mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-08-20 21:33:47 -07:00
make style
This commit is contained in:
Philippe Teuwen
parent
0d9223a547
commit
0373696662
483 changed files with 56514 additions and 52451 deletions
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@ -55,12 +55,12 @@
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/*
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* CTR_DRBG context initialization
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*/
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void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx )
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void mbedtls_ctr_drbg_init(mbedtls_ctr_drbg_context *ctx)
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{
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memset( ctx, 0, sizeof( mbedtls_ctr_drbg_context ) );
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memset(ctx, 0, sizeof(mbedtls_ctr_drbg_context));
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#if defined(MBEDTLS_THREADING_C)
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mbedtls_mutex_init( &ctx->mutex );
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mbedtls_mutex_init(&ctx->mutex);
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#endif
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}
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@ -69,19 +69,19 @@ void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx )
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* NIST tests to succeed (which require known length fixed entropy)
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*/
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int mbedtls_ctr_drbg_seed_entropy_len(
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mbedtls_ctr_drbg_context *ctx,
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int (*f_entropy)(void *, unsigned char *, size_t),
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void *p_entropy,
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const unsigned char *custom,
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size_t len,
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size_t entropy_len )
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mbedtls_ctr_drbg_context *ctx,
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int (*f_entropy)(void *, unsigned char *, size_t),
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void *p_entropy,
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const unsigned char *custom,
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size_t len,
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size_t entropy_len)
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{
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int ret;
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unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
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memset( key, 0, MBEDTLS_CTR_DRBG_KEYSIZE );
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memset(key, 0, MBEDTLS_CTR_DRBG_KEYSIZE);
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mbedtls_aes_init( &ctx->aes_ctx );
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mbedtls_aes_init(&ctx->aes_ctx);
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ctx->f_entropy = f_entropy;
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ctx->p_entropy = p_entropy;
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@ -92,57 +92,55 @@ int mbedtls_ctr_drbg_seed_entropy_len(
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/*
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* Initialize with an empty key
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*/
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if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, key, MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
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{
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return( ret );
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if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, key, MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
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return (ret);
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}
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if( ( ret = mbedtls_ctr_drbg_reseed( ctx, custom, len ) ) != 0 )
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{
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return( ret );
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if ((ret = mbedtls_ctr_drbg_reseed(ctx, custom, len)) != 0) {
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return (ret);
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}
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return( 0 );
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return (0);
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}
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int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx,
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int (*f_entropy)(void *, unsigned char *, size_t),
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void *p_entropy,
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const unsigned char *custom,
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size_t len )
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int mbedtls_ctr_drbg_seed(mbedtls_ctr_drbg_context *ctx,
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int (*f_entropy)(void *, unsigned char *, size_t),
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void *p_entropy,
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const unsigned char *custom,
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size_t len)
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{
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return( mbedtls_ctr_drbg_seed_entropy_len( ctx, f_entropy, p_entropy, custom, len,
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MBEDTLS_CTR_DRBG_ENTROPY_LEN ) );
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return (mbedtls_ctr_drbg_seed_entropy_len(ctx, f_entropy, p_entropy, custom, len,
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MBEDTLS_CTR_DRBG_ENTROPY_LEN));
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}
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void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx )
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void mbedtls_ctr_drbg_free(mbedtls_ctr_drbg_context *ctx)
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{
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if( ctx == NULL )
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if (ctx == NULL)
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return;
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#if defined(MBEDTLS_THREADING_C)
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mbedtls_mutex_free( &ctx->mutex );
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mbedtls_mutex_free(&ctx->mutex);
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#endif
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mbedtls_aes_free( &ctx->aes_ctx );
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mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ctr_drbg_context ) );
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mbedtls_aes_free(&ctx->aes_ctx);
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mbedtls_platform_zeroize(ctx, sizeof(mbedtls_ctr_drbg_context));
