Switch to the new code style
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/library/ctr_drbg.c b/library/ctr_drbg.c
index f5c5e7b..13fa6d4 100644
--- a/library/ctr_drbg.c
+++ b/library/ctr_drbg.c
@@ -41,10 +41,10 @@
/*
* CTR_DRBG context initialization
*/
-void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx )
+void mbedtls_ctr_drbg_init(mbedtls_ctr_drbg_context *ctx)
{
- memset( ctx, 0, sizeof( mbedtls_ctr_drbg_context ) );
- mbedtls_aes_init( &ctx->aes_ctx );
+ memset(ctx, 0, sizeof(mbedtls_ctr_drbg_context));
+ mbedtls_aes_init(&ctx->aes_ctx);
/* Indicate that the entropy nonce length is not set explicitly.
* See mbedtls_ctr_drbg_set_nonce_len(). */
ctx->reseed_counter = -1;
@@ -56,50 +56,55 @@
* This function resets CTR_DRBG context to the state immediately
* after initial call of mbedtls_ctr_drbg_init().
*/
-void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx )
+void mbedtls_ctr_drbg_free(mbedtls_ctr_drbg_context *ctx)
{
- if( ctx == NULL )
+ if (ctx == NULL) {
return;
+ }
#if defined(MBEDTLS_THREADING_C)
/* The mutex is initialized iff f_entropy is set. */
- if( ctx->f_entropy != NULL )
- mbedtls_mutex_free( &ctx->mutex );
+ if (ctx->f_entropy != NULL) {
+ mbedtls_mutex_free(&ctx->mutex);
+ }
#endif
- mbedtls_aes_free( &ctx->aes_ctx );
- mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ctr_drbg_context ) );
+ mbedtls_aes_free(&ctx->aes_ctx);
+ mbedtls_platform_zeroize(ctx, sizeof(mbedtls_ctr_drbg_context));
ctx->reseed_interval = MBEDTLS_CTR_DRBG_RESEED_INTERVAL;
ctx->reseed_counter = -1;
}
-void mbedtls_ctr_drbg_set_prediction_resistance( mbedtls_ctr_drbg_context *ctx,
- int resistance )
+void mbedtls_ctr_drbg_set_prediction_resistance(mbedtls_ctr_drbg_context *ctx,
+ int resistance)
{
ctx->prediction_resistance = resistance;
}
-void mbedtls_ctr_drbg_set_entropy_len( mbedtls_ctr_drbg_context *ctx,
- size_t len )
+void mbedtls_ctr_drbg_set_entropy_len(mbedtls_ctr_drbg_context *ctx,
+ size_t len)
{
ctx->entropy_len = len;
}
-int mbedtls_ctr_drbg_set_nonce_len( mbedtls_ctr_drbg_context *ctx,
- size_t len )
+int mbedtls_ctr_drbg_set_nonce_len(mbedtls_ctr_drbg_context *ctx,
+ size_t len)
{
/* If mbedtls_ctr_drbg_seed() has already been called, it's
* too late. Return the error code that's closest to making sense. */
- if( ctx->f_entropy != NULL )
- return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+ if (ctx->f_entropy != NULL) {
+ return MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED;
+ }
- if( len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+ if (len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
#if SIZE_MAX > INT_MAX
/* This shouldn't be an issue because
* MBEDTLS_CTR_DRBG_MAX_SEED_INPUT < INT_MAX in any sensible
* configuration, but make sure anyway. */
- if( len > INT_MAX )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+ if (len > INT_MAX) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
#endif
/* For backward compatibility with Mbed TLS <= 2.19, store the
@@ -107,17 +112,17 @@
* used until after the initial seeding. */
/* Due to the capping of len above, the value fits in an int. */
ctx->reseed_counter = (int) len;
- return( 0 );
+ return 0;
}
-void mbedtls_ctr_drbg_set_reseed_interval( mbedtls_ctr_drbg_context *ctx,
- int interval )
+void mbedtls_ctr_drbg_set_reseed_interval(mbedtls_ctr_drbg_context *ctx,
+ int interval)
{
ctx->reseed_interval = interval;
}
-static int block_cipher_df( unsigned char *output,
- const unsigned char *data, size_t data_len )
+static int block_cipher_df(unsigned char *output,
+ const unsigned char *data, size_t data_len)
{
unsigned char buf[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
MBEDTLS_CTR_DRBG_BLOCKSIZE + 16];
@@ -131,12 +136,13 @@
int i, j;
size_t buf_len, use_len;
- if( data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+ if (data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
- memset( buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
- MBEDTLS_CTR_DRBG_BLOCKSIZE + 16 );
- mbedtls_aes_init( &aes_ctx );
+ memset(buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
+ MBEDTLS_CTR_DRBG_BLOCKSIZE + 16);
+ mbedtls_aes_init(&aes_ctx);
/*
* Construct IV (16 bytes) and S in buffer
@@ -146,47 +152,44 @@
* (Total is padded to a multiple of 16-bytes with zeroes)
*/
p = buf + MBEDTLS_CTR_DRBG_BLOCKSIZE;
- MBEDTLS_PUT_UINT32_BE( data_len, p, 0);
+ MBEDTLS_PUT_UINT32_BE(data_len, p, 0);
p += 4 + 3;
*p++ = MBEDTLS_CTR_DRBG_SEEDLEN;
- memcpy( p, data, data_len );
+ memcpy(p, data, data_len);
p[data_len] = 0x80;
buf_len = MBEDTLS_CTR_DRBG_BLOCKSIZE + 8 + data_len + 1;
- for( i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++ )
+ for (i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++) {
key[i] = i;
+ }
- if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, key,
- MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
- {
+ if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, key,
+ MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
goto exit;
}
/*
* Reduce data to MBEDTLS_CTR_DRBG_SEEDLEN bytes of data
*/
- for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
- {
+ for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
p = buf;
- memset( chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+ memset(chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE);
use_len = buf_len;
- while( use_len > 0 )
- {
- mbedtls_xor( chain, chain, p, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+ while (use_len > 0) {
+ mbedtls_xor(chain, chain, p, MBEDTLS_CTR_DRBG_BLOCKSIZE);
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
- use_len -= ( use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE ) ?
+ use_len -= (use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE) ?
