TeaSpeak/tomcrypt
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

also test XTS accelerators

Browse Source
This commit is contained in:
Steffen Jaeckel 2015-08-26 00:05:07 +02:00
parent 181d2f2df7
commit f9c8c9c229
1 changed files with 131 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

201
src/modes/xts/xts_test.c
View File

@ -12,6 +12,54 @@
#ifdef LTC_XTS_MODE #ifdef LTC_XTS_MODE
static int _xts_test_accel_xts_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long blocks,
unsigned char *tweak, symmetric_key *skey1, symmetric_key *skey2)
{
int ret;
symmetric_xts xts;
/* AES can be under rijndael or aes... try to find it */
if ((xts.cipher = find_cipher("aes")) == -1) {
if ((xts.cipher = find_cipher("rijndael")) == -1) {
return CRYPT_NOP;
}
}
void *orig = cipher_descriptor[xts.cipher].accel_xts_encrypt;
cipher_descriptor[xts.cipher].accel_xts_encrypt = NULL;
XMEMCPY(&xts.key1, skey1, sizeof(symmetric_key));
XMEMCPY(&xts.key2, skey2, sizeof(symmetric_key));
ret = xts_encrypt(pt, blocks << 4, ct, tweak, &xts);
cipher_descriptor[xts.cipher].accel_xts_encrypt = orig;
return ret;
}
static int _xts_test_accel_xts_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long blocks,
unsigned char *tweak, symmetric_key *skey1, symmetric_key *skey2)
{
int ret;
symmetric_xts xts;
/* AES can be under rijndael or aes... try to find it */
if ((xts.cipher = find_cipher("aes")) == -1) {
if ((xts.cipher = find_cipher("rijndael")) == -1) {
return CRYPT_NOP;
}
}
void *orig = cipher_descriptor[xts.cipher].accel_xts_decrypt;
cipher_descriptor[xts.cipher].accel_xts_decrypt = NULL;
XMEMCPY(&xts.key1, skey1, sizeof(symmetric_key));
XMEMCPY(&xts.key2, skey2, sizeof(symmetric_key));
ret = xts_decrypt(ct, blocks << 4, pt, tweak, &xts);
cipher_descriptor[xts.cipher].accel_xts_decrypt = orig;
return ret;
}
/** /**
Source donated by Elliptic Semiconductor Inc (www.ellipticsemi.com) to the LibTom Projects Source donated by Elliptic Semiconductor Inc (www.ellipticsemi.com) to the LibTom Projects
@ -147,7 +195,7 @@ int xts_test(void)
unsigned char OUT[512], Torg[16], T[16]; unsigned char OUT[512], Torg[16], T[16];
ulong64 seq; ulong64 seq;
symmetric_xts xts; symmetric_xts xts;
int i, j, err, idx; int i, j, k, err, idx;
unsigned long len; unsigned long len;
/* AES can be under rijndael or aes... try to find it */ /* AES can be under rijndael or aes... try to find it */
@ -156,89 +204,102 @@ int xts_test(void)
return CRYPT_NOP; return CRYPT_NOP;
} }
} }
for (j = 0; j < 2; j++) { for (k = 0; k < 4; ++k) {
for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) { cipher_descriptor[idx].accel_xts_encrypt = NULL;
/* skip the cases where cipher_descriptor[idx].accel_xts_decrypt = NULL;
* the length is smaller than 2*blocklen if (k & 0x1) {
* or the length is not a multiple of 32 cipher_descriptor[idx].accel_xts_encrypt = _xts_test_accel_xts_encrypt;
*/ }
if ((j == 1) && ((tests[i].PTLEN < 32) || (tests[i].PTLEN % 32))) { if (k & 0x2) {
continue; cipher_descriptor[idx].accel_xts_decrypt = _xts_test_accel_xts_decrypt;
} }
len = tests[i].PTLEN / 2; for (j = 0; j < 2; j++) {
for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
/* skip the cases where
* the length is smaller than 2*blocklen
* or the length is not a multiple of 32
