbedtls_mpi_copy( G, A );
+    if (lzt == 0 && mbedtls_mpi_get_bit(&TB, 0) == 0) {
+        ret = mbedtls_mpi_copy(G, A);
         goto cleanup;
     }
 
-    if( lzt < lz )
+    if (lzt < lz) {
         lz = lzt;
+    }
 
     TA.s = TB.s = 1;
 
@@ -1954,11 +2014,10 @@
      * TA becomes 0 which ends the loop (TB cannot be 0 if it is right-shifted
      * since in that case TB is calculated from TB-TA with the condition TB>TA).
      */
-    while( mbedtls_mpi_cmp_int( &TA, 0 ) != 0 )
-    {
+    while (mbedtls_mpi_cmp_int(&TA, 0) != 0) {
         /* Divisions by 2 preserve the invariant (I). */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TA, mbedtls_mpi_lsb( &TA ) ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TB, mbedtls_mpi_lsb( &TB ) ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&TA, mbedtls_mpi_lsb(&TA)));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&TB, mbedtls_mpi_lsb(&TB)));
 
         /* Set either TA or TB to |TA-TB|/2. Since TA and TB are both odd,
          * TA-TB is even so the division by 2 has an integer result.
@@ -1967,15 +2026,12 @@
          * also divides TB, and any odd divisor of both TB and |TA-TB|/2 also
          * divides TA.
          */
-        if( mbedtls_mpi_cmp_mpi( &TA, &TB ) >= 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &TA, &TA, &TB ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TA, 1 ) );
-        }
-        else
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &TB, &TB, &TA ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TB, 1 ) );
+        if (mbedtls_mpi_cmp_mpi(&TA, &TB) >= 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_abs(&TA, &TA, &TB));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&TA, 1));
+        } else {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_abs(&TB, &TB, &TA));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&TB, 1));
         }
         /* Note that one of TA or TB is still odd. */
     }
@@ -1989,14 +2045,14 @@
      *   In this case, lz = 0 and B = TB so gcd(A,B) = B = 2^lz * TB as well.
      */
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &TB, lz ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( G, &TB ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_shift_l(&TB, lz));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(G, &TB));
 
 cleanup:
 
-    mbedtls_mpi_free( &TA ); mbedtls_mpi_free( &TB );
+    mbedtls_mpi_free(&TA); mbedtls_mpi_free(&TB);
 
-    return( ret );
+    return ret;
 }
 
 /*
@@ -2005,171 +2061,168 @@
  * is suitable for deterministic ECDSA (see the specification of
  * mbedtls_mpi_random() and the implementation in mbedtls_mpi_fill_random()).
  */
-int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size,
-                     int (*f_rng)(void *, unsigned char *, size_t),
-                     void *p_rng )
+int mbedtls_mpi_fill_random(mbedtls_mpi *X, size_t size,
+                            int (*f_rng)(void *, unsigned char *, size_t),
+                            void *p_rng)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    const size_t limbs = CHARS_TO_LIMBS( size );
+    const size_t limbs = CHARS_TO_LIMBS(size);
 
-    MPI_VALIDATE_RET( X     != NULL );
-    MPI_VALIDATE_RET( f_rng != NULL );
+    MPI_VALIDATE_RET(X     != NULL);
+    MPI_VALIDATE_RET(f_rng != NULL);
 
     /* Ensure that target MPI has exactly the necessary number of limbs */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_resize_clear( X, limbs ) );
-    if( size == 0 )
-        return( 0 );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_resize_clear(X, limbs));
+    if (size == 0) {
+        return 0;
+    }
 
-    ret = mbedtls_mpi_core_fill_random( X->p, X->n, size, f_rng, p_rng );
+    ret = mbedtls_mpi_core_fill_random(X->p, X->n, size, f_rng, p_rng);
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
-int mbedtls_mpi_random( mbedtls_mpi *X,
-                        mbedtls_mpi_sint min,
-                        const mbedtls_mpi *N,
-                        int (*f_rng)(void *, unsigned char *, size_t),
-                        void *p_rng )
+int mbedtls_mpi_random(mbedtls_mpi *X,
+                       mbedtls_mpi_sint min,
+                       const mbedtls_mpi *N,
+                       int (*f_rng)(void *, unsigned char *, size_t),
+                       void *p_rng)
 {
-    if( min < 0 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
-    if( mbedtls_mpi_cmp_int( N, min ) <= 0 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (min < 0) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
+    if (mbedtls_mpi_cmp_int(N, min) <= 0) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
     /* Ensure that target MPI has exactly the same number of limbs
      * as the upper bound, even if the upper bound has leading zeros.
      * This is necessary for mbedtls_mpi_core_random. */
-    int ret = mbedtls_mpi_resize_clear( X, N->n );
-    if( ret != 0 )
-        return( ret );
+    int ret = mbedtls_mpi_resize_clear(X, N->n);
+    if (ret != 0) {
+        return ret;
+    }
 