MBEDTLS_CTR_DRBG_BLOCKSIZE : use_len;
- if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT,
- chain, chain ) ) != 0 )
- {
+ if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT,
+ chain, chain)) != 0) {
goto exit;
}
}
- memcpy( tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+ memcpy(tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE);
/*
* Update IV
@@ -197,42 +200,38 @@
/*
* Do final encryption with reduced data
*/
- if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, tmp,
- MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
- {
+ if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, tmp,
+ MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
goto exit;
}
iv = tmp + MBEDTLS_CTR_DRBG_KEYSIZE;
p = output;
- for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
- {
- if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT,
- iv, iv ) ) != 0 )
- {
+ for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
+ if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT,
+ iv, iv)) != 0) {
goto exit;
}
- memcpy( p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE );
+ memcpy(p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE);
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
}
exit:
- mbedtls_aes_free( &aes_ctx );
+ mbedtls_aes_free(&aes_ctx);
/*
- * tidy up the stack
- */
- mbedtls_platform_zeroize( buf, sizeof( buf ) );
- mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
- mbedtls_platform_zeroize( key, sizeof( key ) );
- mbedtls_platform_zeroize( chain, sizeof( chain ) );
- if( 0 != ret )
- {
+ * tidy up the stack
+ */
+ mbedtls_platform_zeroize(buf, sizeof(buf));
+ mbedtls_platform_zeroize(tmp, sizeof(tmp));
+ mbedtls_platform_zeroize(key, sizeof(key));
+ mbedtls_platform_zeroize(chain, sizeof(chain));
+ if (0 != ret) {
/*
- * wipe partial seed from memory
- */
- mbedtls_platform_zeroize( output, MBEDTLS_CTR_DRBG_SEEDLEN );
+ * wipe partial seed from memory
+ */
+ mbedtls_platform_zeroize(output, MBEDTLS_CTR_DRBG_SEEDLEN);
}
- return( ret );
+ return ret;
}
/* CTR_DRBG_Update (SP 800-90A §10.2.1.2)
@@ -243,54 +242,54 @@
* ctx->aes_ctx = Key
* ctx->counter = V
*/
-static int ctr_drbg_update_internal( mbedtls_ctr_drbg_context *ctx,
- const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN] )
+static int ctr_drbg_update_internal(mbedtls_ctr_drbg_context *ctx,
+ const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN])
{
unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
unsigned char *p = tmp;
int i, j;
int ret = 0;
- memset( tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
+ memset(tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
- for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
- {
+ for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
/*
* Increase counter
*/
- for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
- if( ++ctx->counter[i - 1] != 0 )
+ for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--) {
+ if (++ctx->counter[i - 1] != 0) {
break;
+ }
+ }
/*
* Crypt counter block
*/
- if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
- ctx->counter, p ) ) != 0 )
- {
+ if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
+ ctx->counter, p)) != 0) {
goto exit;
}
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
}
- for( i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++ )
+ for (i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++) {
tmp[i] ^= data[i];
+ }
/*
* Update key and counter
*/
- if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, tmp,
- MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
- {
+ if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, tmp,
+ MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
goto exit;
}
- memcpy( ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE,
- MBEDTLS_CTR_DRBG_BLOCKSIZE );
+ memcpy(ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE,
+ MBEDTLS_CTR_DRBG_BLOCKSIZE);
exit:
- mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
- return( ret );
+ mbedtls_platform_zeroize(tmp, sizeof(tmp));
+ return ret;
}
/* CTR_DRBG_Instantiate with derivation function (SP 800-90A §10.2.1.3.2)
@@ -305,24 +304,27 @@
* and with outputs
* ctx = initial_working_state
*/
-int mbedtls_ctr_drbg_update( mbedtls_ctr_drbg_context *ctx,
- const unsigned char *additional,
- size_t add_len )
+int mbedtls_ctr_drbg_update(mbedtls_ctr_drbg_context *ctx,
+ const unsigned char *additional,