*/
if ((j == 1) && ((tests[i].PTLEN < 32) || (tests[i].PTLEN % 32))) {
continue;
}
if ((k > 0) && (j == 1)) {
continue;
}
len = tests[i].PTLEN / 2;
err = xts_start(idx, tests[i].key1, tests[i].key2, tests[i].keylen / 2, 0, &xts); err = xts_start(idx, tests[i].key1, tests[i].key2, tests[i].keylen / 2, 0, &xts);
if (err != CRYPT_OK) {
return err;
}
seq = tests[i].seqnum;
STORE64L(seq, Torg);
XMEMSET(Torg + 8, 0, 8);
XMEMCPY(T, Torg, sizeof(T));
if (j == 0) {
err = xts_encrypt(tests[i].PTX, tests[i].PTLEN, OUT, T, &xts);
if (err != CRYPT_OK) { if (err != CRYPT_OK) {
xts_done(&xts);
return err; return err;
} }
} else {
err = xts_encrypt(tests[i].PTX, len, OUT, T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
err = xts_encrypt(&tests[i].PTX[len], len, &OUT[len], T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
}
if (XMEMCMP(OUT, tests[i].CTX, tests[i].PTLEN)) { seq = tests[i].seqnum;
STORE64L(seq, Torg);
XMEMSET(Torg + 8, 0, 8);
XMEMCPY(T, Torg, sizeof(T));
if (j == 0) {
err = xts_encrypt(tests[i].PTX, tests[i].PTLEN, OUT, T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
} else {
err = xts_encrypt(tests[i].PTX, len, OUT, T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
err = xts_encrypt(&tests[i].PTX[len], len, &OUT[len], T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
}
if (XMEMCMP(OUT, tests[i].CTX, tests[i].PTLEN)) {
#ifdef LTC_TEST_DBG #ifdef LTC_TEST_DBG
printf("\nTestcase #%d with original length %lu and half of it " printf("\nTestcase #%d with original length %lu and half of it "
"%lu\n", "%lu\n",
i, tests[i].PTLEN, len); i, tests[i].PTLEN, len);
printf("\nencrypt\n"); printf("\nencrypt\n");
print_hex("should", tests[i].CTX, tests[i].PTLEN); print_hex("should", tests[i].CTX, tests[i].PTLEN);
print_hex("is", OUT, tests[i].PTLEN); print_hex("is", OUT, tests[i].PTLEN);
#endif #endif
xts_done(&xts); xts_done(&xts);
return CRYPT_FAIL_TESTVECTOR; return CRYPT_FAIL_TESTVECTOR;
} }
XMEMCPY(T, Torg, sizeof(T)); XMEMCPY(T, Torg, sizeof(T));
if (j == 0) { if (j == 0) {
err = xts_decrypt(tests[i].CTX, tests[i].PTLEN, OUT, T, &xts); err = xts_decrypt(tests[i].CTX, tests[i].PTLEN, OUT, T, &xts);
if (err != CRYPT_OK) { if (err != CRYPT_OK) {
xts_done(&xts); xts_done(&xts);
return err; return err;
}
} else {
err = xts_decrypt(tests[i].CTX, len, OUT, T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
err = xts_decrypt(&tests[i].CTX[len], len, &OUT[len], T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
} }
} else {
err = xts_decrypt(tests[i].CTX, len, OUT, T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
err = xts_decrypt(&tests[i].CTX[len], len, &OUT[len], T, &xts);
if (err != CRYPT_OK) {
xts_done(&xts);
return err;
}
}
if (XMEMCMP(OUT, tests[i].PTX, tests[i].PTLEN)) { if (XMEMCMP(OUT, tests[i].PTX, tests[i].PTLEN)) {
#ifdef LTC_TEST_DBG #ifdef LTC_TEST_DBG
printf("\ndecrypt\n"); printf("\ndecrypt\n");
print_hex("should", tests[i].PTX, tests[i].PTLEN); print_hex("should", tests[i].PTX, tests[i].PTLEN);
print_hex("is", OUT, tests[i].PTLEN); print_hex("is", OUT, tests[i].PTLEN);
#endif #endif
xts_done(&xts);
return CRYPT_FAIL_TESTVECTOR;
}
xts_done(&xts); xts_done(&xts);
return CRYPT_FAIL_TESTVECTOR;
} }
xts_done(&xts);
} }
} }
return CRYPT_OK; return CRYPT_OK;