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}
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void mbedtls_ctr_drbg_set_prediction_resistance( mbedtls_ctr_drbg_context *ctx, int resistance )
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void mbedtls_ctr_drbg_set_prediction_resistance(mbedtls_ctr_drbg_context *ctx, int resistance)
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{
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ctx->prediction_resistance = resistance;
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}
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void mbedtls_ctr_drbg_set_entropy_len( mbedtls_ctr_drbg_context *ctx, size_t len )
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void mbedtls_ctr_drbg_set_entropy_len(mbedtls_ctr_drbg_context *ctx, size_t len)
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{
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ctx->entropy_len = len;
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}
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void mbedtls_ctr_drbg_set_reseed_interval( mbedtls_ctr_drbg_context *ctx, int interval )
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void mbedtls_ctr_drbg_set_reseed_interval(mbedtls_ctr_drbg_context *ctx, int interval)
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{
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ctx->reseed_interval = interval;
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}
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static int block_cipher_df( unsigned char *output,
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const unsigned char *data, size_t data_len )
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static int block_cipher_df(unsigned char *output,
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const unsigned char *data, size_t data_len)
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{
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unsigned char buf[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + MBEDTLS_CTR_DRBG_BLOCKSIZE + 16];
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unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
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@ -155,11 +153,11 @@ static int block_cipher_df( unsigned char *output,
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int i, j;
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size_t buf_len, use_len;
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if( data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
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return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
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if (data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT)
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return (MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG);
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memset( buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + MBEDTLS_CTR_DRBG_BLOCKSIZE + 16 );
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mbedtls_aes_init( &aes_ctx );
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memset(buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT + MBEDTLS_CTR_DRBG_BLOCKSIZE + 16);
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mbedtls_aes_init(&aes_ctx);
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/*
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* Construct IV (16 bytes) and S in buffer
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@ -169,49 +167,45 @@ static int block_cipher_df( unsigned char *output,
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* (Total is padded to a multiple of 16-bytes with zeroes)
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*/
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p = buf + MBEDTLS_CTR_DRBG_BLOCKSIZE;
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*p++ = ( data_len >> 24 ) & 0xff;
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*p++ = ( data_len >> 16 ) & 0xff;
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*p++ = ( data_len >> 8 ) & 0xff;
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*p++ = ( data_len ) & 0xff;
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*p++ = (data_len >> 24) & 0xff;
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*p++ = (data_len >> 16) & 0xff;
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*p++ = (data_len >> 8) & 0xff;
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*p++ = (data_len) & 0xff;
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p += 3;
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*p++ = MBEDTLS_CTR_DRBG_SEEDLEN;
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memcpy( p, data, data_len );
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memcpy(p, data, data_len);
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p[data_len] = 0x80;
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buf_len = MBEDTLS_CTR_DRBG_BLOCKSIZE + 8 + data_len + 1;
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for( i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++ )
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for (i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++)
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key[i] = i;
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if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, key, MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
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{
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if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, key, MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
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goto exit;
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}
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/*
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* Reduce data to MBEDTLS_CTR_DRBG_SEEDLEN bytes of data
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*/
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for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
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{
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for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
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p = buf;
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memset( chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE );
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memset(chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE);
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use_len = buf_len;
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while( use_len > 0 )
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{
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for( i = 0; i < MBEDTLS_CTR_DRBG_BLOCKSIZE; i++ )
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while (use_len > 0) {
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for (i = 0; i < MBEDTLS_CTR_DRBG_BLOCKSIZE; i++)
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chain[i] ^= p[i];
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p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
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use_len -= ( use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE ) ?
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use_len -= (use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE) ?