+ size_t add_len)
{
unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- if( add_len == 0 )
- return( 0 );
+ if (add_len == 0) {
+ return 0;
+ }
- if( ( ret = block_cipher_df( add_input, additional, add_len ) ) != 0 )
+ if ((ret = block_cipher_df(add_input, additional, add_len)) != 0) {
goto exit;
- if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
+ }
+ if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
goto exit;
+ }
exit:
- mbedtls_platform_zeroize( add_input, sizeof( add_input ) );
- return( ret );
+ mbedtls_platform_zeroize(add_input, sizeof(add_input));
+ return ret;
}
/* CTR_DRBG_Reseed with derivation function (SP 800-90A §10.2.1.4.2)
@@ -338,66 +340,67 @@
* and with output
* ctx contains new_working_state
*/
-static int mbedtls_ctr_drbg_reseed_internal( mbedtls_ctr_drbg_context *ctx,
- const unsigned char *additional,
- size_t len,
- size_t nonce_len )
+static int mbedtls_ctr_drbg_reseed_internal(mbedtls_ctr_drbg_context *ctx,
+ const unsigned char *additional,
+ size_t len,
+ size_t nonce_len)
{
unsigned char seed[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT];
size_t seedlen = 0;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
- if( ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
- if( nonce_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
- if( len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len - nonce_len )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+ if (ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
+ if (nonce_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
+ if (len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len - nonce_len) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
- memset( seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT );
+ memset(seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT);
/* Gather entropy_len bytes of entropy to seed state. */
- if( 0 != ctx->f_entropy( ctx->p_entropy, seed, ctx->entropy_len ) )
- {
- return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+ if (0 != ctx->f_entropy(ctx->p_entropy, seed, ctx->entropy_len)) {
+ return MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED;
}
seedlen += ctx->entropy_len;
/* Gather entropy for a nonce if requested. */
- if( nonce_len != 0 )
- {
- if( 0 != ctx->f_entropy( ctx->p_entropy, seed + seedlen, nonce_len ) )
- {
- return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
+ if (nonce_len != 0) {
+ if (0 != ctx->f_entropy(ctx->p_entropy, seed + seedlen, nonce_len)) {
+ return MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED;
}
seedlen += nonce_len;
}
/* Add additional data if provided. */
- if( additional != NULL && len != 0 )
- {
- memcpy( seed + seedlen, additional, len );
+ if (additional != NULL && len != 0) {
+ memcpy(seed + seedlen, additional, len);
seedlen += len;
}
/* Reduce to 384 bits. */
- if( ( ret = block_cipher_df( seed, seed, seedlen ) ) != 0 )
+ if ((ret = block_cipher_df(seed, seed, seedlen)) != 0) {
goto exit;
+ }
/* Update state. */
- if( ( ret = ctr_drbg_update_internal( ctx, seed ) ) != 0 )
+ if ((ret = ctr_drbg_update_internal(ctx, seed)) != 0) {
goto exit;
+ }
ctx->reseed_counter = 1;
exit:
- mbedtls_platform_zeroize( seed, sizeof( seed ) );
- return( ret );
+ mbedtls_platform_zeroize(seed, sizeof(seed));
+ return ret;
}
-int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx,
- const unsigned char *additional, size_t len )
+int mbedtls_ctr_drbg_reseed(mbedtls_ctr_drbg_context *ctx,
+ const unsigned char *additional, size_t len)
{
- return( mbedtls_ctr_drbg_reseed_internal( ctx, additional, len, 0 ) );
+ return mbedtls_ctr_drbg_reseed_internal(ctx, additional, len, 0);
}
/* Return a "good" nonce length for CTR_DRBG. The chosen nonce length
@@ -405,12 +408,13 @@
* size and entropy length. If there is enough entropy in the initial
* call to the entropy function to serve as both the entropy input and
* the nonce, don't make a second call to get a nonce. */
-static size_t good_nonce_len( size_t entropy_len )
+static size_t good_nonce_len(size_t entropy_len)
{
- if( entropy_len >= MBEDTLS_CTR_DRBG_KEYSIZE * 3 / 2 )
- return( 0 );
- else
- return( ( entropy_len + 1 ) / 2 );
+ if (entropy_len >= MBEDTLS_CTR_DRBG_KEYSIZE * 3 / 2) {
+ return 0;
+ } else {
+ return (entropy_len + 1) / 2;
+ }
}
/* CTR_DRBG_Instantiate with derivation function (SP 800-90A §10.2.1.3.2)
@@ -424,50 +428,49 @@
