The two added tests come from the Bluetooth Mesh v1.0 specifications sample data section. --- unit/test-checksum.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) diff --git a/unit/test-checksum.c b/unit/test-checksum.c index f21d0bb..9cba88d 100644 --- a/unit/test-checksum.c +++ b/unit/test-checksum.c @@ -180,6 +180,75 @@ static void test_updatev(const void *data) l_checksum_free(checksum); } +struct aes_cmac_test_vector { + char *plaintext; + char *key; + char *ciphertext; +}; + +/* Hash AES_CMAC tests based on Bluetooth Mesh published sample data */ +static const struct aes_cmac_test_vector aes_cmac_test1 = { + .plaintext = "74657374", + .key = "00000000000000000000000000000000", + .ciphertext = "b73cefbd641ef2ea598c2b6efb62f79c", +}; + +static const struct aes_cmac_test_vector aes_cmac_test2 = { + .plaintext = "f7a2a44f8e8a8029064f173ddc1e2b00", + .key = "4f90480c1871bfbffd16971f4d8d10b1", + .ciphertext = "2ea6467aa3378c4c545eda62935b9b86", +}; + +static void test_aes_cmac(const void *data) +{ + struct l_checksum *checksum; + char *encbuf; + size_t encbuflen; + char *decbuf; + size_t decbuflen; + int r; + bool success; + const struct aes_cmac_test_vector *tv = data; + + size_t ptlen; + uint8_t *pt = l_util_from_hexstring(tv->plaintext, &ptlen) ?: + (uint8_t[]) {}; + size_t keylen; + uint8_t *key = l_util_from_hexstring(tv->key, &keylen); + size_t ctlen; + uint8_t *ct = l_util_from_hexstring(tv->ciphertext, &ctlen) ?: + (uint8_t[]) {}; + + encbuflen = ctlen; + encbuf = alloca(encbuflen); + memset(encbuf, 0, encbuflen); + decbuflen = ptlen; + decbuf = alloca(decbuflen); + memset(decbuf, 0, decbuflen); + + checksum = l_checksum_new_cmac_aes(key, keylen); + assert(checksum); + + success = l_checksum_update(checksum, pt, ptlen); + assert(success); + + ctlen = l_checksum_get_digest(checksum, encbuf, encbuflen); + assert(ctlen == encbuflen); + + r = memcmp(encbuf, ct, ctlen); + assert(!r); + + l_checksum_free(checksum); + + if (ptlen) + l_free(pt); + + l_free(key); + + if (ctlen) + l_free(ct); +} + int main(int argc, char *argv[]) { l_test_init(&argc, &argv); @@ -202,5 +271,10 @@ int main(int argc, char *argv[]) if (l_checksum_is_supported(L_CHECKSUM_SHA256, false)) l_test_add("sha256-1", test_sha256, NULL); + if (l_checksum_cmac_aes_supported()) { + l_test_add("aes-cmac-1", test_aes_cmac, &aes_cmac_test1); + l_test_add("aes-cmac-2", test_aes_cmac, &aes_cmac_test2); + } + return l_test_run(); } -- 2.14.5