Thomas Fossati | 656864b | 2016-07-17 08:51:22 +0100 | [diff] [blame] | 1 | /* BEGIN_HEADER */ |
| 2 | #include "mbedtls/hkdf.h" |
| 3 | /* END_HEADER */ |
| 4 | |
| 5 | /* BEGIN_DEPENDENCIES |
| 6 | * depends_on:MBEDTLS_HKDF_C |
| 7 | * END_DEPENDENCIES |
| 8 | */ |
| 9 | |
| 10 | /* BEGIN_CASE */ |
| 11 | void test_hkdf( int md_alg, char *hex_ikm_string, char *hex_salt_string, |
| 12 | char *hex_info_string, char *hex_okm_string ) |
| 13 | { |
| 14 | int ret; |
| 15 | size_t ikm_len, salt_len, info_len, okm_len; |
| 16 | unsigned char ikm[1024] = { '\0' }; |
| 17 | unsigned char salt[1024] = { '\0' }; |
| 18 | unsigned char info[1024] = { '\0' }; |
| 19 | unsigned char expected_okm[1024] = { '\0' }; |
| 20 | unsigned char okm[1024] = { '\0' }; |
| 21 | unsigned char okm_string[1000] = { '\0' }; |
| 22 | |
| 23 | const mbedtls_md_info_t *md = mbedtls_md_info_from_type( md_alg ); |
| 24 | TEST_ASSERT( md != NULL ); |
| 25 | |
| 26 | ikm_len = unhexify( ikm, hex_ikm_string ); |
| 27 | salt_len = unhexify( salt, hex_salt_string ); |
| 28 | info_len = unhexify( info, hex_info_string ); |
| 29 | okm_len = unhexify( expected_okm, hex_okm_string ); |
| 30 | |
| 31 | ret = mbedtls_hkdf( md, salt, salt_len, ikm, ikm_len, info, info_len, okm, |
| 32 | okm_len); |
| 33 | TEST_ASSERT( ret == 0 ); |
| 34 | |
| 35 | // Run hexify on it so that it looks nicer if the assertion fails |
| 36 | hexify( okm_string, okm, okm_len ); |
| 37 | TEST_ASSERT( !strcmp( (char *)okm_string, hex_okm_string ) ); |
| 38 | } |
| 39 | /* END_CASE */ |
Jaeden Amero | 3618962 | 2018-05-23 18:55:47 +0100 | [diff] [blame^] | 40 | |
| 41 | /* BEGIN_CASE */ |
| 42 | void test_hkdf_extract( int md_alg, char *hex_ikm_string, |
| 43 | char *hex_salt_string, char *hex_prk_string ) |
| 44 | { |
| 45 | int ret; |
| 46 | unsigned char *ikm = NULL; |
| 47 | unsigned char *salt = NULL; |
| 48 | unsigned char *prk = NULL; |
| 49 | unsigned char *output_prk = NULL; |
| 50 | size_t ikm_len, salt_len, prk_len, output_prk_len; |
| 51 | |
| 52 | const mbedtls_md_info_t *md = mbedtls_md_info_from_type( md_alg ); |
| 53 | TEST_ASSERT( md != NULL ); |
| 54 | |
| 55 | output_prk_len = mbedtls_md_get_size( md ); |
| 56 | output_prk = mbedtls_calloc( 1, output_prk_len ); |
| 57 | |
| 58 | ikm = unhexify_alloc( hex_ikm_string, &ikm_len ); |
| 59 | salt = unhexify_alloc( hex_salt_string, &salt_len ); |
| 60 | prk = unhexify_alloc( hex_prk_string, &prk_len ); |
| 61 | TEST_ASSERT( prk_len == output_prk_len ); |
| 62 | |
| 63 | ret = mbedtls_hkdf_extract( md, salt, salt_len, ikm, ikm_len, output_prk ); |
| 64 | TEST_ASSERT( ret == 0 ); |
| 65 | |
| 66 | TEST_ASSERT( !memcmp( output_prk, prk, prk_len ) ); |
| 67 | |
| 68 | exit: |
| 69 | mbedtls_free(ikm); |
| 70 | mbedtls_free(salt); |
| 71 | mbedtls_free(prk); |
| 72 | mbedtls_free(output_prk); |
| 73 | } |
| 74 | /* END_CASE */ |
| 75 | |
| 76 | /* BEGIN_CASE */ |
| 77 | void test_hkdf_expand( int md_alg, char *hex_info_string, |
| 78 | char *hex_prk_string, char *hex_okm_string ) |
| 79 | { |
| 80 | enum { OKM_LEN = 1024 }; |
| 81 | int ret; |
| 82 | unsigned char *info = NULL; |
| 83 | unsigned char *prk = NULL; |
| 84 | unsigned char *okm = NULL; |
| 85 | unsigned char *output_okm = NULL; |
| 86 | size_t info_len, prk_len, okm_len; |
| 87 | |
| 88 | const mbedtls_md_info_t *md = mbedtls_md_info_from_type( md_alg ); |
| 89 | TEST_ASSERT( md != NULL ); |
| 90 | |
| 91 | output_okm = mbedtls_calloc( OKM_LEN, 1 ); |
| 92 | |
| 93 | prk = unhexify_alloc( hex_prk_string, &prk_len ); |
| 94 | info = unhexify_alloc( hex_info_string, &info_len ); |
| 95 | okm = unhexify_alloc( hex_okm_string, &okm_len ); |
| 96 | TEST_ASSERT( prk_len == mbedtls_md_get_size( md ) ); |
| 97 | TEST_ASSERT( okm_len < OKM_LEN ); |
| 98 | |
| 99 | ret = mbedtls_hkdf_expand( md, prk, prk_len, info, info_len, |
| 100 | output_okm, OKM_LEN ); |
| 101 | TEST_ASSERT( ret == 0 ); |
| 102 | TEST_ASSERT( !memcmp( output_okm, okm, okm_len ) ); |
| 103 | |
| 104 | exit: |
| 105 | mbedtls_free(info); |
| 106 | mbedtls_free(prk); |
| 107 | mbedtls_free(okm); |
| 108 | mbedtls_free(output_okm); |
| 109 | } |
| 110 | /* END_CASE */ |