* and with outputs
* ctx = initial_working_state
*/
-int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx,
- int (*f_entropy)(void *, unsigned char *, size_t),
- void *p_entropy,
- const unsigned char *custom,
- size_t len )
+int mbedtls_ctr_drbg_seed(mbedtls_ctr_drbg_context *ctx,
+ int (*f_entropy)(void *, unsigned char *, size_t),
+ void *p_entropy,
+ const unsigned char *custom,
+ size_t len)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
size_t nonce_len;
- memset( key, 0, MBEDTLS_CTR_DRBG_KEYSIZE );
+ memset(key, 0, MBEDTLS_CTR_DRBG_KEYSIZE);
/* The mutex is initialized iff f_entropy is set. */
#if defined(MBEDTLS_THREADING_C)
- mbedtls_mutex_init( &ctx->mutex );
+ mbedtls_mutex_init(&ctx->mutex);
#endif
ctx->f_entropy = f_entropy;
ctx->p_entropy = p_entropy;
- if( ctx->entropy_len == 0 )
+ if (ctx->entropy_len == 0) {
ctx->entropy_len = MBEDTLS_CTR_DRBG_ENTROPY_LEN;
+ }
/* ctx->reseed_counter contains the desired amount of entropy to
* grab for a nonce (see mbedtls_ctr_drbg_set_nonce_len()).
* If it's -1, indicating that the entropy nonce length was not set
* explicitly, use a sufficiently large nonce for security. */
- nonce_len = ( ctx->reseed_counter >= 0 ?
- (size_t) ctx->reseed_counter :
- good_nonce_len( ctx->entropy_len ) );
+ nonce_len = (ctx->reseed_counter >= 0 ?
+ (size_t) ctx->reseed_counter :
+ good_nonce_len(ctx->entropy_len));
/* Initialize with an empty key. */
- if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, key,
- MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
- {
- return( ret );
+ if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, key,
+ MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
+ return ret;
}
/* Do the initial seeding. */
- if( ( ret = mbedtls_ctr_drbg_reseed_internal( ctx, custom, len,
- nonce_len ) ) != 0 )
- {
- return( ret );
+ if ((ret = mbedtls_ctr_drbg_reseed_internal(ctx, custom, len,
+ nonce_len)) != 0) {
+ return ret;
}
- return( 0 );
+ return 0;
}
/* CTR_DRBG_Generate with derivation function (SP 800-90A §10.2.1.5.2)
@@ -489,9 +492,9 @@
* returned_bits = output[:output_len]
* ctx contains new_working_state
*/
-int mbedtls_ctr_drbg_random_with_add( void *p_rng,
- unsigned char *output, size_t output_len,
- const unsigned char *additional, size_t add_len )
+int mbedtls_ctr_drbg_random_with_add(void *p_rng,
+ unsigned char *output, size_t output_len,
+ const unsigned char *additional, size_t add_len)
{
int ret = 0;
mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
@@ -501,165 +504,169 @@
int i;
size_t use_len;
- if( output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST )
- return( MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG );
+ if (output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST) {
+ return MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG;
+ }
- if( add_len > MBEDTLS_CTR_DRBG_MAX_INPUT )
- return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
+ if (add_len > MBEDTLS_CTR_DRBG_MAX_INPUT) {
+ return MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
+ }
- memset( add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
+ memset(add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
- if( ctx->reseed_counter > ctx->reseed_interval ||
- ctx->prediction_resistance )
- {
- if( ( ret = mbedtls_ctr_drbg_reseed( ctx, additional, add_len ) ) != 0 )
- {
- return( ret );
+ if (ctx->reseed_counter > ctx->reseed_interval ||
+ ctx->prediction_resistance) {
+ if ((ret = mbedtls_ctr_drbg_reseed(ctx, additional, add_len)) != 0) {
+ return ret;
}
add_len = 0;
}
- if( add_len > 0 )
- {
- if( ( ret = block_cipher_df( add_input, additional, add_len ) ) != 0 )
+ if (add_len > 0) {
+ if ((ret = block_cipher_df(add_input, additional, add_len)) != 0) {
goto exit;
- if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
+ }
+ if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
goto exit;
+ }
}
- while( output_len > 0 )
- {
+ while (output_len > 0) {
/*
* Increase counter
*/
- for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
- if( ++ctx->counter[i - 1] != 0 )
+ for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--) {
+ if (++ctx->counter[i - 1] != 0) {
break;
+ }
+ }
/*
* Crypt counter block
*/
- if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
- ctx->counter, tmp ) ) != 0 )
- {
+ if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
+ ctx->counter, tmp)) != 0) {
goto exit;
}
