diff options
Diffstat (limited to 'tests/test-aes-key-wrap.c')
| -rw-r--r-- | tests/test-aes-key-wrap.c | 163 |
1 files changed, 89 insertions, 74 deletions
diff --git a/tests/test-aes-key-wrap.c b/tests/test-aes-key-wrap.c index cc31011..34838b8 100644 --- a/tests/test-aes-key-wrap.c +++ b/tests/test-aes-key-wrap.c @@ -15,48 +15,52 @@ #endif /* - * Test cases from RFC 5649...which all use a 192-bit key, which our - * AES implementation doesn't support, to these will never pass. Feh. - * - * Have to write our own, I guess, using our Python implementation or - * something. + * Test cases from RFC 5649 all use a 192-bit key, which our AES + * implementation doesn't support, so had to write our own. */ -typedef struct { - const char *K; /* Key-encryption-key */ - const char *Q; /* Plaintext */ - const char *C; /* Ciphertext */ -} test_case_t; - -static const test_case_t test_case[] = { - - { "5840df6e29b02af1 ab493b705bf16ea1 ae8338f4dcc176a8", /* K */ - "c37b7e6492584340 bed1220780894115 5068f738", /* Q */ - "138bdeaa9b8fa7fc 61f97742e72248ee 5ae6ae5360d1ae6a 5f54f373fa543b6a"}, /* C */ - - { "5840df6e29b02af1 ab493b705bf16ea1 ae8338f4dcc176a8", /* K */ - "466f7250617369", /* Q */ - "afbeb0f07dfbf541 9200f2ccb50bb24f" } /* C */ - +static const uint8_t Q[] = { /* Plaintext, 81 bytes */ + 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x20, 0x20, 0x4d, 0x79, 0x20, 0x6e, + 0x61, 0x6d, 0x65, 0x20, 0x69, 0x73, 0x20, 0x49, 0x6e, 0x69, 0x67, 0x6f, + 0x20, 0x4d, 0x6f, 0x6e, 0x74, 0x6f, 0x79, 0x61, 0x2e, 0x20, 0x20, 0x59, + 0x6f, 0x75, 0x20, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x20, 0x6d, 0x79, 0x20, + 0x41, 0x45, 0x53, 0x20, 0x6b, 0x65, 0x79, 0x20, 0x77, 0x72, 0x61, 0x70, + 0x70, 0x65, 0x72, 0x2e, 0x20, 0x20, 0x50, 0x72, 0x65, 0x70, 0x61, 0x72, + 0x65, 0x20, 0x74, 0x6f, 0x20, 0x64, 0x69, 0x65, 0x2e }; -static int parse_hex(const char *hex, uint8_t *bin, size_t *len, const size_t max) -{ - static const char whitespace[] = " \t\r\n"; - size_t i; - - assert(hex != NULL && bin != NULL && len != NULL); - - hex += strspn(hex, whitespace); +static const uint8_t K_128[] = { /* 128-bit KEK, 16 bytes */ + 0xbc, 0x2a, 0xd8, 0x90, 0xd8, 0x91, 0x10, 0x65, 0xf0, 0x42, 0x10, 0x1b, + 0x4a, 0x6b, 0xaf, 0x99 +}; - for (i = 0; *hex != '\0' && i < max; i++, hex += 2 + strspn(hex + 2, whitespace)) - if (sscanf(hex, "%2hhx", &bin[i]) != 1) - return 0; +static const uint8_t K_256[] = { /* 256-bit KEK, 32 bytes */ + 0xe3, 0x97, 0x52, 0x81, 0x2b, 0x7e, 0xc2, 0xa4, 0x6a, 0xac, 0x50, 0x18, + 0x0d, 0x10, 0xc6, 0x85, 0x2c, 0xcf, 0x86, 0x0a, 0xa9, 0x4f, 0x69, 0xab, + 0x16, 0xa6, 0x4f, 0x3e, 0x96, 0xa0, 0xbd, 0x9e +}; - *len = i; +static const uint8_t C_128[] = { /* Plaintext wrapped by 128-bit KEK, 96 bytes */ + 0xb0, 0x10, 0x91, 0x7b, 0xe7, 0x67, 0x9c, 0x10, 0x16, 0x64, 0xe7, 0x73, + 0xd2, 0x68, 0xba, 0xed, 0x8c, 0x50, 0x49, 0x80, 0x16, 0x2f, 0x4e, 0x97, + 0xe8, 0x45, 0x5c, 0x2f, 0x2b, 0x7a, 0x88, 0x0e, 0xd8, 0xef, 0xaa, 0x40, + 0xb0, 0x2e, 0xb4, 0x50, 0xe7, 0x60, 0xf7, 0xbb, 0xed, 0x56, 0x79, 0x16, + 0x65, 0xb7, 0x13, 0x9b, 0x4c, 0x66, 0x86, 0x5f, 0x4d, 0x53, 0x2d, 0xcd, + 0x83, 0x41, 0x01, 0x35, 0x0d, 0x06, 0x39, 0x4e, 0x9e, 0xfe, 0x68, 0xc5, + 0x2f, 0x37, 0x33, 0x99, 0xbb, 0x88, 0xf7, 0x76, 0x1e, 0x82, 0x48, 0xd6, + 0xa2, 0xf3, 0x9b, 0x92, 0x01, 0x65, 0xcb, 0x48, 0x36, 0xf5, 0x42, 0xd3 +}; - return *hex == '\0'; -} +static const uint8_t C_256[] = { /* Plaintext wrapped by 256-bit KEK, 96 bytes */ + 0x08, 0x00, 0xbc, 0x1b, 0x35, 0xe4, 0x2a, 0x69, 0x3f, 0x43, 0x07, 0x54, + 0x31, 0xba, 0xb6, 0x89, 0x7c, 0x64, 0x9f, 0x03, 0x84, 0xc4, 0x4a, 0x71, + 0xdb, 0xcb, 0xae, 0x55, 0x30, 0xdf, 0xb0, 0x2b, 0xc3, 0x91, 0x5d, 0x07, + 