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MBEDTLS_CTR_DRBG_BLOCKSIZE : use_len;
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if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT, chain, chain ) ) != 0 )
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{
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if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT, chain, chain)) != 0) {
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goto exit;
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}
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}
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memcpy( tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE );
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memcpy(tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE);
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/*
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* Update IV
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@ -222,124 +216,115 @@ static int block_cipher_df( unsigned char *output,
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/*
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* Do final encryption with reduced data
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*/
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if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, tmp, MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
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{
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if ((ret = mbedtls_aes_setkey_enc(&aes_ctx, tmp, MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
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goto exit;
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}
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iv = tmp + MBEDTLS_CTR_DRBG_KEYSIZE;
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p = output;
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for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
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{
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if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT, iv, iv ) ) != 0 )
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{
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for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
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if ((ret = mbedtls_aes_crypt_ecb(&aes_ctx, MBEDTLS_AES_ENCRYPT, iv, iv)) != 0) {
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goto exit;
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}
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memcpy( p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE );
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memcpy(p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE);
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p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
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}
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exit:
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mbedtls_aes_free( &aes_ctx );
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mbedtls_aes_free(&aes_ctx);
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/*
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* tidy up the stack
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*/
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mbedtls_platform_zeroize( buf, sizeof( buf ) );
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mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
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mbedtls_platform_zeroize( key, sizeof( key ) );
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mbedtls_platform_zeroize( chain, sizeof( chain ) );
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if( 0 != ret )
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{
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mbedtls_platform_zeroize(buf, sizeof(buf));
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mbedtls_platform_zeroize(tmp, sizeof(tmp));
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mbedtls_platform_zeroize(key, sizeof(key));
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mbedtls_platform_zeroize(chain, sizeof(chain));
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if (0 != ret) {
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/*
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* wipe partial seed from memory
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*/
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mbedtls_platform_zeroize( output, MBEDTLS_CTR_DRBG_SEEDLEN );
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mbedtls_platform_zeroize(output, MBEDTLS_CTR_DRBG_SEEDLEN);
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}