- use_len = ( output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE )
+ use_len = (output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE)
? MBEDTLS_CTR_DRBG_BLOCKSIZE : output_len;
/*
* Copy random block to destination
*/
- memcpy( p, tmp, use_len );
+ memcpy(p, tmp, use_len);
p += use_len;
output_len -= use_len;
}
- if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
+ if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
goto exit;
+ }
ctx->reseed_counter++;
exit:
- mbedtls_platform_zeroize( add_input, sizeof( add_input ) );
- mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
- return( ret );
+ mbedtls_platform_zeroize(add_input, sizeof(add_input));
+ mbedtls_platform_zeroize(tmp, sizeof(tmp));
+ return ret;
}
-int mbedtls_ctr_drbg_random( void *p_rng, unsigned char *output,
- size_t output_len )
+int mbedtls_ctr_drbg_random(void *p_rng, unsigned char *output,
+ size_t output_len)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
#if defined(MBEDTLS_THREADING_C)
- if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
- return( ret );
+ if ((ret = mbedtls_mutex_lock(&ctx->mutex)) != 0) {
+ return ret;
+ }
#endif
- ret = mbedtls_ctr_drbg_random_with_add( ctx, output, output_len, NULL, 0 );
+ ret = mbedtls_ctr_drbg_random_with_add(ctx, output, output_len, NULL, 0);
#if defined(MBEDTLS_THREADING_C)
- if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
- return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
+ if (mbedtls_mutex_unlock(&ctx->mutex) != 0) {
+ return MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+ }
#endif
- return( ret );
+ return ret;
}
#if defined(MBEDTLS_FS_IO)
-int mbedtls_ctr_drbg_write_seed_file( mbedtls_ctr_drbg_context *ctx,
- const char *path )
+int mbedtls_ctr_drbg_write_seed_file(mbedtls_ctr_drbg_context *ctx,
+ const char *path)
{
int ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
FILE *f;
- unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
+ unsigned char buf[MBEDTLS_CTR_DRBG_MAX_INPUT];
- if( ( f = fopen( path, "wb" ) ) == NULL )
- return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR );
+ if ((f = fopen(path, "wb")) == NULL) {
+ return MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
+ }
/* Ensure no stdio buffering of secrets, as such buffers cannot be wiped. */
- mbedtls_setbuf( f, NULL );
+ mbedtls_setbuf(f, NULL);
- if( ( ret = mbedtls_ctr_drbg_random( ctx, buf,
- MBEDTLS_CTR_DRBG_MAX_INPUT ) ) != 0 )
+ if ((ret = mbedtls_ctr_drbg_random(ctx, buf,
+ MBEDTLS_CTR_DRBG_MAX_INPUT)) != 0) {
goto exit;
-
- if( fwrite( buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f ) !=
- MBEDTLS_CTR_DRBG_MAX_INPUT )
- {
- ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
}
- else
- {
+
+ if (fwrite(buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f) !=
+ MBEDTLS_CTR_DRBG_MAX_INPUT) {
+ ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
+ } else {
ret = 0;
}
exit:
- mbedtls_platform_zeroize( buf, sizeof( buf ) );
+ mbedtls_platform_zeroize(buf, sizeof(buf));
- fclose( f );
- return( ret );
+ fclose(f);
+ return ret;
}
-int mbedtls_ctr_drbg_update_seed_file( mbedtls_ctr_drbg_context *ctx,
- const char *path )
+int mbedtls_ctr_drbg_update_seed_file(mbedtls_ctr_drbg_context *ctx,
+ const char *path)
{
int ret = 0;
FILE *f = NULL;
size_t n;
- unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
+ unsigned char buf[MBEDTLS_CTR_DRBG_MAX_INPUT];
unsigned char c;
- if( ( f = fopen( path, "rb" ) ) == NULL )
- return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR );
+ if ((f = fopen(path, "rb")) == NULL) {
+ return MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
+ }
/* Ensure no stdio buffering of secrets, as such buffers cannot be wiped. */
- mbedtls_setbuf( f, NULL );
+ mbedtls_setbuf(f, NULL);
- n = fread( buf, 1, sizeof( buf ), f );
- if( fread( &c, 1, 1, f ) != 0 )
- {
+ n = fread(buf, 1, sizeof(buf), f);
+ if (fread(&c, 1, 1, f) != 0) {
ret = MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
goto exit;
}
- if( n == 0 || ferror( f ) )
- {
+ if (n == 0 || ferror(f)) {
ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
goto exit;
}
- fclose( f );
+ fclose(f);
f = NULL;
- ret = mbedtls_ctr_drbg_update( ctx, buf, n );
+ ret = mbedtls_ctr_drbg_update(ctx, buf, n);
exit:
- mbedtls_platform_zeroize( buf, sizeof( buf ) );
- if( f != NULL )
- fclose( f );
- if( ret != 0 )
- return( ret );
- return( mbedtls_ctr_drbg_write_seed_file( ctx, path ) );