-    return( mbedtls_mpi_core_random( X->p, min, N->p, X->n, f_rng, p_rng ) );
+    return mbedtls_mpi_core_random(X->p, min, N->p, X->n, f_rng, p_rng);
 }
 
 /*
  * Modular inverse: X = A^-1 mod N  (HAC 14.61 / 14.64)
  */
-int mbedtls_mpi_inv_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *N )
+int mbedtls_mpi_inv_mod(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_mpi G, TA, TU, U1, U2, TB, TV, V1, V2;
-    MPI_VALIDATE_RET( X != NULL );
-    MPI_VALIDATE_RET( A != NULL );
-    MPI_VALIDATE_RET( N != NULL );
+    MPI_VALIDATE_RET(X != NULL);
+    MPI_VALIDATE_RET(A != NULL);
+    MPI_VALIDATE_RET(N != NULL);
 
-    if( mbedtls_mpi_cmp_int( N, 1 ) <= 0 )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (mbedtls_mpi_cmp_int(N, 1) <= 0) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    mbedtls_mpi_init( &TA ); mbedtls_mpi_init( &TU ); mbedtls_mpi_init( &U1 ); mbedtls_mpi_init( &U2 );
-    mbedtls_mpi_init( &G ); mbedtls_mpi_init( &TB ); mbedtls_mpi_init( &TV );
-    mbedtls_mpi_init( &V1 ); mbedtls_mpi_init( &V2 );
+    mbedtls_mpi_init(&TA); mbedtls_mpi_init(&TU); mbedtls_mpi_init(&U1); mbedtls_mpi_init(&U2);
+    mbedtls_mpi_init(&G); mbedtls_mpi_init(&TB); mbedtls_mpi_init(&TV);
+    mbedtls_mpi_init(&V1); mbedtls_mpi_init(&V2);
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, A, N ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_gcd(&G, A, N));
 
-    if( mbedtls_mpi_cmp_int( &G, 1 ) != 0 )
-    {
+    if (mbedtls_mpi_cmp_int(&G, 1) != 0) {
         ret = MBEDTLS_ERR_MPI_NOT_ACCEPTABLE;
         goto cleanup;
     }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &TA, A, N ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TU, &TA ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TB, N ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &TV, N ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&TA, A, N));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TU, &TA));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TB, N));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TV, N));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &U1, 1 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &U2, 0 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &V1, 0 ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &V2, 1 ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&U1, 1));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&U2, 0));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&V1, 0));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&V2, 1));
 
-    do
-    {
-        while( ( TU.p[0] & 1 ) == 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TU, 1 ) );
+    do {
+        while ((TU.p[0] & 1) == 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&TU, 1));
 
-            if( ( U1.p[0] & 1 ) != 0 || ( U2.p[0] & 1 ) != 0 )
-            {
-                MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &U1, &U1, &TB ) );
-                MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U2, &U2, &TA ) );
+            if ((U1.p[0] & 1) != 0 || (U2.p[0] & 1) != 0) {
+                MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&U1, &U1, &TB));
+                MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&U2, &U2, &TA));
             }
 
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &U1, 1 ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &U2, 1 ) );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&U1, 1));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&U2, 1));
         }
 
-        while( ( TV.p[0] & 1 ) == 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &TV, 1 ) );
+        while ((TV.p[0] & 1) == 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&TV, 1));
 
-            if( ( V1.p[0] & 1 ) != 0 || ( V2.p[0] & 1 ) != 0 )
-            {
-                MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &V1, &V1, &TB ) );
-                MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V2, &V2, &TA ) );
+            if ((V1.p[0] & 1) != 0 || (V2.p[0] & 1) != 0) {
+                MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&V1, &V1, &TB));
+                MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&V2, &V2, &TA));
             }
 
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &V1, 1 ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &V2, 1 ) );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&V1, 1));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&V2, 1));
         }
 
-        if( mbedtls_mpi_cmp_mpi( &TU, &TV ) >= 0 )
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &TU, &TU, &TV ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U1, &U1, &V1 ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U2, &U2, &V2 ) );
+        if (mbedtls_mpi_cmp_mpi(&TU, &TV) >= 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&TU, &TU, &TV));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&U1, &U1, &V1));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&U2, &U2, &V2));
+        } else {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&TV, &TV, &TU));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&V1, &V1, &U1));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&V2, &V2, &U2));
         }
-        else
-        {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &TV, &TV, &TU ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V1, &V1, &U1 ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V2, &V2, &U2 ) );
-        }
+    } while (mbedtls_mpi_cmp_int(&TU, 0) != 0);
+
+    while (mbedtls_mpi_cmp_int(&V1, 0) < 0) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_mpi(&V1, &V1, N));
     }
-    while( mbedtls_mpi_cmp_int( &TU, 0 ) != 0 );
 