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return( ret );
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return (ret);
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}
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static int ctr_drbg_update_internal( mbedtls_ctr_drbg_context *ctx,
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const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN] )
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static int ctr_drbg_update_internal(mbedtls_ctr_drbg_context *ctx,
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const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN])
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{
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unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
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unsigned char *p = tmp;
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int i, j;
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int ret = 0;
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memset( tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
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memset(tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN);
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for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
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{
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for (j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE) {
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/*
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* Increase counter
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*/
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for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
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if( ++ctx->counter[i - 1] != 0 )
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for (i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i--)
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if (++ctx->counter[i - 1] != 0)
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break;
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|
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/*
|
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* Crypt counter block
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*/
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if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT, ctx->counter, p ) ) != 0 )
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{
|
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return( ret );
|
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if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT, ctx->counter, p)) != 0) {
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return (ret);
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}
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p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
|
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}
|
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|
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for( i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++ )
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for (i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++)
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tmp[i] ^= data[i];
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|
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/*
|
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* Update key and counter
|
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*/
|
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if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, tmp, MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
|
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{
|
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return( ret );
|
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if ((ret = mbedtls_aes_setkey_enc(&ctx->aes_ctx, tmp, MBEDTLS_CTR_DRBG_KEYBITS)) != 0) {
|
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return (ret);
|
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}
|
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memcpy( ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE, MBEDTLS_CTR_DRBG_BLOCKSIZE );
|
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memcpy(ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE, MBEDTLS_CTR_DRBG_BLOCKSIZE);
|
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|
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return( 0 );
|
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return (0);
|
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}
|
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|
