tests: AES-CTR encrypt test vectors

Verify AES-CTR encryption implementation against the test vectors in
NIST SP 800-38a. This implementations was already tested against AES SIV
and EAX mode test vectors, but this adds more explicit testing against
published CTR mode test vectors.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>

diff --git a/src/crypto/crypto_module_tests.c b/src/crypto/crypto_module_tests.c
index 1cc73d8ec16eca3900e63464207f543f2b72821f..fafb688b45f6105edb12a339406fa1d64e8139d9 100644 (file)
--- a/src/crypto/crypto_module_tests.c
+++ b/src/crypto/crypto_module_tests.c
@@ -744,6 +744,155 @@ static int test_key_wrap(void)
 }
 
 
+static int test_aes_ctr(void)
+{
+       int res = 0;
+
+#if defined(CONFIG_MESH) || defined(CONFIG_PSK)
+       /* CTR-AES*.Encrypt test vectors from NIST SP 800-38a */
+       const u8 key128[] = {
+               0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+               0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
+       };
+       const u8 counter128[] = {
+               0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+               0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+       };
+       const u8 plain128[] = {
+               0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+               0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+               0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+               0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+               0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+               0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+               0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+               0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+       };
+       const u8 cipher128[] = {
+               0x87, 0x4d, 0x61, 0x91, 0xb6, 0x20, 0xe3, 0x26,
+               0x1b, 0xef, 0x68, 0x64, 0x99, 0x0d, 0xb6, 0xce,
+               0x98, 0x06, 0xf6, 0x6b, 0x79, 0x70, 0xfd, 0xff,
+               0x86, 0x17, 0x18, 0x7b, 0xb9, 0xff, 0xfd, 0xff,
+               0x5a, 0xe4, 0xdf, 0x3e, 0xdb, 0xd5, 0xd3, 0x5e,
+               0x5b, 0x4f, 0x09, 0x02, 0x0d, 0xb0, 0x3e, 0xab,
+               0x1e, 0x03, 0x1d, 0xda, 0x2f, 0xbe, 0x03, 0xd1,
+               0x79, 0x21, 0x70, 0xa0, 0xf3, 0x00, 0x9c, 0xee
+       };
+       const u8 key192[] = {
+               0x8e, 0x73, 0xb0, 0xf7, 0xda, 0x0e, 0x64, 0x52,
+               0xc8, 0x10, 0xf3, 0x2b, 0x80, 0x90, 0x79, 0xe5,
+               0x62, 0xf8, 0xea, 0xd2, 0x52, 0x2c, 0x6b, 0x7b
+       };
+       const u8 counter192[] = {
+               0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+               0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+       };
+       const u8 plain192[] = {
+               0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+               0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+               0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+               0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+               0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+               0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+               0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+               0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+       };
+       const u8 cipher192[] = {
+               0x1a, 0xbc, 0x93, 0x24, 0x17, 0x52, 0x1c, 0xa2,
+               0x4f, 0x2b, 0x04, 0x59, 0xfe, 0x7e, 0x6e, 0x0b,
+               0x09, 0x03, 0x39, 0xec, 0x0a, 0xa6, 0xfa, 0xef,
+               0xd5, 0xcc, 0xc2, 0xc6, 0xf4, 0xce, 0x8e, 0x94,
+               0x1e, 0x36, 0xb2, 0x6b, 0xd1, 0xeb, 0xc6, 0x70,
+               0xd1, 0xbd, 0x1d, 0x66, 0x56, 0x20, 0xab, 0xf7,
+               0x4f, 0x78, 0xa7, 0xf6, 0xd2, 0x98, 0x09, 0x58,
+               0x5a, 0x97, 0xda, 0xec, 0x58, 0xc6, 0xb0, 0x50
+       };
+       const u8 key256[] = {
+               0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe,
+               0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
+               0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7,
+               0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4
+       };
+       const u8 counter256[] = {
+               0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+               0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+       };
+       const u8 plain256[] = {
+               0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
+               0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
+               0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
+               0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
+               0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
+               0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
+               0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
+               0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
+       };
+       const u8 cipher256[] = {
+               0x60, 0x1e, 0xc3, 0x13, 0x77, 0x57, 0x89, 0xa5,
+               0xb7, 0xa7, 0xf5, 0x04, 0xbb, 0xf3, 0xd2, 0x28,
+               0xf4, 0x43, 0xe3, 0xca, 0x4d, 0x62, 0xb5, 0x9a,
+               0xca, 0x84, 0xe9, 0x90, 0xca, 0xca, 0xf5, 0xc5,
+               0x2b, 0x09, 0x30, 0xda, 0xa2, 0x3d, 0xe9, 0x4c,
+               0xe8, 0x70, 0x17, 0xba, 0x2d, 0x84, 0x98, 0x8d,
+               0xdf, 0xc9, 0xc5, 0x8d, 0xb6, 0x7a, 0xad, 0xa6,
+               0x13, 0xc2, 0xdd, 0x08, 0x45, 0x79, 0x41, 0xa6
+       };
+       size_t len;
+       u8 *tmp;
+
+       wpa_printf(MSG_DEBUG, "CTR-AES128.Encrypt");
+       len = sizeof(plain128);
+       tmp = os_malloc(len);
+       if (!tmp)
+               return -1;
+       os_memcpy(tmp, plain128, len);
+       if (aes_ctr_encrypt(key128, sizeof(key128), counter128, tmp, len) < 0) {
+               wpa_printf(MSG_ERROR, "aes_ctr_encrypt() failed");
+               res = -1;
+       } else if (os_memcmp(tmp, cipher128, len) != 0) {
+               wpa_printf(MSG_ERROR,
+                          "CTR-AES128.Encrypt test vector did not match");
+               res = -1;
+       }
+       os_free(tmp);
+
+       wpa_printf(MSG_DEBUG, "CTR-AES192.Encrypt");
+       len = sizeof(plain192);
+       tmp = os_malloc(len);
+       if (!tmp)
+               return -1;
+       os_memcpy(tmp, plain192, len);
+       if (aes_ctr_encrypt(key192, sizeof(key192), counter192, tmp, len) < 0) {
+               wpa_printf(MSG_ERROR, "aes_ctr_encrypt() failed");
+               res = -1;
+       } else if (os_memcmp(tmp, cipher192, len) != 0) {
+               wpa_printf(MSG_ERROR,
+                          "CTR-AES192.Encrypt test vector did not match");
+               res = -1;
+       }
+       os_free(tmp);
+
+       wpa_printf(MSG_DEBUG, "CTR-AES256.Encrypt");
+       len = sizeof(plain256);
+       tmp = os_malloc(len);
+       if (!tmp)
+               return -1;
+       os_memcpy(tmp, plain256, len);
+       if (aes_ctr_encrypt(key256, sizeof(key256), counter256, tmp, len) < 0) {
+               wpa_printf(MSG_ERROR, "aes_ctr_encrypt() failed");
+               res = -1;
+       } else if (os_memcmp(tmp, cipher256, len) != 0) {
+               wpa_printf(MSG_ERROR,
+                          "CTR-AES256.Encrypt test vector did not match");
+               res = -1;
+       }
+       os_free(tmp);
+#endif
+
+       return res;
+}
+
+
 static int test_md5(void)
 {
 #ifndef CONFIG_FIPS
@@ -2154,6 +2303,7 @@ int crypto_module_tests(void)
            test_cbc() ||
            test_ecb() ||
            test_key_wrap() ||
+           test_aes_ctr() ||
            test_md5() ||
            test_sha1() ||
            test_sha256() ||