-    while( mbedtls_mpi_cmp_int( &V1, 0 ) < 0 )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &V1, &V1, N ) );
+    while (mbedtls_mpi_cmp_mpi(&V1, N) >= 0) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_sub_mpi(&V1, &V1, N));
+    }
 
-    while( mbedtls_mpi_cmp_mpi( &V1, N ) >= 0 )
-        MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &V1, &V1, N ) );
-
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( X, &V1 ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(X, &V1));
 
 cleanup:
 
-    mbedtls_mpi_free( &TA ); mbedtls_mpi_free( &TU ); mbedtls_mpi_free( &U1 ); mbedtls_mpi_free( &U2 );
-    mbedtls_mpi_free( &G ); mbedtls_mpi_free( &TB ); mbedtls_mpi_free( &TV );
-    mbedtls_mpi_free( &V1 ); mbedtls_mpi_free( &V2 );
+    mbedtls_mpi_free(&TA); mbedtls_mpi_free(&TU); mbedtls_mpi_free(&U1); mbedtls_mpi_free(&U2);
+    mbedtls_mpi_free(&G); mbedtls_mpi_free(&TB); mbedtls_mpi_free(&TV);
+    mbedtls_mpi_free(&V1); mbedtls_mpi_free(&V2);
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_GENPRIME)
 
 static const int small_prime[] =
 {
-        3,    5,    7,   11,   13,   17,   19,   23,
-       29,   31,   37,   41,   43,   47,   53,   59,
-       61,   67,   71,   73,   79,   83,   89,   97,
-      101,  103,  107,  109,  113,  127,  131,  137,
-      139,  149,  151,  157,  163,  167,  173,  179,
-      181,  191,  193,  197,  199,  211,  223,  227,
-      229,  233,  239,  241,  251,  257,  263,  269,
-      271,  277,  281,  283,  293,  307,  311,  313,
-      317,  331,  337,  347,  349,  353,  359,  367,
-      373,  379,  383,  389,  397,  401,  409,  419,
-      421,  431,  433,  439,  443,  449,  457,  461,
-      463,  467,  479,  487,  491,  499,  503,  509,
-      521,  523,  541,  547,  557,  563,  569,  571,
-      577,  587,  593,  599,  601,  607,  613,  617,
-      619,  631,  641,  643,  647,  653,  659,  661,
-      673,  677,  683,  691,  701,  709,  719,  727,
-      733,  739,  743,  751,  757,  761,  769,  773,
-      787,  797,  809,  811,  821,  823,  827,  829,
-      839,  853,  857,  859,  863,  877,  881,  883,
-      887,  907,  911,  919,  929,  937,  941,  947,
-      953,  967,  971,  977,  983,  991,  997, -103
+    3,    5,    7,   11,   13,   17,   19,   23,
+    29,   31,   37,   41,   43,   47,   53,   59,
+    61,   67,   71,   73,   79,   83,   89,   97,
+    101,  103,  107,  109,  113,  127,  131,  137,
+    139,  149,  151,  157,  163,  167,  173,  179,
+    181,  191,  193,  197,  199,  211,  223,  227,
+    229,  233,  239,  241,  251,  257,  263,  269,
+    271,  277,  281,  283,  293,  307,  311,  313,
+    317,  331,  337,  347,  349,  353,  359,  367,
+    373,  379,  383,  389,  397,  401,  409,  419,
+    421,  431,  433,  439,  443,  449,  457,  461,
+    463,  467,  479,  487,  491,  499,  503,  509,
+    521,  523,  541,  547,  557,  563,  569,  571,
+    577,  587,  593,  599,  601,  607,  613,  617,
+    619,  631,  641,  643,  647,  653,  659,  661,
+    673,  677,  683,  691,  701,  709,  719,  727,
+    733,  739,  743,  751,  757,  761,  769,  773,
+    787,  797,  809,  811,  821,  823,  827,  829,
+    839,  853,  857,  859,  863,  877,  881,  883,
+    887,  907,  911,  919,  929,  937,  941,  947,
+    953,  967,  971,  977,  983,  991,  997, -103
 };
 
 /*
@@ -2181,70 +2234,71 @@
  * MBEDTLS_ERR_MPI_NOT_ACCEPTABLE: certain non-prime
  * other negative: error
  */
-static int mpi_check_small_factors( const mbedtls_mpi *X )
+static int mpi_check_small_factors(const mbedtls_mpi *X)
 {
     int ret = 0;
     size_t i;
     mbedtls_mpi_uint r;
 
-    if( ( X->p[0] & 1 ) == 0 )
-        return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE );
+    if ((X->p[0] & 1) == 0) {
+        return MBEDTLS_ERR_MPI_NOT_ACCEPTABLE;
+    }
 
