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/*
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "ogs-core.h"
#include "ogs-crypt.h"
#include "core/abts.h"
typedef struct {
unsigned char *key;
unsigned int *rk;
int key_bits;
unsigned char input[16];
unsigned char cipher_output[16];
unsigned char decipher_output[16];
} aes_test_vector_t;
static void aes_test1(abts_case *tc, void *data)
{
const int key_bits = 128;
unsigned int rk[OGS_AES_RKLENGTH(128)];
unsigned char key[16] =
"\x00\x01\x02\x03\x05\x06\x07\x08\x0A\x0B\x0C\x0D\x0F\x10\x11\x12";
unsigned char pt[16] = "\x50\x68\x12\xA4\x5F\x08\xC8\x89\xB9\x7F\x59\x80\x03\x8B\x83\x59";
unsigned char ct[16];
unsigned char expected[16] =
"\xD8\xF5\x32\x53\x82\x89\xEF\x7D\x06\xB5\x06\xA4\xFD\x5B\xE9\xC9";
int nrounds;
int rc;
nrounds = ogs_aes_setup_enc(rk, key, key_bits);
ogs_aes_encrypt(rk ,nrounds, pt, ct);
rc = memcmp(ct, expected, 16);
ABTS_INT_EQUAL(tc, 0, rc);
}
static void aes_test2(abts_case *tc, void *data)
{
unsigned char tmp[16];
int nrounds;
int rc;
aes_test_vector_t test_vector[3];
int i;
test_vector[0].key_bits = 128;
test_vector[0].key =
ogs_malloc(sizeof(char)*OGS_AES_KEYLENGTH(test_vector[0].key_bits));
test_vector[0].rk =
ogs_malloc(sizeof(unsigned int)*OGS_AES_RKLENGTH(test_vector[0].key_bits));
memcpy(test_vector[0].key,
"\x95\xA8\xEE\x8E\x89\x97\x9B\x9E"
"\xFD\xCB\xC6\xEB\x97\x97\x52\x8D",
OGS_AES_KEYLENGTH(test_vector[0].key_bits));
memcpy(test_vector[0].input,
"\x4E\xC1\x37\xA4\x26\xDA\xBF\x8A"
"\xA0\xBE\xB8\xBC\x0C\x2B\x89\xD6",
16);
memcpy(test_vector[0].cipher_output,
"\xD9\xB6\x5D\x12\x32\xBA\x01\x99"
"\xCD\xBD\x48\x7B\x2A\x1F\xD6\x46",
16);
memcpy(test_vector[0].decipher_output,
"\x95\x70\xC3\x43\x63\x56\x5B\x39"
"\x35\x03\xA0\x01\xC0\xE2\x3B\x65",
16);
test_vector[1].key_bits = 192;
test_vector[1].key =
ogs_malloc(sizeof(char)*OGS_AES_KEYLENGTH(test_vector[1].key_bits));
test_vector[1].rk =
ogs_malloc(sizeof(unsigned int)*OGS_AES_RKLENGTH(test_vector[1].key_bits));
memcpy(test_vector[1].key,
"\x95\xA8\xEE\x8E\x89\x97\x9B\x9E"
"\xFD\xCB\xC6\xEB\x97\x97\x52\x8D"
"\x43\x2D\xC2\x60\x61\x55\x38\x18",
OGS_AES_KEYLENGTH(test_vector[1].key_bits));
memcpy(test_vector[1].input ,
"\x4E\xC1\x37\xA4\x26\xDA\xBF\x8A"
"\xA0\xBE\xB8\xBC\x0C\x2B\x89\xD6",
16);
memcpy(test_vector[1].cipher_output,
"\xB1\x8B\xB3\xE7\xE1\x07\x32\xBE"
"\x13\x58\x44\x3A\x50\x4D\xBB\x49",
16);
memcpy(test_vector[1].decipher_output,
"\x29\xDF\xD7\x5B\x85\xCE\xE4\xDE"
"\x6E\x26\xA8\x08\xCD\xC2\xC9\xC3",
16);
test_vector[2].key_bits = 256;
test_vector[2].key =
ogs_malloc(sizeof(char)*OGS_AES_KEYLENGTH(test_vector[2].key_bits));
test_vector[2].rk =
ogs_malloc(sizeof(unsigned int)*OGS_AES_RKLENGTH(test_vector[2].key_bits));
memcpy(test_vector[2].key,
