diff options
author | Adam Harrison <adamdharrison@gmail.com> | 2023-07-06 06:37:41 -0400 |
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committer | Adam Harrison <adamdharrison@gmail.com> | 2023-07-06 06:37:41 -0400 |
commit | 9db10386430479067795bec66bb26343ff176ded (patch) | |
tree | 5ad0cf95abde7cf03afaf8f70af8549d46b09a46 /lib/mbedtls-2.27.0/library/hmac_drbg.c | |
parent | 57092d80cb07fa1a84873769fa92165426196054 (diff) | |
download | lite-xl-plugin-manager-9db10386430479067795bec66bb26343ff176ded.tar.gz lite-xl-plugin-manager-9db10386430479067795bec66bb26343ff176ded.zip |
Removed old mbedtls, replacing with submodule.
Diffstat (limited to 'lib/mbedtls-2.27.0/library/hmac_drbg.c')
-rw-r--r-- | lib/mbedtls-2.27.0/library/hmac_drbg.c | 629 |
1 files changed, 0 insertions, 629 deletions
diff --git a/lib/mbedtls-2.27.0/library/hmac_drbg.c b/lib/mbedtls-2.27.0/library/hmac_drbg.c deleted file mode 100644 index de97068..0000000 --- a/lib/mbedtls-2.27.0/library/hmac_drbg.c +++ /dev/null @@ -1,629 +0,0 @@ -/* - * HMAC_DRBG implementation (NIST SP 800-90) - * - * Copyright The Mbed TLS Contributors - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * The NIST SP 800-90A DRBGs are described in the following publication. - * http://csrc.nist.gov/publications/nistpubs/800-90A/SP800-90A.pdf - * References below are based on rev. 1 (January 2012). - */ - -#include "common.h" - -#if defined(MBEDTLS_HMAC_DRBG_C) - -#include "mbedtls/hmac_drbg.h" -#include "mbedtls/platform_util.h" -#include "mbedtls/error.h" - -#include <string.h> - -#if defined(MBEDTLS_FS_IO) -#include <stdio.h> -#endif - -#if defined(MBEDTLS_SELF_TEST) -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include <stdio.h> -#define mbedtls_printf printf -#endif /* MBEDTLS_SELF_TEST */ -#endif /* MBEDTLS_PLATFORM_C */ - -/* - * HMAC_DRBG context initialization - */ -void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx ) -{ - memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) ); - - ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL; -} - -/* - * HMAC_DRBG update, using optional additional data (10.1.2.2) - */ -int mbedtls_hmac_drbg_update_ret( mbedtls_hmac_drbg_context *ctx, - const unsigned char *additional, - size_t add_len ) -{ - size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info ); - unsigned char rounds = ( additional != NULL && add_len != 0 ) ? 2 : 1; - unsigned char sep[1]; - unsigned char K[MBEDTLS_MD_MAX_SIZE]; - int ret = MBEDTLS_ERR_MD_BAD_INPUT_DATA; - - for( sep[0] = 0; sep[0] < rounds; sep[0]++ ) - { - /* Step 1 or 4 */ - if( ( ret = mbedtls_md_hmac_reset( &ctx->md_ctx ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx, - ctx->V, md_len ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx, - sep, 1 ) ) != 0 ) - goto exit; - if( rounds == 2 ) - { - if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx, - additional, add_len ) ) != 0 ) - goto exit; - } - if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, K ) ) != 0 ) - goto exit; - - /* Step 2 or 5 */ - if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, K, md_len ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx, - ctx->V, md_len ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ) ) != 0 ) - goto exit; - } - -exit: - mbedtls_platform_zeroize( K, sizeof( K ) ); - return( ret ); -} - -#if !defined(MBEDTLS_DEPRECATED_REMOVED) -void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx, - const unsigned char *additional, - size_t add_len ) -{ - (void) mbedtls_hmac_drbg_update_ret( ctx, additional, add_len ); -} -#endif /* MBEDTLS_DEPRECATED_REMOVED */ - -/* - * Simplified HMAC_DRBG initialisation (for use with deterministic ECDSA) - */ -int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx, - const mbedtls_md_info_t * md_info, - const unsigned char *data, size_t data_len ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 ) - return( ret ); - -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_init( &ctx->mutex ); -#endif - - /* - * Set initial working state. - * Use the V memory location, which is currently all 0, to initialize the - * MD context with an all-zero key. Then set V to its initial value. - */ - if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, - mbedtls_md_get_size( md_info ) ) ) != 0 ) - return( ret ); - memset( ctx->V, 0x01, mbedtls_md_get_size( md_info ) ); - - if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, data, data_len ) ) != 0 ) - return( ret ); - - return( 0 ); -} - -/* - * Internal function used both for seeding and reseeding the DRBG. - * Comments starting with arabic numbers refer to section 10.1.2.4 - * of SP800-90A, while roman numbers refer to section 9.2. - */ -static int hmac_drbg_reseed_core( mbedtls_hmac_drbg_context *ctx, - const unsigned char *additional, size_t len, - int use_nonce ) -{ - unsigned char seed[MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT]; - size_t seedlen = 0; - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - { - size_t total_entropy_len; - - if( use_nonce == 0 ) - total_entropy_len = ctx->entropy_len; - else - total_entropy_len = ctx->entropy_len * 3 / 2; - - /* III. Check input length */ - if( len > MBEDTLS_HMAC_DRBG_MAX_INPUT || - total_entropy_len + len > MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT ) - { - return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG ); - } - } - - memset( seed, 0, MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT ); - - /* IV. Gather entropy_len bytes of entropy for the seed */ - if( ( ret = ctx->f_entropy( ctx->p_entropy, - seed, ctx->entropy_len ) ) != 0 ) - { - return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED ); - } - seedlen += ctx->entropy_len; - - /* For initial seeding, allow adding of nonce generated - * from the entropy source. See Sect 8.6.7 in SP800-90A. */ - if( use_nonce ) - { - /* Note: We don't merge the two calls to f_entropy() in order - * to avoid requesting too much entropy from f_entropy() - * at once. Specifically, if the underlying digest is not - * SHA-1, 3 / 2 * entropy_len is at least 36 Bytes, which - * is larger than the maximum of 32 Bytes that our own - * entropy source implementation can emit in a single - * call in configurations disabling SHA-512. */ - if( ( ret = ctx->f_entropy( ctx->p_entropy, - seed + seedlen, - ctx->entropy_len / 2 ) ) != 0 ) - { - return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED ); - } - - seedlen += ctx->entropy_len / 2; - } - - - /* 1. Concatenate entropy and additional data if any */ - if( additional != NULL && len != 0 ) - { - memcpy( seed + seedlen, additional, len ); - seedlen += len; - } - - /* 2. Update state */ - if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, seed, seedlen ) ) != 0 ) - goto exit; - - /* 3. Reset reseed_counter */ - ctx->reseed_counter = 1; - -exit: - /* 4. Done */ - mbedtls_platform_zeroize( seed, seedlen ); - return( ret ); -} - -/* - * HMAC_DRBG reseeding: 10.1.2.4 + 9.2 - */ -int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx, - const unsigned char *additional, size_t len ) -{ - return( hmac_drbg_reseed_core( ctx, additional, len, 0 ) ); -} - -/* - * HMAC_DRBG initialisation (10.1.2.3 + 9.1) - * - * The nonce is not passed as a separate parameter but extracted - * from the entropy source as suggested in 8.6.7. - */ -int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx, - const mbedtls_md_info_t * md_info, - 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; - size_t md_size; - - if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 ) - return( ret ); - - /* The mutex is initialized iff the md context is set up. */ -#if defined(MBEDTLS_THREADING_C) - mbedtls_mutex_init( &ctx->mutex ); -#endif - - md_size = mbedtls_md_get_size( md_info ); - - /* - * Set initial working state. - * Use the V memory location, which is currently all 0, to initialize the - * MD context with an all-zero key. Then set V to its initial value. - */ - if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, md_size ) ) != 0 ) - return( ret ); - memset( ctx->V, 0x01, md_size ); - - ctx->f_entropy = f_entropy; - ctx->p_entropy = p_entropy; - - if( ctx->entropy_len == 0 ) - { - /* - * See SP800-57 5.6.1 (p. 65-66) for the security strength provided by - * each hash function, then according to SP800-90A rev1 10.1 table 2, - * min_entropy_len (in bits) is security_strength. - * - * (This also matches the sizes used in the NIST test vectors.) - */ - ctx->entropy_len = md_size <= 20 ? 16 : /* 160-bits hash -> 128 bits */ - md_size <= 28 ? 24 : /* 224-bits hash -> 192 bits */ - 32; /* better (256+) -> 256 bits */ - } - - if( ( ret = hmac_drbg_reseed_core( ctx, custom, len, - 1 /* add nonce */ ) ) != 0 ) - { - return( ret ); - } - - return( 0 ); -} - -/* - * Set prediction resistance - */ -void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx, - int resistance ) -{ - ctx->prediction_resistance = resistance; -} - -/* - * Set entropy length grabbed for seeding - */ -void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, size_t len ) -{ - ctx->entropy_len = len; -} - -/* - * Set reseed interval - */ -void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, int interval ) -{ - ctx->reseed_interval = interval; -} - -/* - * HMAC_DRBG random function with optional additional data: - * 10.1.2.5 (arabic) + 9.3 (Roman) - */ -int mbedtls_hmac_drbg_random_with_add( void *p_rng, - unsigned char *output, size_t out_len, - const unsigned char *additional, size_t add_len ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng; - size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info ); - size_t left = out_len; - unsigned char *out = output; - - /* II. Check request length */ - if( out_len > MBEDTLS_HMAC_DRBG_MAX_REQUEST ) - return( MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG ); - - /* III. Check input length */ - if( add_len > MBEDTLS_HMAC_DRBG_MAX_INPUT ) - return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG ); - - /* 1. (aka VII and IX) Check reseed counter and PR */ - if( ctx->f_entropy != NULL && /* For no-reseeding instances */ - ( ctx->prediction_resistance == MBEDTLS_HMAC_DRBG_PR_ON || - ctx->reseed_counter > ctx->reseed_interval ) ) - { - if( ( ret = mbedtls_hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 ) - return( ret ); - - add_len = 0; /* VII.4 */ - } - - /* 2. Use additional data if any */ - if( additional != NULL && add_len != 0 ) - { - if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, - additional, add_len ) ) != 0 ) - goto exit; - } - - /* 3, 4, 5. Generate bytes */ - while( left != 0 ) - { - size_t use_len = left > md_len ? md_len : left; - - if( ( ret = mbedtls_md_hmac_reset( &ctx->md_ctx ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx, - ctx->V, md_len ) ) != 0 ) - goto exit; - if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ) ) != 0 ) - goto exit; - - memcpy( out, ctx->V, use_len ); - out += use_len; - left -= use_len; - } - - /* 6. Update */ - if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, - additional, add_len ) ) != 0 ) - goto exit; - - /* 7. Update reseed counter */ - ctx->reseed_counter++; - -exit: - /* 8. Done */ - return( ret ); -} - -/* - * HMAC_DRBG random function - */ -int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng; - -#if defined(MBEDTLS_THREADING_C) - if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 ) - return( ret ); -#endif - - ret = mbedtls_hmac_drbg_random_with_add( ctx, output, out_len, NULL, 0 ); - -#if defined(MBEDTLS_THREADING_C) - if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 ) - return( MBEDTLS_ERR_THREADING_MUTEX_ERROR ); -#endif - - return( ret ); -} - -/* - * This function resets HMAC_DRBG context to the state immediately - * after initial call of mbedtls_hmac_drbg_init(). - */ -void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx ) -{ - if( ctx == NULL ) - return; - -#if defined(MBEDTLS_THREADING_C) - /* The mutex is initialized iff the md context is set up. */ - if( ctx->md_ctx.md_info != NULL ) - mbedtls_mutex_free( &ctx->mutex ); -#endif - mbedtls_md_free( &ctx->md_ctx ); - mbedtls_platform_zeroize( ctx, sizeof( mbedtls_hmac_drbg_context ) ); - ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL; -} - -#if defined(MBEDTLS_FS_IO) -int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - FILE *f; - unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ]; - - if( ( f = fopen( path, "wb" ) ) == NULL ) - return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR ); - - if( ( ret = mbedtls_hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 ) - goto exit; - - if( fwrite( buf, 1, sizeof( buf ), f ) != sizeof( buf ) ) - { - ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR; - goto exit; - } - - ret = 0; - -exit: - fclose( f ); - mbedtls_platform_zeroize( buf, sizeof( buf ) ); - - return( ret ); -} - -int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path ) -{ - int ret = 0; - FILE *f = NULL; - size_t n; - unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ]; - unsigned char c; - - if( ( f = fopen( path, "rb" ) ) == NULL ) - return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR ); - - n = fread( buf, 1, sizeof( buf ), f ); - if( fread( &c, 1, 1, f ) != 0 ) - { - ret = MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG; - goto exit; - } - if( n == 0 || ferror( f ) ) - { - ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR; - goto exit; - } - fclose( f ); - f = NULL; - - ret = mbedtls_hmac_drbg_update_ret( ctx, buf, n ); - -exit: - mbedtls_platform_zeroize( buf, sizeof( buf ) ); - if( f != NULL ) - fclose( f ); - if( ret != 0 ) - return( ret ); - return( mbedtls_hmac_drbg_write_seed_file( ctx, path ) ); -} -#endif /* MBEDTLS_FS_IO */ - - -#if defined(MBEDTLS_SELF_TEST) - -#if !defined(MBEDTLS_SHA1_C) -/* Dummy checkup routine */ -int mbedtls_hmac_drbg_self_test( int verbose ) -{ - (void) verbose; - return( 0 ); -} -#else - -#define OUTPUT_LEN 80 - -/* From a NIST PR=true test vector */ -static const unsigned char entropy_pr[] = { - 0xa0, 0xc9, 0xab, 0x58, 0xf1, 0xe2, 0xe5, 0xa4, 0xde, 0x3e, 0xbd, 0x4f, - 0xf7, 0x3e, 0x9c, 0x5b, 0x64, 0xef, 0xd8, 0xca, 0x02, 0x8c, 0xf8, 0x11, - 0x48, 0xa5, 0x84, 0xfe, 0x69, 0xab, 0x5a, 0xee, 0x42, 0xaa, 0x4d, 0x42, - 0x17, 0x60, 0x99, 0xd4, 0x5e, 0x13, 