-    for( i = 0; small_prime[i] > 0; i++ )
-    {
-        if( mbedtls_mpi_cmp_int( X, small_prime[i] ) <= 0 )
-            return( 1 );
+    for (i = 0; small_prime[i] > 0; i++) {
+        if (mbedtls_mpi_cmp_int(X, small_prime[i]) <= 0) {
+            return 1;
+        }
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, small_prime[i] ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mod_int(&r, X, small_prime[i]));
 
-        if( r == 0 )
-            return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE );
+        if (r == 0) {
+            return MBEDTLS_ERR_MPI_NOT_ACCEPTABLE;
+        }
     }
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
 /*
  * Miller-Rabin pseudo-primality test  (HAC 4.24)
  */
-static int mpi_miller_rabin( const mbedtls_mpi *X, size_t rounds,
-                             int (*f_rng)(void *, unsigned char *, size_t),
-                             void *p_rng )
+static int mpi_miller_rabin(const mbedtls_mpi *X, size_t rounds,
+                            int (*f_rng)(void *, unsigned char *, size_t),
+                            void *p_rng)
 {
     int ret, count;
     size_t i, j, k, s;
     mbedtls_mpi W, R, T, A, RR;
 
-    MPI_VALIDATE_RET( X     != NULL );
-    MPI_VALIDATE_RET( f_rng != NULL );
+    MPI_VALIDATE_RET(X     != NULL);
+    MPI_VALIDATE_RET(f_rng != NULL);
 
-    mbedtls_mpi_init( &W ); mbedtls_mpi_init( &R );
-    mbedtls_mpi_init( &T ); mbedtls_mpi_init( &A );
-    mbedtls_mpi_init( &RR );
+    mbedtls_mpi_init(&W); mbedtls_mpi_init(&R);
+    mbedtls_mpi_init(&T); mbedtls_mpi_init(&A);
+    mbedtls_mpi_init(&RR);
 
     /*
      * W = |X| - 1
      * R = W >> lsb( W )
      */
-    MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &W, X, 1 ) );
-    s = mbedtls_mpi_lsb( &W );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R, &W ) );
-    MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &R, s ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_sub_int(&W, X, 1));
+    s = mbedtls_mpi_lsb(&W);
+    MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&R, &W));
+    MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&R, s));
 
-    for( i = 0; i < rounds; i++ )
-    {
+    for (i = 0; i < rounds; i++) {
         /*
          * pick a random A, 1 < A < |X| - 1
          */
         count = 0;
         do {
-            MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &A, X->n * ciL, f_rng, p_rng ) );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(&A, X->n * ciL, f_rng, p_rng));
 
-            j = mbedtls_mpi_bitlen( &A );
-            k = mbedtls_mpi_bitlen( &W );
+            j = mbedtls_mpi_bitlen(&A);
+            k = mbedtls_mpi_bitlen(&W);
             if (j > k) {
-                A.p[A.n - 1] &= ( (mbedtls_mpi_uint) 1 << ( k - ( A.n - 1 ) * biL - 1 ) ) - 1;
+                A.p[A.n - 1] &= ((mbedtls_mpi_uint) 1 << (k - (A.n - 1) * biL - 1)) - 1;
             }
 
             if (count++ > 30) {
@@ -2252,29 +2306,30 @@
                 goto cleanup;
             }
 
-        } while ( mbedtls_mpi_cmp_mpi( &A, &W ) >= 0 ||
-                  mbedtls_mpi_cmp_int( &A, 1 )  <= 0    );
+        } while (mbedtls_mpi_cmp_mpi(&A, &W) >= 0 ||
+                 mbedtls_mpi_cmp_int(&A, 1)  <= 0);
 
         /*
          * A = A^R mod |X|
          */
-        MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &A, &A, &R, X, &RR ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&A, &A, &R, X, &RR));
 
-        if( mbedtls_mpi_cmp_mpi( &A, &W ) == 0 ||
-            mbedtls_mpi_cmp_int( &A,  1 ) == 0 )
+        if (mbedtls_mpi_cmp_mpi(&A, &W) == 0 ||
+            mbedtls_mpi_cmp_int(&A,  1) == 0) {
             continue;
+        }
 
         j = 1;
-        while( j < s && mbedtls_mpi_cmp_mpi( &A, &W ) != 0 )
-        {
+        while (j < s && mbedtls_mpi_cmp_mpi(&A, &W) != 0) {
             /*
              * A = A * A mod |X|
              */
-            MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &A, &A ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &A, &T, X  ) );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&T, &A, &A));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_mod_mpi(&A, &T, X));
 