"\x95\xA8\xEE\x8E\x89\x97\x9B\x9E"
"\xFD\xCB\xC6\xEB\x97\x97\x52\x8D"
"\x43\x2D\xC2\x60\x61\x55\x38\x18"
"\xEA\x63\x5E\xC5\xD5\xA7\x72\x7E",
OGS_AES_KEYLENGTH(test_vector[2].key_bits));
memcpy(test_vector[2].input ,
"\x4E\xC1\x37\xA4\x26\xDA\xBF\x8A"
"\xA0\xBE\xB8\xBC\x0C\x2B\x89\xD6",
16);
memcpy(test_vector[2].cipher_output,
"\x2F\x9C\xFD\xDB\xFF\xCD\xE6\xB9"
"\xF3\x7E\xF8\xE4\x0D\x51\x2C\xF4",
16);
memcpy(test_vector[2].decipher_output,
"\x11\x0A\x35\x45\xCE\x49\xB8\x4B"
"\xBB\x7B\x35\x23\x61\x08\xFA\x6E",
16);
for (i=0; i<3; i++)
{
nrounds = ogs_aes_setup_enc(test_vector[i].rk, test_vector[i].key,
test_vector[i].key_bits);
ogs_aes_encrypt(test_vector[i].rk ,nrounds, test_vector[i].input, tmp);
rc = memcmp(tmp, test_vector[i].cipher_output, 16);
ABTS_INT_EQUAL(tc, 0, rc);
nrounds = ogs_aes_setup_dec(test_vector[i].rk, test_vector[i].key,
test_vector[i].key_bits);
ogs_aes_decrypt(test_vector[i].rk ,nrounds, test_vector[i].input, tmp);
rc = memcmp(tmp, test_vector[i].decipher_output, 16);
ABTS_INT_EQUAL(tc, 0, rc);
ogs_free(test_vector[i].key);
ogs_free(test_vector[i].rk);
}
}
#if 0
Case #1: Encrypting 16 bytes (1 block) using AES-CBC with 128-bit key
Key : 0x06a9214036b8a15b512e03d534120006
IV : 0x3dafba429d9eb430b422da802c9fac41
Plaintext : "Single block msg"
Ciphertext: 0xe353779c1079aeb82708942dbe77181a
Case #2: Encrypting 32 bytes (2 blocks) using AES-CBC with 128-bit key
Key : 0xc286696d887c9aa0611bbb3e2025a45a
IV : 0x562e17996d093d28ddb3ba695a2e6f58
Plaintext : 0x000102030405060708090a0b0c0d0e0f
101112131415161718191a1b1c1d1e1f
Ciphertext: 0xd296cd94c2cccf8a3a863028b5e1dc0a
7586602d253cfff91b8266bea6d61ab1
Case #3: Encrypting 48 bytes (3 blocks) using AES-CBC with 128-bit key
Key : 0x6c3ea0477630ce21a2ce334aa746c2cd
IV : 0xc782dc4c098c66cbd9cd27d825682c81
Plaintext : "This is a 48-byte message (exactly 3 AES blocks)"
Ciphertext: 0xd0a02b3836451753d493665d33f0e886
2dea54cdb293abc7506939276772f8d5
021c19216bad525c8579695d83ba2684
Case #4: Encrypting 64 bytes (4 blocks) using AES-CBC with 128-bit key
Key : 0x56e47a38c5598974bc46903dba290349
IV : 0x8ce82eefbea0da3c44699ed7db51b7d9
Plaintext : 0xa0a1a2a3a4a5a6a7a8a9aaabacadaeaf
b0b1b2b3b4b5b6b7b8b9babbbcbdbebf
c0c1c2c3c4c5c6c7c8c9cacbcccdcecf
d0d1d2d3d4d5d6d7d8d9dadbdcdddedf
Ciphertext: 0xc30e32ffedc0774e6aff6af0869f71aa
0f3af07a9a31a9c684db207eb0ef8e4e
35907aa632c3ffdf868bb7b29d3d46ad
83ce9f9a102ee99d49a53e87f4c3da55
#endif
typedef struct {
unsigned char key[33];
int key_bits;
unsigned char ivec[33];
unsigned char plain[65];
unsigned int plainlen;
unsigned char cipher[65];
unsigned int cipherlen;
} aes_cbc_test_vector_t;
static void aes_test3(abts_case *tc, void *data)
{
aes_cbc_test_vector_t tv[5] = {
{
