diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/library/pkcs5.c')
| -rw-r--r-- | lib/mbedtls-2.27.0/library/pkcs5.c | 420 |
1 files changed, 0 insertions, 420 deletions
diff --git a/lib/mbedtls-2.27.0/library/pkcs5.c b/lib/mbedtls-2.27.0/library/pkcs5.c deleted file mode 100644 index 2b014d9..0000000 --- a/lib/mbedtls-2.27.0/library/pkcs5.c +++ /dev/null @@ -1,420 +0,0 @@ -/** - * \file pkcs5.c - * - * \brief PKCS#5 functions - * - * \author Mathias Olsson <mathias@kompetensum.com> - * - * 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. - */ -/* - * PKCS#5 includes PBKDF2 and more - * - * http://tools.ietf.org/html/rfc2898 (Specification) - * http://tools.ietf.org/html/rfc6070 (Test vectors) - */ - -#include "common.h" - -#if defined(MBEDTLS_PKCS5_C) - -#include "mbedtls/pkcs5.h" -#include "mbedtls/error.h" - -#if defined(MBEDTLS_ASN1_PARSE_C) -#include "mbedtls/asn1.h" -#include "mbedtls/cipher.h" -#include "mbedtls/oid.h" -#endif /* MBEDTLS_ASN1_PARSE_C */ - -#include <string.h> - -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include <stdio.h> -#define mbedtls_printf printf -#endif - -#if defined(MBEDTLS_ASN1_PARSE_C) -static int pkcs5_parse_pbkdf2_params( const mbedtls_asn1_buf *params, - mbedtls_asn1_buf *salt, int *iterations, - int *keylen, mbedtls_md_type_t *md_type ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - mbedtls_asn1_buf prf_alg_oid; - unsigned char *p = params->p; - const unsigned char *end = params->p + params->len; - - if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ); - /* - * PBKDF2-params ::= SEQUENCE { - * salt OCTET STRING, - * iterationCount INTEGER, - * keyLength INTEGER OPTIONAL - * prf AlgorithmIdentifier DEFAULT algid-hmacWithSHA1 - * } - * - */ - if( ( ret = mbedtls_asn1_get_tag( &p, end, &salt->len, - MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret ) ); - - salt->p = p; - p += salt->len; - - if( ( ret = mbedtls_asn1_get_int( &p, end, iterations ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret ) ); - - if( p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_int( &p, end, keylen ) ) != 0 ) - { - if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret ) ); - } - - if( p == end ) - return( 0 ); - - if( ( ret = mbedtls_asn1_get_alg_null( &p, end, &prf_alg_oid ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret ) ); - - if( mbedtls_oid_get_md_hmac( &prf_alg_oid, md_type ) != 0 ) - return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); - - if( p != end ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, - MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ) ); - - return( 0 ); -} - -int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode, - const unsigned char *pwd, size_t pwdlen, - const unsigned char *data, size_t datalen, - unsigned char *output ) -{ - int ret, iterations = 0, keylen = 0; - unsigned char *p, *end; - mbedtls_asn1_buf kdf_alg_oid, enc_scheme_oid, kdf_alg_params, enc_scheme_params; - mbedtls_asn1_buf salt; - mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1; - unsigned char key[32], iv[32]; - size_t olen = 0; - const mbedtls_md_info_t *md_info; - const mbedtls_cipher_info_t *cipher_info; - mbedtls_md_context_t md_ctx; - mbedtls_cipher_type_t cipher_alg; - mbedtls_cipher_context_t cipher_ctx; - - p = pbe_params->p; - end = p + pbe_params->len; - - /* - * PBES2-params ::= SEQUENCE { - * keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}}, - * encryptionScheme AlgorithmIdentifier {{PBES2-Encs}} - * } - */ - if( pbe_params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, - MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) ); - - if( ( ret = mbedtls_asn1_get_alg( &p, end, &kdf_alg_oid, - &kdf_alg_params ) ) != 0 ) - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret ) ); - - // Only PBKDF2 supported at the moment - // - if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBKDF2, &kdf_alg_oid ) != 0 ) - return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); - - if( ( ret = pkcs5_parse_pbkdf2_params( &kdf_alg_params, - &salt, &iterations, &keylen, - &md_type ) ) != 0 ) - { - return( ret ); - } - - md_info = mbedtls_md_info_from_type( md_type ); - if( md_info == NULL ) - return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); - - if( ( ret = mbedtls_asn1_get_alg( &p, end, &enc_scheme_oid, - &enc_scheme_params ) ) != 0 ) - { - return( MBEDTLS_ERROR_ADD( MBEDTLS_ERR_PKCS5_INVALID_FORMAT, ret ) ); - } - - if( mbedtls_oid_get_cipher_alg( &enc_scheme_oid, &cipher_alg ) != 0 ) - return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); - - cipher_info = mbedtls_cipher_info_from_type( cipher_alg ); - if( cipher_info == NULL ) - return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE ); - - /* - * The value of keylen from pkcs5_parse_pbkdf2_params() is ignored - * since it is optional and we don't know if it was set or not - */ - keylen = cipher_info->key_bitlen / 8; - - if( enc_scheme_params.tag != MBEDTLS_ASN1_OCTET_STRING || - enc_scheme_params.len != cipher_info->iv_size ) - { - return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT ); - } - - mbedtls_md_init( &md_ctx ); - mbedtls_cipher_init( &cipher_ctx ); - - memcpy( iv, enc_scheme_params.p, enc_scheme_params.len ); - - if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 ) - goto exit; - - if( ( ret = mbedtls_pkcs5_pbkdf2_hmac( &md_ctx, pwd, pwdlen, salt.p, salt.len, - iterations, keylen, key ) ) != 0 ) - { - goto exit; - } - - if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 ) - goto exit; - - if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, - (mbedtls_operation_t) mode ) ) != 0 ) - goto exit; - - if( ( ret = mbedtls_cipher_crypt( &cipher_ctx, iv, enc_scheme_params.len, - data, datalen, output, &olen ) ) != 0 ) - ret = MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH; - -exit: - mbedtls_md_free( &md_ctx ); - mbedtls_cipher_free( &cipher_ctx ); - - return( ret ); -} -#endif /* MBEDTLS_ASN1_PARSE_C */ - -int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, - const unsigned char *password, - size_t plen, const unsigned char *salt, size_t slen, - unsigned int iteration_count, - uint32_t key_length, unsigned char *output ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - int j; - unsigned int i; - unsigned char md1[MBEDTLS_MD_MAX_SIZE]; - unsigned char work[MBEDTLS_MD_MAX_SIZE]; - unsigned char md_size = mbedtls_md_get_size( ctx->md_info ); - size_t use_len; - unsigned char *out_p = output; - unsigned char counter[4]; - - memset( counter, 0, 4 ); - counter[3] = 1; - -#if UINT_MAX > 0xFFFFFFFF - if( iteration_count > 0xFFFFFFFF ) - return( MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA ); -#endif - - if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 ) - return( ret ); - while( key_length ) - { - // U1 ends up in work - // - if( ( ret = mbedtls_md_hmac_update( ctx, salt, slen ) ) != 0 ) - goto cleanup; - - if( ( ret = mbedtls_md_hmac_update( ctx, counter, 4 ) ) != 0 ) - goto cleanup; - - if( ( ret = mbedtls_md_hmac_finish( ctx, work ) ) != 0 ) - goto cleanup; - - if( ( ret = mbedtls_md_hmac_reset( ctx ) ) != 0 ) - goto cleanup; - - memcpy( md1, work, md_size ); - - for( i = 1; i < iteration_count; i++ ) - { - // U2 ends