-            if( mbedtls_mpi_cmp_int( &A, 1 ) == 0 )
+            if (mbedtls_mpi_cmp_int(&A, 1) == 0) {
                 break;
+            }
 
             j++;
         }
@@ -2282,54 +2337,55 @@
         /*
          * not prime if A != |X| - 1 or A == 1
          */
-        if( mbedtls_mpi_cmp_mpi( &A, &W ) != 0 ||
-            mbedtls_mpi_cmp_int( &A,  1 ) == 0 )
-        {
+        if (mbedtls_mpi_cmp_mpi(&A, &W) != 0 ||
+            mbedtls_mpi_cmp_int(&A,  1) == 0) {
             ret = MBEDTLS_ERR_MPI_NOT_ACCEPTABLE;
             break;
         }
     }
 
 cleanup:
-    mbedtls_mpi_free( &W ); mbedtls_mpi_free( &R );
-    mbedtls_mpi_free( &T ); mbedtls_mpi_free( &A );
-    mbedtls_mpi_free( &RR );
+    mbedtls_mpi_free(&W); mbedtls_mpi_free(&R);
+    mbedtls_mpi_free(&T); mbedtls_mpi_free(&A);
+    mbedtls_mpi_free(&RR);
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Pseudo-primality test: small factors, then Miller-Rabin
  */
-int mbedtls_mpi_is_prime_ext( const mbedtls_mpi *X, int rounds,
-                              int (*f_rng)(void *, unsigned char *, size_t),
-                              void *p_rng )
+int mbedtls_mpi_is_prime_ext(const mbedtls_mpi *X, int rounds,
+                             int (*f_rng)(void *, unsigned char *, size_t),
+                             void *p_rng)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_mpi XX;
-    MPI_VALIDATE_RET( X     != NULL );
-    MPI_VALIDATE_RET( f_rng != NULL );
+    MPI_VALIDATE_RET(X     != NULL);
+    MPI_VALIDATE_RET(f_rng != NULL);
 
     XX.s = 1;
     XX.n = X->n;
     XX.p = X->p;
 
-    if( mbedtls_mpi_cmp_int( &XX, 0 ) == 0 ||
-        mbedtls_mpi_cmp_int( &XX, 1 ) == 0 )
-        return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE );
-
-    if( mbedtls_mpi_cmp_int( &XX, 2 ) == 0 )
-        return( 0 );
-
-    if( ( ret = mpi_check_small_factors( &XX ) ) != 0 )
-    {
-        if( ret == 1 )
-            return( 0 );
-
-        return( ret );
+    if (mbedtls_mpi_cmp_int(&XX, 0) == 0 ||
+        mbedtls_mpi_cmp_int(&XX, 1) == 0) {
+        return MBEDTLS_ERR_MPI_NOT_ACCEPTABLE;
     }
 
-    return( mpi_miller_rabin( &XX, rounds, f_rng, p_rng ) );
+    if (mbedtls_mpi_cmp_int(&XX, 2) == 0) {
+        return 0;
+    }
+
+    if ((ret = mpi_check_small_factors(&XX)) != 0) {
+        if (ret == 1) {
+            return 0;
+        }
+
+        return ret;
+    }
+
+    return mpi_miller_rabin(&XX, rounds, f_rng, p_rng);
 }
 
 /*
@@ -2339,9 +2395,9 @@
  * be either 1024 bits or 1536 bits long, and flags must contain
  * MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR.
  */
-int mbedtls_mpi_gen_prime( mbedtls_mpi *X, size_t nbits, int flags,
-                   int (*f_rng)(void *, unsigned char *, size_t),
-                   void *p_rng )
+int mbedtls_mpi_gen_prime(mbedtls_mpi *X, size_t nbits, int flags,
+                          int (*f_rng)(void *, unsigned char *, size_t),
+                          void *p_rng)
 {
 #ifdef MBEDTLS_HAVE_INT64
 // ceil(2^63.5)
@@ -2356,56 +2412,55 @@
     mbedtls_mpi_uint r;
     mbedtls_mpi Y;
 
-    MPI_VALIDATE_RET( X     != NULL );
-    MPI_VALIDATE_RET( f_rng != NULL );
+    MPI_VALIDATE_RET(X     != NULL);
+    MPI_VALIDATE_RET(f_rng != NULL);
 
-    if( nbits < 3 || nbits > MBEDTLS_MPI_MAX_BITS )
-        return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
+    if (nbits < 3 || nbits > MBEDTLS_MPI_MAX_BITS) {
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
+    }
 
-    mbedtls_mpi_init( &Y );
+    mbedtls_mpi_init(&Y);
 
-    n = BITS_TO_LIMBS( nbits );
+    n = BITS_TO_LIMBS(nbits);
 