"\x06\xa9\x21\x40\x36\xb8\xa1\x5b\x51\x2e\x03\xd5\x34\x12\x00\x06",
128,
"\x3d\xaf\xba\x42\x9d\x9e\xb4\x30\xb4\x22\xda\x80\x2c\x9f\xac\x41",
"Single block msg",
16,
"\xe3\x53\x77\x9c\x10\x79\xae\xb8\x27\x08\x94\x2d\xbe\x77\x18\x1a",
16
}, {
"\xc2\x86\x69\x6d\x88\x7c\x9a\xa0\x61\x1b\xbb\x3e\x20\x25\xa4\x5a",
128,
"\x56\x2e\x17\x99\x6d\x09\x3d\x28\xdd\xb3\xba\x69\x5a\x2e\x6f\x58",
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f",
32,
"\xd2\x96\xcd\x94\xc2\xcc\xcf\x8a\x3a\x86\x30\x28\xb5\xe1\xdc\x0a"
"\x75\x86\x60\x2d\x25\x3c\xff\xf9\x1b\x82\x66\xbe\xa6\xd6\x1a\xb1",
32
}, {
"\x6c\x3e\xa0\x47\x76\x30\xce\x21\xa2\xce\x33\x4a\xa7\x46\xc2\xcd",
128,
"\xc7\x82\xdc\x4c\x09\x8c\x66\xcb\xd9\xcd\x27\xd8\x25\x68\x2c\x81",
"This is a 48-byte message (exactly 3 AES blocks)",
48,
"\xd0\xa0\x2b\x38\x36\x45\x17\x53\xd4\x93\x66\x5d\x33\xf0\xe8\x86"
"\x2d\xea\x54\xcd\xb2\x93\xab\xc7\x50\x69\x39\x27\x67\x72\xf8\xd5"
"\x02\x1c\x19\x21\x6b\xad\x52\x5c\x85\x79\x69\x5d\x83\xba\x26\x84",
48
}, {
"\x56\xe4\x7a\x38\xc5\x59\x89\x74\xbc\x46\x90\x3d\xba\x29\x03\x49",
128,
"\x8c\xe8\x2e\xef\xbe\xa0\xda\x3c\x44\x69\x9e\xd7\xdb\x51\xb7\xd9",
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
"\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf",
64,
"\xc3\x0e\x32\xff\xed\xc0\x77\x4e\x6a\xff\x6a\xf0\x86\x9f\x71\xaa"
"\x0f\x3a\xf0\x7a\x9a\x31\xa9\xc6\x84\xdb\x20\x7e\xb0\xef\x8e\x4e"
"\x35\x90\x7a\xa6\x32\xc3\xff\xdf\x86\x8b\xb7\xb2\x9d\x3d\x46\xad"
"\x83\xce\x9f\x9a\x10\x2e\xe9\x9d\x49\xa5\x3e\x87\xf4\xc3\xda\x55",
64
}, {
"\x56\xe4\x7a\x38\xc5\x59\x89\x74\xbc\x46\x90\x3d\xba\x29\x03\x49",
128,
"\x8c\xe8\x2e\xef\xbe\xa0\xda\x3c\x44\x69\x9e\xd7\xdb\x51\xb7\xd9",
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
"\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd",
62,
"\xc3\x0e\x32\xff\xed\xc0\x77\x4e\x6a\xff\x6a\xf0\x86\x9f\x71\xaa"
"\x0f\x3a\xf0\x7a\x9a\x31\xa9\xc6\x84\xdb\x20\x7e\xb0\xef\x8e\x4e"
"\x35\x90\x7a\xa6\x32\xc3\xff\xdf\x86\x8b\xb7\xb2\x9d\x3d\x46\xad"
"\x5d\x96\x74\x07\xe9\x86\x0c\x0b\x50\x80\x4a\xfb\x69\xc1\x13\xaa",
64
}
};
unsigned char out[128];
unsigned int i, rc, outlen;
uint8_t ivec[32];
for (i = 0; i < 5; i++)
{
outlen = sizeof(out);
memcpy(ivec, tv[i].ivec, 16);
ogs_aes_cbc_encrypt(tv[i].key, tv[i].key_bits, ivec,
tv[i].plain, tv[i].plainlen, out, &outlen);
ABTS_INT_EQUAL(tc, tv[i].cipherlen, outlen);
rc = memcmp(tv[i].cipher, out, tv[i].cipherlen);
ABTS_INT_EQUAL(tc, 0, rc);
outlen = sizeof(out);
memcpy(ivec, tv[i].ivec, 16);
ogs_aes_cbc_decrypt(tv[i].key, tv[i].key_bits, ivec,
tv[i].cipher, tv[i].cipherlen, out, &outlen);
ABTS_INT_EQUAL(tc, tv[i].cipherlen, outlen);
rc = memcmp(tv[i].plain, out, tv[i].plainlen);
ABTS_INT_EQUAL(tc, 0, rc);
}
}
/* RFC 4493
--------------------------------------------------
