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Diffstat (limited to 'libtomcrypt/src/modes/xts/xts_test.c')
-rw-r--r--libtomcrypt/src/modes/xts/xts_test.c195
1 files changed, 151 insertions, 44 deletions
diff --git a/libtomcrypt/src/modes/xts/xts_test.c b/libtomcrypt/src/modes/xts/xts_test.c
index b91e0f4..347fb4b 100644
--- a/libtomcrypt/src/modes/xts/xts_test.c
+++ b/libtomcrypt/src/modes/xts/xts_test.c
@@ -5,15 +5,70 @@
*
* The library is free for all purposes without any express
* guarantee it works.
- *
- * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "tomcrypt.h"
#ifdef LTC_XTS_MODE
-/**
+#ifndef LTC_NO_TEST
+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;
+ int (*orig)(const unsigned char *, unsigned char *,
+ unsigned long , unsigned char *, symmetric_key *,
+ symmetric_key *);
+
+ /* 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;
+ }
+ }
+ 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;
+ int (*orig)(const unsigned char *, unsigned char *,
+ unsigned long , unsigned char *, symmetric_key *,
+ symmetric_key *);
+
+ /* 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;
+ }
+ }
+ 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;
+}
+#endif
+
+/**
Source donated by Elliptic Semiconductor Inc (www.ellipticsemi.com) to the LibTom Projects
+
Returns CRYPT_OK upon success.
*/
int xts_test(void)
@@ -21,7 +76,8 @@ int xts_test(void)
#ifdef LTC_NO_TEST
return CRYPT_NOP;
#else
- static const struct {
+ static const struct
+ {
int keylen;
unsigned char key1[32];
unsigned char key2[32];
@@ -142,50 +198,102 @@ int xts_test(void)
},
};
- unsigned char OUT[512], T[16];
- ulong64 seq;
+ unsigned char OUT[512], Torg[16], T[16];
+ ulong64 seq;
symmetric_xts xts;
- int i, err, idx;
+ int i, j, k, err, idx;
+ 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 */
if ((idx = find_cipher("aes")) == -1) {
if ((idx = find_cipher("rijndael")) == -1) {
return CRYPT_NOP;
}
}
+ for (k = 0; k < 4; ++k) {
+ cipher_descriptor[idx].accel_xts_encrypt = NULL;
+ cipher_descriptor[idx].accel_xts_decrypt = NULL;
+ if (k & 0x1) {
+ cipher_descriptor[idx].accel_xts_encrypt = _xts_test_accel_xts_encrypt;
+ }
+ if (k & 0x2) {
+ cipher_descriptor[idx].accel_xts_decrypt = _xts_test_accel_xts_decrypt;
+ }
+ 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);
+ 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) {
+ 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;
+ }
+ }
- for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) {
- 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,T);
- XMEMSET(T+8, 0, 8);
-
- err = xts_encrypt(tests[i].PTX, tests[i].PTLEN, OUT, T, &xts);
- if (err != CRYPT_OK) {
- xts_done(&xts);
- return err;
- }
-
- if (XMEMCMP(OUT, tests[i].CTX, tests[i].PTLEN)) {
- xts_done(&xts);
- return CRYPT_FAIL_TESTVECTOR;
- }
-
- err = xts_decrypt(tests[i].CTX, tests[i].PTLEN, OUT, T, &xts);
- if (err != CRYPT_OK) {
- xts_done(&xts);
- return err;
- }
-
- if (XMEMCMP(OUT, tests[i].PTX, tests[i].PTLEN)) {
- xts_done(&xts);
- return CRYPT_FAIL_TESTVECTOR;
- }
- xts_done(&xts);
+ if (compare_testvector(OUT, tests[i].PTLEN, tests[i].CTX, tests[i].PTLEN, "XTS encrypt", i)) {
+ xts_done(&xts);
+ return CRYPT_FAIL_TESTVECTOR;
+ }
+
+ XMEMCPY(T, Torg, sizeof(T));
+ if (j == 0) {
+ err = xts_decrypt(tests[i].CTX, tests[i].PTLEN, OUT, 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 (compare_testvector(OUT, tests[i].PTLEN, tests[i].PTX, tests[i].PTLEN, "XTS decrypt", i)) {
+ xts_done(&xts);
+ return CRYPT_FAIL_TESTVECTOR;
+ }
+ xts_done(&xts);
+ }
+ }
}
return CRYPT_OK;
#endif
@@ -193,7 +301,6 @@ int xts_test(void)
#endif
-/* $Source$ */
-/* $Revision$ */
-/* $Date$ */
-
+/* ref: $Format:%D$ */
+/* git commit: $Format:%H$ */
+/* commit time: $Format:%ai$ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 16:51:31 +0000