0xa9, 0x24, 0xdb, 0xe7, 0xbe, 0x4d, 0x0d, 0x62, 0xd4, 0xf8, 0xb1, 0x94, + 0xf1, 0xb9, 0x22, 0xb5, 0x94, 0xab, 0x7e, 0x0b, 0x15, 0x6a, 0xd9, 0x5f, + 0x6c, 0x20, 0xb7, 0x7e, 0x13, 0x19, 0xfa, 0xc4, 0x70, 0xec, 0x0d, 0xbd, + 0xf7, 0x01, 0xc6, 0xb3, 0x9a, 0x19, 0xaf, 0xf2, 0x47, 0x68, 0xea, 0x7e, + 0x97, 0x7e, 0x52, 0x2e, 0xd4, 0x03, 0x31, 0xcb, 0x22, 0xb6, 0xfe, 0xf5 +}; static const char *format_hex(const uint8_t *bin, const size_t len, char *hex, const size_t max) { @@ -74,57 +78,68 @@ static const char *format_hex(const uint8_t *bin, const size_t len, char *hex, c return hex; } -static int run_test(const test_case_t * const tc) +static int run_test(const uint8_t * const K, const size_t K_len, + const uint8_t * const C, const size_t C_len) { - uint8_t K[TC_BUFSIZE], Q[TC_BUFSIZE], C[TC_BUFSIZE], q[TC_BUFSIZE], c[TC_BUFSIZE]; - size_t K_len, Q_len, C_len, q_len = sizeof(q), c_len = sizeof(c); - char h1[TC_BUFSIZE * 3], h2[TC_BUFSIZE * 3]; + const size_t Q_len = sizeof(Q); + uint8_t q[TC_BUFSIZE], c[TC_BUFSIZE]; + size_t q_len = sizeof(q), c_len = sizeof(c); + char h1[TC_BUFSIZE * 3 + 1], h2[TC_BUFSIZE * 3 + 1]; hal_error_t err; - int ok = 1; - - assert(tc != NULL); - - if (!parse_hex(tc->K, K, &K_len, sizeof(K))) - return printf("couldn't parse KEK %s\n", tc->K), 0; + int ok1 = 1, ok2 = 1; - if (!parse_hex(tc->Q, Q, &Q_len, sizeof(Q))) - return printf("couldn't parse plaintext %s\n", tc->Q), 0; + /* + * Wrap and compare results. + */ - if (!parse_hex(tc->C, C, &C_len, sizeof(C))) - return printf("couldn't parse ciphertext %s\n", tc->C), 0; - - if ((err = hal_aes_keywrap(K, K_len, Q, Q_len, c, &c_len)) != HAL_OK) - ok = printf("couldn't wrap %s: %s\n", tc->Q, hal_error_string(err)), 0; - - if ((err = hal_aes_keyunwrap(K, K_len, C, C_len, q, &q_len)) != HAL_OK) - ok = printf("couldn't unwrap %s: %s\n", tc->C, hal_error_string(err)), 0; + if ((err = hal_aes_keywrap(K, K_len, Q, Q_len, c, &c_len)) != HAL_OK) { + printf("couldn't wrap with %lu-bit KEK: %s\n", + K_len * 8, hal_error_string(err)); + ok1 = 0; + } + else if (C_len != c_len || memcmp(C, c, C_len) != 0) { + printf("ciphertext mismatch:\n Want: %s\n Got: %s\n", + format_hex(C, C_len, h1, sizeof(h1)), + format_hex(c, c_len, h2, sizeof(h2))); + ok1 = 0; + } - if (C_len != c_len || memcmp(C, c, C_len) != 0) - ok = printf("ciphertext mismatch:\n Want: %s\n Got: %s\n", - format_hex(C, C_len, h1, sizeof(h1)), - format_hex(c, c_len, h2, sizeof(h2))), 0; + /* + * Unwrap and compare results. + */ - if (Q_len != q_len || memcmp(Q, q, Q_len) != 0) - ok = printf("plaintext mismatch:\n Want: %s\n Got: %s\n", - format_hex(Q, Q_len, h1, sizeof(h1)), - format_hex(q, q_len, h2, sizeof(h2))), 0; + if ((err = hal_aes_keyunwrap(K, K_len, C, C_len, q, &q_len)) != HAL_OK) { + printf("couldn't unwrap with %lu-bit KEK: %s\n", + K_len * 8, hal_error_string(err)); + ok2 = 0; + } + else if (Q_len != q_len || memcmp(Q, q, Q_len) != 0) { + printf("plaintext mismatch:\n Want: %s\n Got: %s\n", + format_hex(Q, Q_len, h1, sizeof(h1)), + format_hex(q, q_len, h2, sizeof(h2))); + ok2 = 0; + } - return ok; + return ok1 && ok2; } int main (int argc, char *argv[]) { - int i, ok = 1; - - for (i = 0; i < sizeof(test_case)/sizeof(*test_case); i++) { - printf("Running test case #%d...", i); - if (run_test(&test_case[i])) - printf("OK\n"); - else - ok = 0; - } + int failures = 0; + + printf("Testing 128-bit KEK..."); + if (run_test(K_128, sizeof(K_128), C_128, sizeof(C_128))) + printf("OK\n"); + else + failures++; + + printf("Testing 256-bit KEK..."); + if (run_test(K_256, sizeof(K_256), C_256, sizeof(C_256))) + printf("OK\n"); + else + failures++; - return !ok; + return failures; } /* |