-    if( ( flags & MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR ) == 0 )
-    {
+    if ((flags & MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR) == 0) {
         /*
          * 2^-80 error probability, number of rounds chosen per HAC, table 4.4
          */
-        rounds = ( ( nbits >= 1300 ) ?  2 : ( nbits >=  850 ) ?  3 :
-                   ( nbits >=  650 ) ?  4 : ( nbits >=  350 ) ?  8 :
-                   ( nbits >=  250 ) ? 12 : ( nbits >=  150 ) ? 18 : 27 );
-    }
-    else
-    {
+        rounds = ((nbits >= 1300) ?  2 : (nbits >=  850) ?  3 :
+                  (nbits >=  650) ?  4 : (nbits >=  350) ?  8 :
+                  (nbits >=  250) ? 12 : (nbits >=  150) ? 18 : 27);
+    } else {
         /*
          * 2^-100 error probability, number of rounds computed based on HAC,
          * fact 4.48
          */
-        rounds = ( ( nbits >= 1450 ) ?  4 : ( nbits >=  1150 ) ?  5 :
-                   ( nbits >= 1000 ) ?  6 : ( nbits >=   850 ) ?  7 :
-                   ( nbits >=  750 ) ?  8 : ( nbits >=   500 ) ? 13 :
-                   ( nbits >=  250 ) ? 28 : ( nbits >=   150 ) ? 40 : 51 );
+        rounds = ((nbits >= 1450) ?  4 : (nbits >=  1150) ?  5 :
+                  (nbits >= 1000) ?  6 : (nbits >=   850) ?  7 :
+                  (nbits >=  750) ?  8 : (nbits >=   500) ? 13 :
+                  (nbits >=  250) ? 28 : (nbits >=   150) ? 40 : 51);
     }
 
-    while( 1 )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( X, n * ciL, f_rng, p_rng ) );
+    while (1) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_fill_random(X, n * ciL, f_rng, p_rng));
         /* make sure generated number is at least (nbits-1)+0.5 bits (FIPS 186-4 §B.3.3 steps 4.4, 5.5) */
-        if( X->p[n-1] < CEIL_MAXUINT_DIV_SQRT2 ) continue;
+        if (X->p[n-1] < CEIL_MAXUINT_DIV_SQRT2) {
+            continue;
+        }
 
         k = n * biL;
-        if( k > nbits ) MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( X, k - nbits ) );
+        if (k > nbits) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(X, k - nbits));
+        }
         X->p[0] |= 1;
 
-        if( ( flags & MBEDTLS_MPI_GEN_PRIME_FLAG_DH ) == 0 )
-        {
-            ret = mbedtls_mpi_is_prime_ext( X, rounds, f_rng, p_rng );
+        if ((flags & MBEDTLS_MPI_GEN_PRIME_FLAG_DH) == 0) {
+            ret = mbedtls_mpi_is_prime_ext(X, rounds, f_rng, p_rng);
 
-            if( ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE )
+            if (ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) {
                 goto cleanup;
-        }
-        else
-        {
+            }
+        } else {
             /*
              * A necessary condition for Y and X = 2Y + 1 to be prime
              * is X = 2 mod 3 (which is equivalent to Y = 2 mod 3).
@@ -2414,49 +2469,51 @@
 
             X->p[0] |= 2;
 
-            MBEDTLS_MPI_CHK( mbedtls_mpi_mod_int( &r, X, 3 ) );
-            if( r == 0 )
-                MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, X, 8 ) );
-            else if( r == 1 )
-                MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( X, X, 4 ) );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_mod_int(&r, X, 3));
+            if (r == 0) {
+                MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(X, X, 8));
+            } else if (r == 1) {
+                MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(X, X, 4));
+            }
 
             /* Set Y = (X-1) / 2, which is X / 2 because X is odd */
-            MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Y, X ) );
-            MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &Y, 1 ) );
+            MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&Y, X));
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&Y, 1));
 
-            while( 1 )
-            {
+            while (1) {
                 /*
                  * First, check small factors for X and Y
                  * before doing Miller-Rabin on any of them
                  */
-                if( ( ret = mpi_check_small_factors(  X         ) ) == 0 &&
-                    ( ret = mpi_check_small_factors( &Y         ) ) == 0 &&
-                    ( ret = mpi_miller_rabin(  X, rounds, f_rng, p_rng  ) )
-                                                                    == 0 &&
-                    ( ret = mpi_miller_rabin( &Y, rounds, f_rng, p_rng  ) )
-                                                                    == 0 )
+                if ((ret = mpi_check_small_factors(X)) == 0 &&
+                    (ret = mpi_check_small_factors(&Y)) == 0 &&
+                    (ret = mpi_miller_rabin(X, rounds, f_rng, p_rng))
+                    == 0 &&
+                    (ret = mpi_miller_rabin(&Y, rounds, f_rng, p_rng))
+                    == 0) {
                     goto cleanup;
+                }
 
-                if( ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE )
+                if (ret != MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) {
                     goto cleanup;
+                }
 
                 /*
                  * Next candidates. We want to preserve Y = (X-1) / 2 and
                  * Y = 1 mod 2 and Y = 2 mod 3 (eq X = 3 mod 4 and X = 2 mod 3)
                  * so up Y by 6 and X by 12.
                  */
-                MBEDTLS_MPI_CHK( mbedtls_mpi_add_int(  X,  X, 12 ) );
-                MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &Y, &Y, 6  ) );
+                MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(X,  X, 12));
+                MBEDTLS_MPI_CHK(mbedtls_mpi_add_int(&Y, &Y, 6));
             }
         }
     }
 
 cleanup:
 