Subkey Generation
K 2b7e1516 28aed2a6 abf71588 09cf4f3c
AES-128(key,0) 7df76b0c 1ab899b3 3e42f047 b91b546f
K1 fbeed618 35713366 7c85e08f 7236a8de
K2 f7ddac30 6ae266cc f90bc11e e46d513b
--------------------------------------------------
--------------------------------------------------
Example 1: len = 0
M <empty string>
AES-CMAC bb1d6929 e9593728 7fa37d12 9b756746
--------------------------------------------------
Example 2: len = 16
M 6bc1bee2 2e409f96 e93d7e11 7393172a
AES-CMAC 070a16b4 6b4d4144 f79bdd9d d04a287c
--------------------------------------------------
Example 3: len = 40
M 6bc1bee2 2e409f96 e93d7e11 7393172a
ae2d8a57 1e03ac9c 9eb76fac 45af8e51
30c81c46 a35ce411
AES-CMAC dfa66747 de9ae630 30ca3261 1497c827
--------------------------------------------------
Example 4: len = 64
M 6bc1bee2 2e409f96 e93d7e11 7393172a
ae2d8a57 1e03ac9c 9eb76fac 45af8e51
30c81c46 a35ce411 e5fbc119 1a0a52ef
f69f2445 df4f9b17 ad2b417b e66c3710
AES-CMAC 51f0bebf 7e3b9d92 fc497417 79363cfe
--------------------------------------------------
*/
static void cmac_test(abts_case *tc, void *data)
{
uint8_t key[16] = {
0x2b,0x7e,0x15,0x16,0x28,0xae,0xd2,0xa6,
0xab,0xf7,0x15,0x88,0x09,0xcf,0x4f,0x3c
};
uint8_t msg[4][64] = {
{
/* Empty string */
},
{
0x6b,0xc1,0xbe,0xe2,0x2e,0x40,0x9f,0x96,
0xe9,0x3d,0x7e,0x11,0x73,0x93,0x17,0x2a
}, {
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
}, {
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
}
};
uint32_t msglen[4] = {0, 16, 40, 64};
uint8_t cmac_answer[4][16] = {
{
0xbb,0x1d,0x69,0x29,0xe9,0x59,0x37,0x28,
0x7f,0xa3,0x7d,0x12,0x9b,0x75,0x67,0x46
}, {
0x07,0x0a,0x16,0xb4,0x6b,0x4d,0x41,0x44,
0xf7,0x9b,0xdd,0x9d,0xd0,0x4a,0x28,0x7c
}, {
0xdf,0xa6,0x67,0x47,0xde,0x9a,0xe6,0x30,
0x30,0xca,0x32,0x61,0x14,0x97,0xc8,0x27
}, {
0x51,0xf0,0xbe,0xbf,0x7e,0x3b,0x9d,0x92,
0xfc,0x49,0x74,0x17,0x79,0x36,0x3c,0xfe
}
};
uint8_t cmac[16];
int i, rc;
int rv;
for (i = 0; i < 4; i++)
{
rv = ogs_aes_cmac_calculate(cmac, key, msg[i], msglen[i]);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rc = memcmp(cmac, cmac_answer[i], 16);
ABTS_INT_EQUAL(tc, 0, rc);
}
for (i = 0; i < 4; i++)
{
rv = ogs_aes_cmac_verify(cmac_answer[i], key, msg[i], msglen[i]);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
}
key[0] = 0;
for (i = 0; i < 4; i++)
{
rv = ogs_aes_cmac_verify(cmac_answer[i], key, msg[i], msglen[i]);
ABTS_INT_EQUAL(tc, OGS_ERR_INVALID_CMAC, rv);
}
}
abts_suite *test_aes(abts_suite *suite)
{
suite = ADD_SUITE(suite)
abts_run_test(suite, aes_test1, NULL);
abts_run_test(suite, aes_test2, NULL);
abts_run_test(suite, aes_test3, NULL);
abts_run_test(suite, cmac_test, NULL);
return suite;
}
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