0x97, 0xdc, 0x40, 0x4d, 0x86, 0xa3, - 0x7b, 0xf5, 0x59, 0x54, 0x75, 0x69, 0x51, 0xe4 }; -static const unsigned char result_pr[OUTPUT_LEN] = { - 0x9a, 0x00, 0xa2, 0xd0, 0x0e, 0xd5, 0x9b, 0xfe, 0x31, 0xec, 0xb1, 0x39, - 0x9b, 0x60, 0x81, 0x48, 0xd1, 0x96, 0x9d, 0x25, 0x0d, 0x3c, 0x1e, 0x94, - 0x10, 0x10, 0x98, 0x12, 0x93, 0x25, 0xca, 0xb8, 0xfc, 0xcc, 0x2d, 0x54, - 0x73, 0x19, 0x70, 0xc0, 0x10, 0x7a, 0xa4, 0x89, 0x25, 0x19, 0x95, 0x5e, - 0x4b, 0xc6, 0x00, 0x1d, 0x7f, 0x4e, 0x6a, 0x2b, 0xf8, 0xa3, 0x01, 0xab, - 0x46, 0x05, 0x5c, 0x09, 0xa6, 0x71, 0x88, 0xf1, 0xa7, 0x40, 0xee, 0xf3, - 0xe1, 0x5c, 0x02, 0x9b, 0x44, 0xaf, 0x03, 0x44 }; - -/* From a NIST PR=false test vector */ -static const unsigned char entropy_nopr[] = { - 0x79, 0x34, 0x9b, 0xbf, 0x7c, 0xdd, 0xa5, 0x79, 0x95, 0x57, 0x86, 0x66, - 0x21, 0xc9, 0x13, 0x83, 0x11, 0x46, 0x73, 0x3a, 0xbf, 0x8c, 0x35, 0xc8, - 0xc7, 0x21, 0x5b, 0x5b, 0x96, 0xc4, 0x8e, 0x9b, 0x33, 0x8c, 0x74, 0xe3, - 0xe9, 0x9d, 0xfe, 0xdf }; -static const unsigned char result_nopr[OUTPUT_LEN] = { - 0xc6, 0xa1, 0x6a, 0xb8, 0xd4, 0x20, 0x70, 0x6f, 0x0f, 0x34, 0xab, 0x7f, - 0xec, 0x5a, 0xdc, 0xa9, 0xd8, 0xca, 0x3a, 0x13, 0x3e, 0x15, 0x9c, 0xa6, - 0xac, 0x43, 0xc6, 0xf8, 0xa2, 0xbe, 0x22, 0x83, 0x4a, 0x4c, 0x0a, 0x0a, - 0xff, 0xb1, 0x0d, 0x71, 0x94, 0xf1, 0xc1, 0xa5, 0xcf, 0x73, 0x22, 0xec, - 0x1a, 0xe0, 0x96, 0x4e, 0xd4, 0xbf, 0x12, 0x27, 0x46, 0xe0, 0x87, 0xfd, - 0xb5, 0xb3, 0xe9, 0x1b, 0x34, 0x93, 0xd5, 0xbb, 0x98, 0xfa, 0xed, 0x49, - 0xe8, 0x5f, 0x13, 0x0f, 0xc8, 0xa4, 0x59, 0xb7 }; - -/* "Entropy" from buffer */ -static size_t test_offset; -static int hmac_drbg_self_test_entropy( void *data, - unsigned char *buf, size_t len ) -{ - const unsigned char *p = data; - memcpy( buf, p + test_offset, len ); - test_offset += len; - return( 0 ); -} - -#define CHK( c ) if( (c) != 0 ) \ - { \ - if( verbose != 0 ) \ - mbedtls_printf( "failed\n" ); \ - return( 1 ); \ - } - -/* - * Checkup routine for HMAC_DRBG with SHA-1 - */ -int mbedtls_hmac_drbg_self_test( int verbose ) -{ - mbedtls_hmac_drbg_context ctx; - unsigned char buf[OUTPUT_LEN]; - const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ); - - mbedtls_hmac_drbg_init( &ctx ); - - /* - * PR = True - */ - if( verbose != 0 ) - mbedtls_printf( " HMAC_DRBG (PR = True) : " ); - - test_offset = 0; - CHK( mbedtls_hmac_drbg_seed( &ctx, md_info, - hmac_drbg_self_test_entropy, (void *) entropy_pr, - NULL, 0 ) ); - mbedtls_hmac_drbg_set_prediction_resistance( &ctx, MBEDTLS_HMAC_DRBG_PR_ON ); - CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); - CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); - CHK( memcmp( buf, result_pr, OUTPUT_LEN ) ); - mbedtls_hmac_drbg_free( &ctx ); - - mbedtls_hmac_drbg_free( &ctx ); - - if( verbose != 0 ) - mbedtls_printf( "passed\n" ); - - /* - * PR = False - */ - if( verbose != 0 ) - mbedtls_printf( " HMAC_DRBG (PR = False) : " ); - - mbedtls_hmac_drbg_init( &ctx ); - - test_offset = 0; - CHK( mbedtls_hmac_drbg_seed( &ctx, md_info, - hmac_drbg_self_test_entropy, (void *) entropy_nopr, - NULL, 0 ) ); - CHK( mbedtls_hmac_drbg_reseed( &ctx, NULL, 0 ) ); - CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); - CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) ); - CHK( memcmp( buf, result_nopr, OUTPUT_LEN ) ); - mbedtls_hmac_drbg_free( &ctx ); - - mbedtls_hmac_drbg_free( &ctx ); - - if( verbose != 0 ) - mbedtls_printf( "passed\n" ); - - if( verbose != 0 ) - mbedtls_printf( "\n" ); - - return( 0 ); -} -#endif /* MBEDTLS_SHA1_C */ -#endif /* MBEDTLS_SELF_TEST */ - -#endif /* MBEDTLS_HMAC_DRBG_C */ |