-    mbedtls_mpi_free( &Y );
+    mbedtls_mpi_free(&Y);
 
-    return( ret );
+    return ret;
 }
 
 #endif /* MBEDTLS_GENPRIME */
@@ -2475,162 +2532,173 @@
 /*
  * Checkup routine
  */
-int mbedtls_mpi_self_test( int verbose )
+int mbedtls_mpi_self_test(int verbose)
 {
     int ret, i;
     mbedtls_mpi A, E, N, X, Y, U, V;
 
-    mbedtls_mpi_init( &A ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &N ); mbedtls_mpi_init( &X );
-    mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &U ); mbedtls_mpi_init( &V );
+    mbedtls_mpi_init(&A); mbedtls_mpi_init(&E); mbedtls_mpi_init(&N); mbedtls_mpi_init(&X);
+    mbedtls_mpi_init(&Y); mbedtls_mpi_init(&U); mbedtls_mpi_init(&V);
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &A, 16,
-        "EFE021C2645FD1DC586E69184AF4A31E" \
-        "D5F53E93B5F123FA41680867BA110131" \
-        "944FE7952E2517337780CB0DB80E61AA" \
-        "E7C8DDC6C5C6AADEB34EB38A2F40D5E6" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&A, 16,
+                                            "EFE021C2645FD1DC586E69184AF4A31E" \
+                                            "D5F53E93B5F123FA41680867BA110131" \
+                                            "944FE7952E2517337780CB0DB80E61AA" \
+                                            "E7C8DDC6C5C6AADEB34EB38A2F40D5E6"));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &E, 16,
-        "B2E7EFD37075B9F03FF989C7C5051C20" \
-        "34D2A323810251127E7BF8625A4F49A5" \
-        "F3E27F4DA8BD59C47D6DAABA4C8127BD" \
-        "5B5C25763222FEFCCFC38B832366C29E" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&E, 16,
+                                            "B2E7EFD37075B9F03FF989C7C5051C20" \
+                                            "34D2A323810251127E7BF8625A4F49A5" \
+                                            "F3E27F4DA8BD59C47D6DAABA4C8127BD" \
+                                            "5B5C25763222FEFCCFC38B832366C29E"));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &N, 16,
-        "0066A198186C18C10B2F5ED9B522752A" \
-        "9830B69916E535C8F047518A889A43A5" \
-        "94B6BED27A168D31D4A52F88925AA8F5" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&N, 16,
+                                            "0066A198186C18C10B2F5ED9B522752A" \
+                                            "9830B69916E535C8F047518A889A43A5" \
+                                            "94B6BED27A168D31D4A52F88925AA8F5"));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &X, &A, &N ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&X, &A, &N));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16,
-        "602AB7ECA597A3D6B56FF9829A5E8B85" \
-        "9E857EA95A03512E2BAE7391688D264A" \
-        "A5663B0341DB9CCFD2C4C5F421FEC814" \
-        "8001B72E848A38CAE1C65F78E56ABDEF" \
-        "E12D3C039B8A02D6BE593F0BBBDA56F1" \
-        "ECF677152EF804370C1A305CAF3B5BF1" \
-        "30879B56C61DE584A0F53A2447A51E" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&U, 16,
+                                            "602AB7ECA597A3D6B56FF9829A5E8B85" \
+                                            "9E857EA95A03512E2BAE7391688D264A" \
+                                            "A5663B0341DB9CCFD2C4C5F421FEC814" \
+                                            "8001B72E848A38CAE1C65F78E56ABDEF" \
+                                            "E12D3C039B8A02D6BE593F0BBBDA56F1" \
+                                            "ECF677152EF804370C1A305CAF3B5BF1" \
+                                            "30879B56C61DE584A0F53A2447A51E"));
 
-    if( verbose != 0 )
-        mbedtls_printf( "  MPI test #1 (mul_mpi): " );
+    if (verbose != 0) {
+        mbedtls_printf("  MPI test #1 (mul_mpi): ");
+    }
 
-    if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_mpi_cmp_mpi(&X, &U) != 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");
+    }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &X, &Y, &A, &N ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_div_mpi(&X, &Y, &A, &N));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16,
-        "256567336059E52CAE22925474705F39A94" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&U, 16,
+                                            "256567336059E52CAE22925474705F39A94"));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &V, 16,
-        "6613F26162223DF488E9CD48CC132C7A" \
-        "0AC93C701B001B092E4E5B9F73BCD27B" \
-        "9EE50D0657C77F374E903CDFA4C642" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&V, 16,
+                                            "6613F26162223DF488E9CD48CC132C7A" \
+                                            "0AC93C701B001B092E4E5B9F73BCD27B" \
+                                            "9EE50D0657C77F374E903CDFA4C642"));
 