+ mbedtls_platform_zeroize(buf, sizeof(buf));
+ if (f != NULL) {
+ fclose(f);
+ }
+ if (ret != 0) {
+ return ret;
+ }
+ return mbedtls_ctr_drbg_write_seed_file(ctx, path);
}
#endif /* MBEDTLS_FS_IO */
@@ -690,192 +697,197 @@
#if defined(MBEDTLS_CTR_DRBG_USE_128_BIT_KEY)
static const unsigned char entropy_source_pr[] =
- { 0x04, 0xd9, 0x49, 0xa6, 0xdc, 0xe8, 0x6e, 0xbb,
- 0xf1, 0x08, 0x77, 0x2b, 0x9e, 0x08, 0xca, 0x92,
- 0x65, 0x16, 0xda, 0x99, 0xa2, 0x59, 0xf3, 0xe8,
- 0x38, 0x7e, 0x3f, 0x6b, 0x51, 0x70, 0x7b, 0x20,
- 0xec, 0x53, 0xd0, 0x66, 0xc3, 0x0f, 0xe3, 0xb0,
- 0xe0, 0x86, 0xa6, 0xaa, 0x5f, 0x72, 0x2f, 0xad,
- 0xf7, 0xef, 0x06, 0xb8, 0xd6, 0x9c, 0x9d, 0xe8 };
+{ 0x04, 0xd9, 0x49, 0xa6, 0xdc, 0xe8, 0x6e, 0xbb,
+ 0xf1, 0x08, 0x77, 0x2b, 0x9e, 0x08, 0xca, 0x92,
+ 0x65, 0x16, 0xda, 0x99, 0xa2, 0x59, 0xf3, 0xe8,
+ 0x38, 0x7e, 0x3f, 0x6b, 0x51, 0x70, 0x7b, 0x20,
+ 0xec, 0x53, 0xd0, 0x66, 0xc3, 0x0f, 0xe3, 0xb0,
+ 0xe0, 0x86, 0xa6, 0xaa, 0x5f, 0x72, 0x2f, 0xad,
+ 0xf7, 0xef, 0x06, 0xb8, 0xd6, 0x9c, 0x9d, 0xe8 };
static const unsigned char entropy_source_nopr[] =
- { 0x07, 0x0d, 0x59, 0x63, 0x98, 0x73, 0xa5, 0x45,
- 0x27, 0x38, 0x22, 0x7b, 0x76, 0x85, 0xd1, 0xa9,
- 0x74, 0x18, 0x1f, 0x3c, 0x22, 0xf6, 0x49, 0x20,
- 0x4a, 0x47, 0xc2, 0xf3, 0x85, 0x16, 0xb4, 0x6f,
- 0x00, 0x2e, 0x71, 0xda, 0xed, 0x16, 0x9b, 0x5c };
+{ 0x07, 0x0d, 0x59, 0x63, 0x98, 0x73, 0xa5, 0x45,
+ 0x27, 0x38, 0x22, 0x7b, 0x76, 0x85, 0xd1, 0xa9,
+ 0x74, 0x18, 0x1f, 0x3c, 0x22, 0xf6, 0x49, 0x20,
+ 0x4a, 0x47, 0xc2, 0xf3, 0x85, 0x16, 0xb4, 0x6f,
+ 0x00, 0x2e, 0x71, 0xda, 0xed, 0x16, 0x9b, 0x5c };
static const unsigned char pers_pr[] =
- { 0xbf, 0xa4, 0x9a, 0x8f, 0x7b, 0xd8, 0xb1, 0x7a,
- 0x9d, 0xfa, 0x45, 0xed, 0x21, 0x52, 0xb3, 0xad };
+{ 0xbf, 0xa4, 0x9a, 0x8f, 0x7b, 0xd8, 0xb1, 0x7a,
+ 0x9d, 0xfa, 0x45, 0xed, 0x21, 0x52, 0xb3, 0xad };
static const unsigned char pers_nopr[] =
- { 0x4e, 0x61, 0x79, 0xd4, 0xc2, 0x72, 0xa1, 0x4c,
- 0xf1, 0x3d, 0xf6, 0x5e, 0xa3, 0xa6, 0xe5, 0x0f };
+{ 0x4e, 0x61, 0x79, 0xd4, 0xc2, 0x72, 0xa1, 0x4c,
+ 0xf1, 0x3d, 0xf6, 0x5e, 0xa3, 0xa6, 0xe5, 0x0f };
static const unsigned char result_pr[] =
- { 0xc9, 0x0a, 0xaf, 0x85, 0x89, 0x71, 0x44, 0x66,
- 0x4f, 0x25, 0x0b, 0x2b, 0xde, 0xd8, 0xfa, 0xff,
- 0x52, 0x5a, 0x1b, 0x32, 0x5e, 0x41, 0x7a, 0x10,
- 0x1f, 0xef, 0x1e, 0x62, 0x23, 0xe9, 0x20, 0x30,
- 0xc9, 0x0d, 0xad, 0x69, 0xb4, 0x9c, 0x5b, 0xf4,
- 0x87, 0x42, 0xd5, 0xae, 0x5e, 0x5e, 0x43, 0xcc,
- 0xd9, 0xfd, 0x0b, 0x93, 0x4a, 0xe3, 0xd4, 0x06,
- 0x37, 0x36, 0x0f, 0x3f, 0x72, 0x82, 0x0c, 0xcf };
+{ 0xc9, 0x0a, 0xaf, 0x85, 0x89, 0x71, 0x44, 0x66,
+ 0x4f, 0x25, 0x0b, 0x2b, 0xde, 0xd8, 0xfa, 0xff,
+ 0x52, 0x5a, 0x1b, 0x32, 0x5e, 0x41, 0x7a, 0x10,
+ 0x1f, 0xef, 0x1e, 0x62, 0x23, 0xe9, 0x20, 0x30,
+ 0xc9, 0x0d, 0xad, 0x69, 0xb4, 0x9c, 0x5b, 0xf4,
+ 0x87, 0x42, 0xd5, 0xae, 0x5e, 0x5e, 0x43, 0xcc,
+ 0xd9, 0xfd, 0x0b, 0x93, 0x4a, 0xe3, 0xd4, 0x06,
+ 0x37, 0x36, 0x0f, 0x3f, 0x72, 0x82, 0x0c, 0xcf };
static const unsigned char result_nopr[] =
- { 0x31, 0xc9, 0x91, 0x09, 0xf8, 0xc5, 0x10, 0x13,
- 0x3c, 0xd3, 0x96, 0xf9, 0xbc, 0x2c, 0x12, 0xc0,
- 0x7c, 0xc1, 0x61, 0x5f, 0xa3, 0x09, 0x99, 0xaf,
- 0xd7, 0xf2, 0x36, 0xfd, 0x40, 0x1a, 0x8b, 0xf2,
- 0x33, 0x38, 0xee, 0x1d, 0x03, 0x5f, 0x83, 0xb7,
- 0xa2, 0x53, 0xdc, 0xee, 0x18, 0xfc, 0xa7, 0xf2,
- 0xee, 0x96, 0xc6, 0xc2, 0xcd, 0x0c, 0xff, 0x02,
- 0x76, 0x70, 0x69, 0xaa, 0x69, 0xd1, 0x3b, 0xe8 };
+{ 0x31, 0xc9, 0x91, 0x09, 0xf8, 0xc5, 0x10, 0x13,
+ 0x3c, 0xd3, 0x96, 0xf9, 0xbc, 0x2c, 0x12, 0xc0,
+ 0x7c, 0xc1, 0x61, 0x5f, 0xa3, 0x09, 0x99, 0xaf,
+ 0xd7, 0xf2, 0x36, 0xfd, 0x40, 0x1a, 0x8b, 0xf2,
+ 0x33, 0x38, 0xee, 0x1d, 0x03, 0x5f, 0x83, 0xb7,
+ 0xa2, 0x53, 0xdc, 0xee, 0x18, 0xfc, 0xa7, 0xf2,
+ 0xee, 0x96, 0xc6, 0xc2, 0xcd, 0x0c, 0xff, 0x02,
+ 0x76, 0x70, 0x69, 0xaa, 0x69, 0xd1, 0x3b, 0xe8 };
#else /* MBEDTLS_CTR_DRBG_USE_128_BIT_KEY */
static const unsigned char entropy_source_pr[] =
- { 0xca, 0x58, 0xfd, 0xf2, 0xb9, 0x77, 0xcb, 0x49,
- 0xd4, 0xe0, 0x5b, 0xe2, 0x39, 0x50, 0xd9, 0x8a,
- 0x6a, 0xb3, 0xc5, 0x2f, 0xdf, 0x74, 0xd5, 0x85,
- 0x8f, 0xd1, 0xba, 0x64, 0x54, 0x7b, 0xdb, 0x1e,
- 0xc5, 0xea, 0x24, 0xc0, 0xfa, 0x0c, 0x90, 0x15,
- 0x09, 0x20, 0x92, 0x42, 0x32, 0x36, 0x45, 0x45,
- 0x7d, 0x20, 0x76, 0x6b, 0xcf, 0xa2, 0x15, 0xc8,
- 0x2f, 0x9f, 0xbc, 0x88, 0x3f, 0x80, 0xd1, 0x2c,
- 0xb7, 0x16, 0xd1, 0x80, 0x9e, 0xe1, 0xc9, 0xb3,
- 0x88, 0x1b, 0x21, 0x45, 0xef, 0xa1, 0x7f, 0xce,