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void mbedtls_ctr_drbg_update( mbedtls_ctr_drbg_context *ctx,
|
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const unsigned char *additional, size_t add_len )
|
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void mbedtls_ctr_drbg_update(mbedtls_ctr_drbg_context *ctx,
|
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const unsigned char *additional, size_t add_len)
|
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{
|
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unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
|
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|
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if( add_len > 0 )
|
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{
|
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if (add_len > 0) {
|
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/* MAX_INPUT would be more logical here, but we have to match
|
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* block_cipher_df()'s limits since we can't propagate errors */
|
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if( add_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
|
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if (add_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT)
|
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add_len = MBEDTLS_CTR_DRBG_MAX_SEED_INPUT;
|
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|
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block_cipher_df( add_input, additional, add_len );
|
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ctr_drbg_update_internal( ctx, add_input );
|
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block_cipher_df(add_input, additional, add_len);
|
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ctr_drbg_update_internal(ctx, add_input);
|
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}
|
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}
|
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|
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int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx,
|
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const unsigned char *additional, size_t len )
|
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int mbedtls_ctr_drbg_reseed(mbedtls_ctr_drbg_context *ctx,
|
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const unsigned char *additional, size_t len)
|
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{
|
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unsigned char seed[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT];
|
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size_t seedlen = 0;
|
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int ret;
|
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|
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if( ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ||
|
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len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len )
|
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return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
|
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if (ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT ||
|
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len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len)
|
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return (MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG);
|
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|
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memset( seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT );
|
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memset(seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT);
|
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|
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/*
|
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* Gather entropy_len bytes of entropy to seed state
|
||||
*/
|
||||
if( 0 != ctx->f_entropy( ctx->p_entropy, seed,
|
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ctx->entropy_len ) )
|
||||
{
|
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return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
|
||||
if (0 != ctx->f_entropy(ctx->p_entropy, seed,
|
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ctx->entropy_len)) {
|
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return (MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED);
|
||||
}
|
||||
|
||||
seedlen += ctx->entropy_len;
|
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|
|
@ -347,35 +332,32 @@ int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx,
|
|||
/*
|
||||
* Add additional data
|
||||
*/
|
||||
if( additional && len )
|
||||
{
|
||||