-    if( verbose != 0 )
-        mbedtls_printf( "  MPI test #2 (div_mpi): " );
+    if (verbose != 0) {
+        mbedtls_printf("  MPI test #2 (div_mpi): ");
+    }
 
-    if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 ||
-        mbedtls_mpi_cmp_mpi( &Y, &V ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_mpi_cmp_mpi(&X, &U) != 0 ||
+        mbedtls_mpi_cmp_mpi(&Y, &V) != 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");
+    }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &X, &A, &E, &N, NULL ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_exp_mod(&X, &A, &E, &N, NULL));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16,
-        "36E139AEA55215609D2816998ED020BB" \
-        "BD96C37890F65171D948E9BC7CBAA4D9" \
-        "325D24D6A3C12710F10A09FA08AB87" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&U, 16,
+                                            "36E139AEA55215609D2816998ED020BB" \
+                                            "BD96C37890F65171D948E9BC7CBAA4D9" \
+                                            "325D24D6A3C12710F10A09FA08AB87"));
 
-    if( verbose != 0 )
-        mbedtls_printf( "  MPI test #3 (exp_mod): " );
+    if (verbose != 0) {
+        mbedtls_printf("  MPI test #3 (exp_mod): ");
+    }
 
-    if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_mpi_cmp_mpi(&X, &U) != 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");
+    }
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &X, &A, &N ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_inv_mod(&X, &A, &N));
 
-    MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &U, 16,
-        "003A0AAEDD7E784FC07D8F9EC6E3BFD5" \
-        "C3DBA76456363A10869622EAC2DD84EC" \
-        "C5B8A74DAC4D09E03B5E0BE779F2DF61" ) );
+    MBEDTLS_MPI_CHK(mbedtls_mpi_read_string(&U, 16,
+                                            "003A0AAEDD7E784FC07D8F9EC6E3BFD5" \
+                                            "C3DBA76456363A10869622EAC2DD84EC" \
+                                            "C5B8A74DAC4D09E03B5E0BE779F2DF61"));
 
-    if( verbose != 0 )
-        mbedtls_printf( "  MPI test #4 (inv_mod): " );
+    if (verbose != 0) {
+        mbedtls_printf("  MPI test #4 (inv_mod): ");
+    }
 
-    if( mbedtls_mpi_cmp_mpi( &X, &U ) != 0 )
-    {
-        if( verbose != 0 )
-            mbedtls_printf( "failed\n" );
+    if (mbedtls_mpi_cmp_mpi(&X, &U) != 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( verbose != 0 )
-        mbedtls_printf( "  MPI test #5 (simple gcd): " );
+    if (verbose != 0) {
+        mbedtls_printf("  MPI test #5 (simple gcd): ");
+    }
 
-    for( i = 0; i < GCD_PAIR_COUNT; i++ )
-    {
-        MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &X, gcd_pairs[i][0] ) );
-        MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &Y, gcd_pairs[i][1] ) );
+    for (i = 0; i < GCD_PAIR_COUNT; i++) {
+        MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&X, gcd_pairs[i][0]));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_lset(&Y, gcd_pairs[i][1]));
 
-        MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &A, &X, &Y ) );
+        MBEDTLS_MPI_CHK(mbedtls_mpi_gcd(&A, &X, &Y));
 
-        if( mbedtls_mpi_cmp_int( &A, gcd_pairs[i][2] ) != 0 )
-        {
-            if( verbose != 0 )
-                mbedtls_printf( "failed at %d\n", i );
+        if (mbedtls_mpi_cmp_int(&A, gcd_pairs[i][2]) != 0) {
+            if (verbose != 0) {
+                mbedtls_printf("failed at %d\n", i);
+            }
 
             ret = 1;
             goto cleanup;
         }
     }
 
-    if( verbose != 0 )
-        mbedtls_printf( "passed\n" );
+    if (verbose != 0) {
+        mbedtls_printf("passed\n");
+    }
 
 cleanup:
 
-    if( ret != 0 && verbose != 0 )
-        mbedtls_printf( "Unexpected error, return code = %08X\n", (unsigned int) ret );
+    if (ret != 0 && verbose != 0) {
+        mbedtls_printf("Unexpected error, return code = %08X\n", (unsigned int) ret);
+    }
 
-    mbedtls_mpi_free( &A ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &N ); mbedtls_mpi_free( &X );
-    mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &U ); mbedtls_mpi_free( &V );
+    mbedtls_mpi_free(&A); mbedtls_mpi_free(&E); mbedtls_mpi_free(&N); mbedtls_mpi_free(&X);
+    mbedtls_mpi_free(&Y); mbedtls_mpi_free(&U); mbedtls_mpi_free(&V);
 
-    if( verbose != 0 )
-        mbedtls_printf( "\n" );
+    if (verbose != 0) {
+        mbedtls_printf("\n");
+    }
 
-    return( ret );
+    return ret;
 }
 
 #endif /* MBEDTLS_SELF_TEST */