- 0xc8, 0x92, 0x35, 0x55, 0x2a, 0xd9, 0x1d, 0x8e,
- 0x12, 0x38, 0xac, 0x01, 0x4e, 0x38, 0x18, 0x76,
- 0x9c, 0xf2, 0xb6, 0xd4, 0x13, 0xb6, 0x2c, 0x77,
- 0xc0, 0xe7, 0xe6, 0x0c, 0x47, 0x44, 0x95, 0xbe };
+{ 0xca, 0x58, 0xfd, 0xf2, 0xb9, 0x77, 0xcb, 0x49,
+ 0xd4, 0xe0, 0x5b, 0xe2, 0x39, 0x50, 0xd9, 0x8a,
+ 0x6a, 0xb3, 0xc5, 0x2f, 0xdf, 0x74, 0xd5, 0x85,
+ 0x8f, 0xd1, 0xba, 0x64, 0x54, 0x7b, 0xdb, 0x1e,
+ 0xc5, 0xea, 0x24, 0xc0, 0xfa, 0x0c, 0x90, 0x15,
+ 0x09, 0x20, 0x92, 0x42, 0x32, 0x36, 0x45, 0x45,
+ 0x7d, 0x20, 0x76, 0x6b, 0xcf, 0xa2, 0x15, 0xc8,
+ 0x2f, 0x9f, 0xbc, 0x88, 0x3f, 0x80, 0xd1, 0x2c,
+ 0xb7, 0x16, 0xd1, 0x80, 0x9e, 0xe1, 0xc9, 0xb3,
+ 0x88, 0x1b, 0x21, 0x45, 0xef, 0xa1, 0x7f, 0xce,
+ 0xc8, 0x92, 0x35, 0x55, 0x2a, 0xd9, 0x1d, 0x8e,
+ 0x12, 0x38, 0xac, 0x01, 0x4e, 0x38, 0x18, 0x76,
+ 0x9c, 0xf2, 0xb6, 0xd4, 0x13, 0xb6, 0x2c, 0x77,
+ 0xc0, 0xe7, 0xe6, 0x0c, 0x47, 0x44, 0x95, 0xbe };
static const unsigned char entropy_source_nopr[] =
- { 0x4c, 0xfb, 0x21, 0x86, 0x73, 0x34, 0x6d, 0x9d,
- 0x50, 0xc9, 0x22, 0xe4, 0x9b, 0x0d, 0xfc, 0xd0,
- 0x90, 0xad, 0xf0, 0x4f, 0x5c, 0x3b, 0xa4, 0x73,
- 0x27, 0xdf, 0xcd, 0x6f, 0xa6, 0x3a, 0x78, 0x5c,
- 0x01, 0x69, 0x62, 0xa7, 0xfd, 0x27, 0x87, 0xa2,
- 0x4b, 0xf6, 0xbe, 0x47, 0xef, 0x37, 0x83, 0xf1,
- 0xb7, 0xec, 0x46, 0x07, 0x23, 0x63, 0x83, 0x4a,
- 0x1b, 0x01, 0x33, 0xf2, 0xc2, 0x38, 0x91, 0xdb,
- 0x4f, 0x11, 0xa6, 0x86, 0x51, 0xf2, 0x3e, 0x3a,
- 0x8b, 0x1f, 0xdc, 0x03, 0xb1, 0x92, 0xc7, 0xe7 };
+{ 0x4c, 0xfb, 0x21, 0x86, 0x73, 0x34, 0x6d, 0x9d,
+ 0x50, 0xc9, 0x22, 0xe4, 0x9b, 0x0d, 0xfc, 0xd0,
+ 0x90, 0xad, 0xf0, 0x4f, 0x5c, 0x3b, 0xa4, 0x73,
+ 0x27, 0xdf, 0xcd, 0x6f, 0xa6, 0x3a, 0x78, 0x5c,
+ 0x01, 0x69, 0x62, 0xa7, 0xfd, 0x27, 0x87, 0xa2,
+ 0x4b, 0xf6, 0xbe, 0x47, 0xef, 0x37, 0x83, 0xf1,
+ 0xb7, 0xec, 0x46, 0x07, 0x23, 0x63, 0x83, 0x4a,
+ 0x1b, 0x01, 0x33, 0xf2, 0xc2, 0x38, 0x91, 0xdb,
+ 0x4f, 0x11, 0xa6, 0x86, 0x51, 0xf2, 0x3e, 0x3a,
+ 0x8b, 0x1f, 0xdc, 0x03, 0xb1, 0x92, 0xc7, 0xe7 };
static const unsigned char pers_pr[] =
- { 0x5a, 0x70, 0x95, 0xe9, 0x81, 0x40, 0x52, 0x33,
- 0x91, 0x53, 0x7e, 0x75, 0xd6, 0x19, 0x9d, 0x1e,
- 0xad, 0x0d, 0xc6, 0xa7, 0xde, 0x6c, 0x1f, 0xe0,
- 0xea, 0x18, 0x33, 0xa8, 0x7e, 0x06, 0x20, 0xe9 };
+{ 0x5a, 0x70, 0x95, 0xe9, 0x81, 0x40, 0x52, 0x33,
+ 0x91, 0x53, 0x7e, 0x75, 0xd6, 0x19, 0x9d, 0x1e,
+ 0xad, 0x0d, 0xc6, 0xa7, 0xde, 0x6c, 0x1f, 0xe0,
+ 0xea, 0x18, 0x33, 0xa8, 0x7e, 0x06, 0x20, 0xe9 };
static const unsigned char pers_nopr[] =
- { 0x88, 0xee, 0xb8, 0xe0, 0xe8, 0x3b, 0xf3, 0x29,
- 0x4b, 0xda, 0xcd, 0x60, 0x99, 0xeb, 0xe4, 0xbf,
- 0x55, 0xec, 0xd9, 0x11, 0x3f, 0x71, 0xe5, 0xeb,
- 0xcb, 0x45, 0x75, 0xf3, 0xd6, 0xa6, 0x8a, 0x6b };
+{ 0x88, 0xee, 0xb8, 0xe0, 0xe8, 0x3b, 0xf3, 0x29,
+ 0x4b, 0xda, 0xcd, 0x60, 0x99, 0xeb, 0xe4, 0xbf,
+ 0x55, 0xec, 0xd9, 0x11, 0x3f, 0x71, 0xe5, 0xeb,
+ 0xcb, 0x45, 0x75, 0xf3, 0xd6, 0xa6, 0x8a, 0x6b };
static const unsigned char result_pr[] =
- { 0xce, 0x2f, 0xdb, 0xb6, 0xd9, 0xb7, 0x39, 0x85,
- 0x04, 0xc5, 0xc0, 0x42, 0xc2, 0x31, 0xc6, 0x1d,
- 0x9b, 0x5a, 0x59, 0xf8, 0x7e, 0x0d, 0xcc, 0x62,
- 0x7b, 0x65, 0x11, 0x55, 0x10, 0xeb, 0x9e, 0x3d,
- 0xa4, 0xfb, 0x1c, 0x6a, 0x18, 0xc0, 0x74, 0xdb,
- 0xdd, 0xe7, 0x02, 0x23, 0x63, 0x21, 0xd0, 0x39,
- 0xf9, 0xa7, 0xc4, 0x52, 0x84, 0x3b, 0x49, 0x40,
- 0x72, 0x2b, 0xb0, 0x6c, 0x9c, 0xdb, 0xc3, 0x43 };
+{ 0xce, 0x2f, 0xdb, 0xb6, 0xd9, 0xb7, 0x39, 0x85,
+ 0x04, 0xc5, 0xc0, 0x42, 0xc2, 0x31, 0xc6, 0x1d,
+ 0x9b, 0x5a, 0x59, 0xf8, 0x7e, 0x0d, 0xcc, 0x62,
+ 0x7b, 0x65, 0x11, 0x55, 0x10, 0xeb, 0x9e, 0x3d,
+ 0xa4, 0xfb, 0x1c, 0x6a, 0x18, 0xc0, 0x74, 0xdb,
+ 0xdd, 0xe7, 0x02, 0x23, 0x63, 0x21, 0xd0, 0x39,
+ 0xf9, 0xa7, 0xc4, 0x52, 0x84, 0x3b, 0x49, 0x40,
+ 0x72, 0x2b, 0xb0, 0x6c, 0x9c, 0xdb, 0xc3, 0x43 };
static const unsigned char result_nopr[] =
- { 0xa5, 0x51, 0x80, 0xa1, 0x90, 0xbe, 0xf3, 0xad,
- 0xaf, 0x28, 0xf6, 0xb7, 0x95, 0xe9, 0xf1, 0xf3,
- 0xd6, 0xdf, 0xa1, 0xb2, 0x7d, 0xd0, 0x46, 0x7b,
- 0x0c, 0x75, 0xf5, 0xfa, 0x93, 0x1e, 0x97, 0x14,
- 0x75, 0xb2, 0x7c, 0xae, 0x03, 0xa2, 0x96, 0x54,
- 0xe2, 0xf4, 0x09, 0x66, 0xea, 0x33, 0x64, 0x30,
- 0x40, 0xd1, 0x40, 0x0f, 0xe6, 0x77, 0x87, 0x3a,
- 0xf8, 0x09, 0x7c, 0x1f, 0xe9, 0xf0, 0x02, 0x98 };
+{ 0xa5, 0x51, 0x80, 0xa1, 0x90, 0xbe, 0xf3, 0xad,
+ 0xaf, 0x28, 0xf6, 0xb7, 0x95, 0xe9, 0xf1, 0xf3,
+ 0xd6, 0xdf, 0xa1, 0xb2, 0x7d, 0xd0, 0x46, 0x7b,
+ 0x0c, 0x75, 0xf5, 0xfa, 0x93, 0x1e, 0x97, 0x14,
+ 0x75, 0xb2, 0x7c, 0xae, 0x03, 0xa2, 0x96, 0x54,
+ 0xe2, 0xf4, 0x09, 0x66, 0xea, 0x33, 0x64, 0x30,
+ 0x40, 0xd1, 0x40, 0x0f, 0xe6, 0x77, 0x87, 0x3a,
+ 0xf8, 0x09, 0x7c, 0x1f, 0xe9, 0xf0, 0x02, 0x98 };
#endif /* MBEDTLS_CTR_DRBG_USE_128_BIT_KEY */
static size_t test_offset;
-static int ctr_drbg_self_test_entropy( void *data, unsigned char *buf,
- size_t len )
+static int ctr_drbg_self_test_entropy(void *data, unsigned char *buf,
+ size_t len)
{
const unsigned char *p = data;
- memcpy( buf, p + test_offset, len );
+ memcpy(buf, p + test_offset, len);
test_offset += len;
- return( 0 );
+ return 0;
}
-#define CHK( c ) if( (c) != 0 ) \
- { \
- if( verbose != 0 ) \
- mbedtls_printf( "failed\n" ); \
- return( 1 ); \
- }
+#define CHK(c) if ((c) != 0) \
+ { \
+ if (verbose != 0) \
+ mbedtls_printf("failed\n"); \
+ return 1; \
+ }
#define SELF_TEST_OUTPUT_DISCARD_LENGTH 64
/*
* Checkup routine
*/
-int mbedtls_ctr_drbg_self_test( int verbose )
+int mbedtls_ctr_drbg_self_test(int verbose)
{
mbedtls_ctr_drbg_context ctx;
- unsigned char buf[ sizeof( result_pr ) ];
+ unsigned char buf[sizeof(result_pr)];
- mbedtls_ctr_drbg_init( &ctx );
+ mbedtls_ctr_drbg_init(&ctx);
/*
* Based on a NIST CTR_DRBG test vector (PR = True)
*/
- if( verbose != 0 )
- mbedtls_printf( " CTR_DRBG (PR = TRUE) : " );
+ if (verbose != 0) {
+ mbedtls_printf(" CTR_DRBG (PR = TRUE) : ");
+ }
test_offset = 0;
- mbedtls_ctr_drbg_set_entropy_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE );
- mbedtls_ctr_drbg_set_nonce_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2 );
- CHK( mbedtls_ctr_drbg_seed( &ctx,
- ctr_drbg_self_test_entropy,
- (void *) entropy_source_pr,
- pers_pr, MBEDTLS_CTR_DRBG_KEYSIZE ) );
- mbedtls_ctr_drbg_set_prediction_resistance( &ctx, MBEDTLS_CTR_DRBG_PR_ON );
- CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH ) );
- CHK( mbedtls_ctr_drbg_random( &ctx, buf, sizeof( result_pr ) ) );
- CHK( memcmp( buf, result_pr, sizeof( result_pr ) ) );
+ mbedtls_ctr_drbg_set_entropy_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE);
+ mbedtls_ctr_drbg_set_nonce_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2);
+ CHK(mbedtls_ctr_drbg_seed(&ctx,
+ ctr_drbg_self_test_entropy,
+ (void *) entropy_source_pr,
+ pers_pr, MBEDTLS_CTR_DRBG_KEYSIZE));
+ mbedtls_ctr_drbg_set_prediction_resistance(&ctx, MBEDTLS_CTR_DRBG_PR_ON);
+ CHK(mbedtls_ctr_drbg_random(&ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH));
+ CHK(mbedtls_ctr_drbg_random(&ctx, buf, sizeof(result_pr)));
+ CHK(memcmp(buf, result_pr, sizeof(result_pr)));
- mbedtls_ctr_drbg_free( &ctx );
+ mbedtls_ctr_drbg_free(&ctx);
- if( verbose != 0 )
- mbedtls_printf( "passed\n" );
+ if (verbose != 0) {
+ mbedtls_printf("passed\n");
+ }
/*
* Based on a NIST CTR_DRBG test vector (PR = FALSE)
*/
- if( verbose != 0 )
- mbedtls_printf( " CTR_DRBG (PR = FALSE): " );
+ if (verbose != 0) {
+ mbedtls_printf(" CTR_DRBG (PR = FALSE): ");
+ }
- mbedtls_ctr_drbg_init( &ctx );
+ mbedtls_ctr_drbg_init(&ctx);
test_offset = 0;
- mbedtls_ctr_drbg_set_entropy_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE);
- mbedtls_ctr_drbg_set_nonce_len( &ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2 );
- CHK( mbedtls_ctr_drbg_seed( &ctx,
- ctr_drbg_self_test_entropy,
- (void *) entropy_source_nopr,
- pers_nopr, MBEDTLS_CTR_DRBG_KEYSIZE ) );
- CHK( mbedtls_ctr_drbg_reseed( &ctx, NULL, 0 ) );
- CHK( mbedtls_ctr_drbg_random( &ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH ) );
- CHK( mbedtls_ctr_drbg_random( &ctx, buf, sizeof( result_nopr ) ) );
- CHK( memcmp( buf, result_nopr, sizeof( result_nopr ) ) );
+ mbedtls_ctr_drbg_set_entropy_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE);
+ mbedtls_ctr_drbg_set_nonce_len(&ctx, MBEDTLS_CTR_DRBG_KEYSIZE / 2);
+ CHK(mbedtls_ctr_drbg_seed(&ctx,
+ ctr_drbg_self_test_entropy,
+ (void *) entropy_source_nopr,
+ pers_nopr, MBEDTLS_CTR_DRBG_KEYSIZE));
+ CHK(mbedtls_ctr_drbg_reseed(&ctx, NULL, 0));
+ CHK(mbedtls_ctr_drbg_random(&ctx, buf, SELF_TEST_OUTPUT_DISCARD_LENGTH));
+ CHK(mbedtls_ctr_drbg_random(&ctx, buf, sizeof(result_nopr)));
+ CHK(memcmp(buf, result_nopr, sizeof(result_nopr)));
- mbedtls_ctr_drbg_free( &ctx );
+ mbedtls_ctr_drbg_free(&ctx);
- if( verbose != 0 )
- mbedtls_printf( "passed\n" );
+ if (verbose != 0) {
+ mbedtls_printf("passed\n");
+ }
- if( verbose != 0 )
- mbedtls_printf( "\n" );
+ if (verbose != 0) {
+ mbedtls_printf("\n");
+ }
- return( 0 );
+ return 0;
}
#endif /* MBEDTLS_SELF_TEST */