memcpy( seed + seedlen, additional, len );
|
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if (additional && len) {
|
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memcpy(seed + seedlen, additional, len);
|
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seedlen += len;
|
||||
}
|
||||
|
||||
/*
|
||||
* Reduce to 384 bits
|
||||
*/
|
||||
if( ( ret = block_cipher_df( seed, seed, seedlen ) ) != 0 )
|
||||
{
|
||||
return( ret );
|
||||
if ((ret = block_cipher_df(seed, seed, seedlen)) != 0) {
|
||||
return (ret);
|
||||
}
|
||||
|
||||
/*
|
||||
* Update state
|
||||
*/
|
||||
if( ( ret = ctr_drbg_update_internal( ctx, seed ) ) != 0 )
|
||||
{
|
||||
return( ret );
|
||||
if ((ret = ctr_drbg_update_internal(ctx, seed)) != 0) {
|
||||
return (ret);
|
||||
}
|
||||
ctx->reseed_counter = 1;
|
||||
|
||||
return( 0 );
|
||||
return (0);
|
||||
}
|
||||
|
||||
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;
|
||||
|
|
@ -385,267 +367,264 @@ int mbedtls_ctr_drbg_random_with_add( void *p_rng,
|
|||
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 )
|
||||
{
|
||||
return( ret );
|
||||
if (add_len > 0) {
|
||||
if ((ret = block_cipher_df(add_input, additional, add_len)) != 0) {
|
||||
return (ret);
|
||||
}
|
||||
if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
|
||||
{
|
||||
return( ret );
|
||||
if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
|
||||
return (ret);
|
||||
}
|
||||
}
|
||||
|
||||
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 )
|
||||
{
|
||||
return( ret );
|
||||
if ((ret = mbedtls_aes_crypt_ecb(&ctx->aes_ctx, MBEDTLS_AES_ENCRYPT, ctx->counter, tmp)) != 0) {
|
||||
return (ret);
|
||||
}
|
||||
|
||||
use_len = ( output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE ) ? MBEDTLS_CTR_DRBG_BLOCKSIZE :
|
||||
output_len;
|
||||
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 )
|
||||
{
|
||||
return( ret );
|
||||
if ((ret = ctr_drbg_update_internal(ctx, add_input)) != 0) {
|
||||
return (ret);
|
||||
}
|
||||
|
||||
ctx->reseed_counter++;
|
||||
|
||||
return( 0 );
|
||||
return (0);
|
||||
}
|
||||
|
||||
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_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 ];
|
||||
|
||||
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);
|
||||
|
||||
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 )
|
||||
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;
|
||||
size_t n;
|
||||
unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
|
||||
|
||||
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);
|
||||
|
||||
fseek( f, 0, SEEK_END );
|
||||
n = (size_t) ftell( f );
|
||||
fseek( f, 0, SEEK_SET );
|
||||
fseek(f, 0, SEEK_END);
|
||||
n = (size_t) ftell(f);
|
||||
fseek(f, 0, SEEK_SET);
|
||||
|
||||
if( n > MBEDTLS_CTR_DRBG_MAX_INPUT )
|
||||
{
|
||||
fclose( f );
|
||||
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
|
||||
if (n > MBEDTLS_CTR_DRBG_MAX_INPUT) {
|
||||
fclose(f);
|
||||
return (MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG);
|
||||
}
|
||||
|
||||
if( fread( buf, 1, n, f ) != n )
|
||||
if (fread(buf, 1, n, f) != n)
|
||||
ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
|
||||
else
|
||||
mbedtls_ctr_drbg_update( ctx, buf, n );
|
||||
mbedtls_ctr_drbg_update(ctx, buf, n);
|
||||
|
||||
fclose( f );
|
||||
fclose(f);
|
||||
|
||||
mbedtls_platform_zeroize( buf, sizeof( buf ) );
|
||||
mbedtls_platform_zeroize(buf, sizeof(buf));
|
||||
|
||||
if( ret != 0 )
|
||||
return( ret );
|
||||
if (ret != 0)
|
||||
return (ret);
|
||||
|
||||
return( mbedtls_ctr_drbg_write_seed_file( ctx, path ) );
|
||||
return (mbedtls_ctr_drbg_write_seed_file(ctx, path));
|
||||
}
|
||||
#endif /* MBEDTLS_FS_IO */
|
||||
|
||||
#if defined(MBEDTLS_SELF_TEST)
|
||||
|
||||
static const unsigned char entropy_source_pr[96] =
|
||||
{ 0xc1, 0x80, 0x81, 0xa6, 0x5d, 0x44, 0x02, 0x16,
|
||||
0x19, 0xb3, 0xf1, 0x80, 0xb1, 0xc9, 0x20, 0x02,
|
||||
0x6a, 0x54, 0x6f, 0x0c, 0x70, 0x81, 0x49, 0x8b,
|
||||
0x6e, 0xa6, 0x62, 0x52, 0x6d, 0x51, 0xb1, 0xcb,
|
||||
0x58, 0x3b, 0xfa, 0xd5, 0x37, 0x5f, 0xfb, 0xc9,
|
||||
0xff, 0x46, 0xd2, 0x19, 0xc7, 0x22, 0x3e, 0x95,
|
||||
0x45, 0x9d, 0x82, 0xe1, 0xe7, 0x22, 0x9f, 0x63,
|
||||
0x31, 0x69, 0xd2, 0x6b, 0x57, 0x47, 0x4f, 0xa3,
|
||||
0x37, 0xc9, 0x98, 0x1c, 0x0b, 0xfb, 0x91, 0x31,
|
||||
0x4d, 0x55, 0xb9, 0xe9, 0x1c, 0x5a, 0x5e, 0xe4,
|
||||
0x93, 0x92, 0xcf, 0xc5, 0x23, 0x12, 0xd5, 0x56,
|
||||
0x2c, 0x4a, 0x6e, 0xff, 0xdc, 0x10, 0xd0, 0x68 };
|
||||
static const unsigned char entropy_source_pr[96] = {
|
||||
0xc1, 0x80, 0x81, 0xa6, 0x5d, 0x44, 0x02, 0x16,
|
||||
0x19, 0xb3, 0xf1, 0x80, 0xb1, 0xc9, 0x20, 0x02,
|
||||
0x6a, 0x54, 0x6f, 0x0c, 0x70, 0x81, 0x49, 0x8b,
|
||||
0x6e, 0xa6, 0x62, 0x52, 0x6d, 0x51, 0xb1, 0xcb,
|
||||
0x58, 0x3b, 0xfa, 0xd5, 0x37, 0x5f, 0xfb, 0xc9,
|
||||
0xff, 0x46, 0xd2, 0x19, 0xc7, 0x22, 0x3e, 0x95,
|
||||
0x45, 0x9d, 0x82, 0xe1, 0xe7, 0x22, 0x9f, 0x63,