up in md1 - // - if( ( ret = mbedtls_md_hmac_update( ctx, md1, md_size ) ) != 0 ) - goto cleanup; - - if( ( ret = mbedtls_md_hmac_finish( ctx, md1 ) ) != 0 ) - goto cleanup; - - if( ( ret = mbedtls_md_hmac_reset( ctx ) ) != 0 ) - goto cleanup; - - // U1 xor U2 - // - for( j = 0; j < md_size; j++ ) - work[j] ^= md1[j]; - } - - use_len = ( key_length < md_size ) ? key_length : md_size; - memcpy( out_p, work, use_len ); - - key_length -= (uint32_t) use_len; - out_p += use_len; - - for( i = 4; i > 0; i-- ) - if( ++counter[i - 1] != 0 ) - break; - } - -cleanup: - /* Zeroise buffers to clear sensitive data from memory. */ - mbedtls_platform_zeroize( work, MBEDTLS_MD_MAX_SIZE ); - mbedtls_platform_zeroize( md1, MBEDTLS_MD_MAX_SIZE ); - - return( ret ); -} - -#if defined(MBEDTLS_SELF_TEST) - -#if !defined(MBEDTLS_SHA1_C) -int mbedtls_pkcs5_self_test( int verbose ) -{ - if( verbose != 0 ) - mbedtls_printf( " PBKDF2 (SHA1): skipped\n\n" ); - - return( 0 ); -} -#else - -#define MAX_TESTS 6 - -static const size_t plen_test_data[MAX_TESTS] = - { 8, 8, 8, 24, 9 }; - -static const unsigned char password_test_data[MAX_TESTS][32] = -{ - "password", - "password", - "password", - "passwordPASSWORDpassword", - "pass\0word", -}; - -static const size_t slen_test_data[MAX_TESTS] = - { 4, 4, 4, 36, 5 }; - -static const unsigned char salt_test_data[MAX_TESTS][40] = -{ - "salt", - "salt", - "salt", - "saltSALTsaltSALTsaltSALTsaltSALTsalt", - "sa\0lt", -}; - -static const uint32_t it_cnt_test_data[MAX_TESTS] = - { 1, 2, 4096, 4096, 4096 }; - -static const uint32_t key_len_test_data[MAX_TESTS] = - { 20, 20, 20, 25, 16 }; - -static const unsigned char result_key_test_data[MAX_TESTS][32] = -{ - { 0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71, - 0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06, - 0x2f, 0xe0, 0x37, 0xa6 }, - { 0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c, - 0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0, - 0xd8, 0xde, 0x89, 0x57 }, - { 0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a, - 0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0, - 0x65, 0xa4, 0x29, 0xc1 }, - { 0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b, - 0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a, - 0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70, - 0x38 }, - { 0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d, - 0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3 }, -}; - -int mbedtls_pkcs5_self_test( int verbose ) -{ - mbedtls_md_context_t sha1_ctx; - const mbedtls_md_info_t *info_sha1; - int ret, i; - unsigned char key[64]; - - mbedtls_md_init( &sha1_ctx ); - - info_sha1 = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ); - if( info_sha1 == NULL ) - { - ret = 1; - goto exit; - } - - if( ( ret = mbedtls_md_setup( &sha1_ctx, info_sha1, 1 ) ) != 0 ) - { - ret = 1; - goto exit; - } - - for( i = 0; i < MAX_TESTS; i++ ) - { - if( verbose != 0 ) - mbedtls_printf( " PBKDF2 (SHA1) #%d: ", i ); - - ret = mbedtls_pkcs5_pbkdf2_hmac( &sha1_ctx, password_test_data[i], - plen_test_data[i], salt_test_data[i], - slen_test_data[i], it_cnt_test_data[i], - key_len_test_data[i], key ); - if( ret != 0 || - memcmp( result_key_test_data[i], key, key_len_test_data[i] ) != 0 ) - { - if( verbose != 0 ) - mbedtls_printf( "failed\n" ); - - ret = 1; - goto exit; - } - - if( verbose != 0 ) - mbedtls_printf( "passed\n" ); - } - - if( verbose != 0 ) - mbedtls_printf( "\n" ); - -exit: - mbedtls_md_free( &sha1_ctx ); - - return( ret ); -} -#endif /* MBEDTLS_SHA1_C */ - -#endif /* MBEDTLS_SELF_TEST */ - -#endif /* MBEDTLS_PKCS5_C */ |