|
||||
0x31, 0x69, 0xd2, 0x6b, 0x57, 0x47, 0x4f, 0xa3,
|
||||
0x37, 0xc9, 0x98, 0x1c, 0x0b, 0xfb, 0x91, 0x31,
|
||||
0x4d, 0x55, 0xb9, 0xe9, 0x1c, 0x5a, 0x5e, 0xe4,
|
||||
0x93, 0x92, 0xcf, 0xc5, 0x23, 0x12, 0xd5, 0x56,
|
||||
0x2c, 0x4a, 0x6e, 0xff, 0xdc, 0x10, 0xd0, 0x68
|
||||
};
|
||||
|
||||
static const unsigned char entropy_source_nopr[64] =
|
||||
{ 0x5a, 0x19, 0x4d, 0x5e, 0x2b, 0x31, 0x58, 0x14,
|
||||
0x54, 0xde, 0xf6, 0x75, 0xfb, 0x79, 0x58, 0xfe,
|
||||
0xc7, 0xdb, 0x87, 0x3e, 0x56, 0x89, 0xfc, 0x9d,
|
||||
0x03, 0x21, 0x7c, 0x68, 0xd8, 0x03, 0x38, 0x20,
|
||||
0xf9, 0xe6, 0x5e, 0x04, 0xd8, 0x56, 0xf3, 0xa9,
|
||||
0xc4, 0x4a, 0x4c, 0xbd, 0xc1, 0xd0, 0x08, 0x46,
|
||||
0xf5, 0x98, 0x3d, 0x77, 0x1c, 0x1b, 0x13, 0x7e,
|
||||
0x4e, 0x0f, 0x9d, 0x8e, 0xf4, 0x09, 0xf9, 0x2e };
|
||||
static const unsigned char entropy_source_nopr[64] = {
|
||||
0x5a, 0x19, 0x4d, 0x5e, 0x2b, 0x31, 0x58, 0x14,
|
||||
0x54, 0xde, 0xf6, 0x75, 0xfb, 0x79, 0x58, 0xfe,
|
||||
0xc7, 0xdb, 0x87, 0x3e, 0x56, 0x89, 0xfc, 0x9d,
|
||||
0x03, 0x21, 0x7c, 0x68, 0xd8, 0x03, 0x38, 0x20,
|
||||
0xf9, 0xe6, 0x5e, 0x04, 0xd8, 0x56, 0xf3, 0xa9,
|
||||
0xc4, 0x4a, 0x4c, 0xbd, 0xc1, 0xd0, 0x08, 0x46,
|
||||
0xf5, 0x98, 0x3d, 0x77, 0x1c, 0x1b, 0x13, 0x7e,
|
||||
0x4e, 0x0f, 0x9d, 0x8e, 0xf4, 0x09, 0xf9, 0x2e
|
||||
};
|
||||
|
||||
static const unsigned char nonce_pers_pr[16] =
|
||||
{ 0xd2, 0x54, 0xfc, 0xff, 0x02, 0x1e, 0x69, 0xd2,
|
||||
0x29, 0xc9, 0xcf, 0xad, 0x85, 0xfa, 0x48, 0x6c };
|
||||
static const unsigned char nonce_pers_pr[16] = {
|
||||
0xd2, 0x54, 0xfc, 0xff, 0x02, 0x1e, 0x69, 0xd2,
|
||||
0x29, 0xc9, 0xcf, 0xad, 0x85, 0xfa, 0x48, 0x6c
|
||||
};
|
||||
|
||||
static const unsigned char nonce_pers_nopr[16] =
|
||||
{ 0x1b, 0x54, 0xb8, 0xff, 0x06, 0x42, 0xbf, 0xf5,
|
||||
0x21, 0xf1, 0x5c, 0x1c, 0x0b, 0x66, 0x5f, 0x3f };
|
||||
static const unsigned char nonce_pers_nopr[16] = {
|
||||
0x1b, 0x54, 0xb8, 0xff, 0x06, 0x42, 0xbf, 0xf5,
|
||||
0x21, 0xf1, 0x5c, 0x1c, 0x0b, 0x66, 0x5f, 0x3f
|
||||
};
|
||||
|
||||
static const unsigned char result_pr[16] =
|
||||
{ 0x34, 0x01, 0x16, 0x56, 0xb4, 0x29, 0x00, 0x8f,
|
||||
0x35, 0x63, 0xec, 0xb5, 0xf2, 0x59, 0x07, 0x23 };
|
||||
static const unsigned char result_pr[16] = {
|
||||
0x34, 0x01, 0x16, 0x56, 0xb4, 0x29, 0x00, 0x8f,
|
||||
0x35, 0x63, 0xec, 0xb5, 0xf2, 0x59, 0x07, 0x23
|
||||
};
|
||||
|
||||
static const unsigned char result_nopr[16] =
|
||||
{ 0xa0, 0x54, 0x30, 0x3d, 0x8a, 0x7e, 0xa9, 0x88,
|
||||
0x9d, 0x90, 0x3e, 0x07, 0x7c, 0x6f, 0x21, 0x8f };
|
||||
static const unsigned char result_nopr[16] = {
|
||||
0xa0, 0x54, 0x30, 0x3d, 0x8a, 0x7e, 0xa9, 0x88,
|
||||
0x9d, 0x90, 0x3e, 0x07, 0x7c, 0x6f, 0x21, 0x8f
|
||||
};
|
||||
|
||||
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 ); \
|
||||
}
|
||||
{ \
|
||||
if( verbose != 0 ) \
|
||||
mbedtls_printf( "failed\n" ); \
|
||||
return( 1 ); \
|
||||
}
|
||||
|
||||
/*
|
||||
* 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[16];
|
||||
|
||||
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;
|
||||
CHK( mbedtls_ctr_drbg_seed_entropy_len( &ctx, ctr_drbg_self_test_entropy,
|
||||
(void *) entropy_source_pr, nonce_pers_pr, 16, 32 ) );
|
||||
mbedtls_ctr_drbg_set_prediction_resistance( &ctx, MBEDTLS_CTR_DRBG_PR_ON );
|
||||
CHK( mbedtls_ctr_drbg_random( &ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE ) );
|
||||
CHK( mbedtls_ctr_drbg_random( &ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE ) );
|
||||
CHK( memcmp( buf, result_pr, MBEDTLS_CTR_DRBG_BLOCKSIZE ) );
|
||||
CHK(mbedtls_ctr_drbg_seed_entropy_len(&ctx, ctr_drbg_self_test_entropy,
|
||||
(void *) entropy_source_pr, nonce_pers_pr, 16, 32));
|
||||
mbedtls_ctr_drbg_set_prediction_resistance(&ctx, MBEDTLS_CTR_DRBG_PR_ON);
|
||||
CHK(mbedtls_ctr_drbg_random(&ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE));
|
||||
CHK(mbedtls_ctr_drbg_random(&ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE));
|
||||
CHK(memcmp(buf, result_pr, MBEDTLS_CTR_DRBG_BLOCKSIZE));
|
||||
|
||||
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;
|
||||
CHK( mbedtls_ctr_drbg_seed_entropy_len( &ctx, ctr_drbg_self_test_entropy,
|
||||
(void *) entropy_source_nopr, nonce_pers_nopr, 16, 32 ) );
|
||||
CHK( mbedtls_ctr_drbg_random( &ctx, buf, 16 ) );
|
||||
CHK( mbedtls_ctr_drbg_reseed( &ctx, NULL, 0 ) );
|
||||
CHK( mbedtls_ctr_drbg_random( &ctx, buf, 16 ) );
|
||||
CHK( memcmp( buf, result_nopr, 16 ) );
|
||||
CHK(mbedtls_ctr_drbg_seed_entropy_len(&ctx, ctr_drbg_self_test_entropy,
|
||||
(void *) entropy_source_nopr, nonce_pers_nopr, 16, 32));
|
||||
CHK(mbedtls_ctr_drbg_random(&ctx, buf, 16));
|
||||
CHK(mbedtls_ctr_drbg_reseed(&ctx, NULL, 0));
|
||||
CHK(mbedtls_ctr_drbg_random(&ctx, buf, 16));
|
||||
CHK(memcmp(buf, result_nopr, 16));
|
||||
|
||||
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 */
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue