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Diffstat (limited to 'libtomcrypt/src/encauth/ccm/ccm_test.c')
-rw-r--r--libtomcrypt/src/encauth/ccm/ccm_test.c183
1 files changed, 130 insertions, 53 deletions
diff --git a/libtomcrypt/src/encauth/ccm/ccm_test.c b/libtomcrypt/src/encauth/ccm/ccm_test.c
index 9b63ffc..6d1e1e6 100644
--- a/libtomcrypt/src/encauth/ccm/ccm_test.c
+++ b/libtomcrypt/src/encauth/ccm/ccm_test.c
@@ -5,8 +5,6 @@
*
* 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"
@@ -32,14 +30,14 @@ int ccm_test(void)
int ptlen;
unsigned char ct[64];
unsigned char tag[16];
- int taglen;
+ unsigned long taglen;
} tests[] = {
/* 13 byte nonce, 8 byte auth, 23 byte pt */
{
- { 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+ { 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF },
- { 0x00, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, 0xA0,
+ { 0x00, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, 0xA0,
0xA1, 0xA2, 0xA3, 0xA4, 0xA5 },
13,
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 },
@@ -57,20 +55,20 @@ int ccm_test(void)
/* 13 byte nonce, 12 byte header, 19 byte pt */
{
- { 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+ { 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF },
- { 0x00, 0x00, 0x00, 0x06, 0x05, 0x04, 0x03, 0xA0,
+ { 0x00, 0x00, 0x00, 0x06, 0x05, 0x04, 0x03, 0xA0,
0xA1, 0xA2, 0xA3, 0xA4, 0xA5 },
13,
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B },
12,
- { 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13,
- 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B,
+ { 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13,
+ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B,
0x1C, 0x1D, 0x1E },
19,
- { 0xA2, 0x8C, 0x68, 0x65, 0x93, 0x9A, 0x9A, 0x79,
- 0xFA, 0xAA, 0x5C, 0x4C, 0x2A, 0x9D, 0x4A, 0x91,
+ { 0xA2, 0x8C, 0x68, 0x65, 0x93, 0x9A, 0x9A, 0x79,
+ 0xFA, 0xAA, 0x5C, 0x4C, 0x2A, 0x9D, 0x4A, 0x91,
0xCD, 0xAC, 0x8C },
{ 0x96, 0xC8, 0x61, 0xB9, 0xC9, 0xE6, 0x1E, 0xF1 },
8
@@ -78,7 +76,7 @@ int ccm_test(void)
/* supplied by Brian Gladman */
{
- { 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ { 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f },
{ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16 },
7,
@@ -92,31 +90,34 @@ int ccm_test(void)
},
{
- { 0xc9, 0x7c, 0x1f, 0x67, 0xce, 0x37, 0x11, 0x85,
+ { 0xc9, 0x7c, 0x1f, 0x67, 0xce, 0x37, 0x11, 0x85,
0x51, 0x4a, 0x8a, 0x19, 0xf2, 0xbd, 0xd5, 0x2f },
- { 0x00, 0x50, 0x30, 0xf1, 0x84, 0x44, 0x08, 0xb5,
+ { 0x00, 0x50, 0x30, 0xf1, 0x84, 0x44, 0x08, 0xb5,
0x03, 0x97, 0x76, 0xe7, 0x0c },
13,
- { 0x08, 0x40, 0x0f, 0xd2, 0xe1, 0x28, 0xa5, 0x7c,
- 0x50, 0x30, 0xf1, 0x84, 0x44, 0x08, 0xab, 0xae,
+ { 0x08, 0x40, 0x0f, 0xd2, 0xe1, 0x28, 0xa5, 0x7c,
+ 0x50, 0x30, 0xf1, 0x84, 0x44, 0x08, 0xab, 0xae,
0xa5, 0xb8, 0xfc, 0xba, 0x00, 0x00 },
22,
- { 0xf8, 0xba, 0x1a, 0x55, 0xd0, 0x2f, 0x85, 0xae,
- 0x96, 0x7b, 0xb6, 0x2f, 0xb6, 0xcd, 0xa8, 0xeb,
+ { 0xf8, 0xba, 0x1a, 0x55, 0xd0, 0x2f, 0x85, 0xae,
+ 0x96, 0x7b, 0xb6, 0x2f, 0xb6, 0xcd, 0xa8, 0xeb,
0x7e, 0x78, 0xa0, 0x50 },
20,
- { 0xf3, 0xd0, 0xa2, 0xfe, 0x9a, 0x3d, 0xbf, 0x23,
- 0x42, 0xa6, 0x43, 0xe4, 0x32, 0x46, 0xe8, 0x0c,
+ { 0xf3, 0xd0, 0xa2, 0xfe, 0x9a, 0x3d, 0xbf, 0x23,
+ 0x42, 0xa6, 0x43, 0xe4, 0x32, 0x46, 0xe8, 0x0c,
0x3c, 0x04, 0xd0, 0x19 },
{ 0x78, 0x45, 0xce, 0x0b, 0x16, 0xf9, 0x76, 0x23 },
8
},
};
- unsigned long taglen, x;
- unsigned char buf[64], buf2[64], tag2[16], tag[16];
+ unsigned long taglen, x, y;
+ unsigned char buf[64], buf2[64], tag[16], tag2[16], tag3[16], zero[64];
int err, idx;
symmetric_key skey;
+ ccm_state ccm;
+
+ zeromem(zero, 64);
idx = find_cipher("aes");
if (idx == -1) {
@@ -127,54 +128,130 @@ int ccm_test(void)
}
for (x = 0; x < (sizeof(tests)/sizeof(tests[0])); x++) {
+ for (y = 0; y < 2; y++) {
taglen = tests[x].taglen;
- if ((err = cipher_descriptor[idx].setup(tests[x].key, 16, 0, &skey)) != CRYPT_OK) {
- return err;
- }
-
- if ((err = ccm_memory(idx,
- tests[x].key, 16,
- &skey,
- tests[x].nonce, tests[x].noncelen,
- tests[x].header, tests[x].headerlen,
- (unsigned char*)tests[x].pt, tests[x].ptlen,
- buf,
- tag, &taglen, 0)) != CRYPT_OK) {
- return err;
+ if (y == 0) {
+ if ((err = cipher_descriptor[idx].setup(tests[x].key, 16, 0, &skey)) != CRYPT_OK) {
+ return err;
+ }
+
+ if ((err = ccm_memory(idx,
+ tests[x].key, 16,
+ &skey,
+ tests[x].nonce, tests[x].noncelen,
+ tests[x].header, tests[x].headerlen,
+ (unsigned char*)tests[x].pt, tests[x].ptlen,
+ buf,
+ tag, &taglen, 0)) != CRYPT_OK) {
+ return err;
+ }
+ /* run a second time to make sure skey is not touched */
+ if ((err = ccm_memory(idx,
+ tests[x].key, 16,
+ &skey,
+ tests[x].nonce, tests[x].noncelen,
+ tests[x].header, tests[x].headerlen,
+ (unsigned char*)tests[x].pt, tests[x].ptlen,
+ buf,
+ tag, &taglen, 0)) != CRYPT_OK) {
+ return err;
+ }
+ } else {
+ if ((err = ccm_init(&ccm, idx, tests[x].key, 16, tests[x].ptlen, tests[x].taglen, tests[x].headerlen)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_add_nonce(&ccm, tests[x].nonce, tests[x].noncelen)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_add_aad(&ccm, tests[x].header, tests[x].headerlen)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_process(&ccm, (unsigned char*)tests[x].pt, tests[x].ptlen, buf, CCM_ENCRYPT)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_done(&ccm, tag, &taglen)) != CRYPT_OK) {
+ return err;
+ }
}
- if (XMEMCMP(buf, tests[x].ct, tests[x].ptlen)) {
+ if (compare_testvector(buf, tests[x].ptlen, tests[x].ct, tests[x].ptlen, "CCM encrypt data", x)) {
return CRYPT_FAIL_TESTVECTOR;
}
- if (XMEMCMP(tag, tests[x].tag, tests[x].taglen)) {
+ if (compare_testvector(tag, taglen, tests[x].tag, tests[x].taglen, "CCM encrypt tag", x)) {
return CRYPT_FAIL_TESTVECTOR;
}
- if ((err = ccm_memory(idx,
- tests[x].key, 16,
- NULL,
- tests[x].nonce, tests[x].noncelen,
- tests[x].header, tests[x].headerlen,
- buf2, tests[x].ptlen,
- buf,
- tag2, &taglen, 1 )) != CRYPT_OK) {
- return err;
+ if (y == 0) {
+ XMEMCPY(tag3, tests[x].tag, tests[x].taglen);
+ taglen = tests[x].taglen;
+ if ((err = ccm_memory(idx,
+ tests[x].key, 16,
+ NULL,
+ tests[x].nonce, tests[x].noncelen,
+ tests[x].header, tests[x].headerlen,
+ buf2, tests[x].ptlen,
+ buf,
+ tag3, &taglen, 1 )) != CRYPT_OK) {
+ return err;
+ }
+ } else {
+ if ((err = ccm_init(&ccm, idx, tests[x].key, 16, tests[x].ptlen, tests[x].taglen, tests[x].headerlen)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_add_nonce(&ccm, tests[x].nonce, tests[x].noncelen)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_add_aad(&ccm, tests[x].header, tests[x].headerlen)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_process(&ccm, buf2, tests[x].ptlen, buf, CCM_DECRYPT)) != CRYPT_OK) {
+ return err;
+ }
+ if ((err = ccm_done(&ccm, tag2, &taglen)) != CRYPT_OK) {
+ return err;
+ }
}
- if (XMEMCMP(buf2, tests[x].pt, tests[x].ptlen)) {
+
+ if (compare_testvector(buf2, tests[x].ptlen, tests[x].pt, tests[x].ptlen, "CCM decrypt data", x)) {
return CRYPT_FAIL_TESTVECTOR;
}
- if (XMEMCMP(tag2, tests[x].tag, tests[x].taglen)) {
- return CRYPT_FAIL_TESTVECTOR;
+ if (y == 0) {
+ /* check if decryption with the wrong tag does not reveal the plaintext */
+ XMEMCPY(tag3, tests[x].tag, tests[x].taglen);
+ tag3[0] ^= 0xff; /* set the tag to the wrong value */
+ taglen = tests[x].taglen;
+ if ((err = ccm_memory(idx,
+ tests[x].key, 16,
+ NULL,
+ tests[x].nonce, tests[x].noncelen,
+ tests[x].header, tests[x].headerlen,
+ buf2, tests[x].ptlen,
+ buf,
+ tag3, &taglen, 1 )) != CRYPT_ERROR) {
+ return CRYPT_FAIL_TESTVECTOR;
+ }
+ if (compare_testvector(buf2, tests[x].ptlen, zero, tests[x].ptlen, "CCM decrypt wrong tag", x)) {
+ return CRYPT_FAIL_TESTVECTOR;
+ }
+ } else {
+ if (compare_testvector(tag2, taglen, tests[x].tag, tests[x].taglen, "CCM decrypt tag", x)) {
+ return CRYPT_FAIL_TESTVECTOR;
+ }
+ }
+
+ if (y == 0) {
+ cipher_descriptor[idx].done(&skey);
}
- cipher_descriptor[idx].done(&skey);
+ }
}
+
return CRYPT_OK;
#endif
}
#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 2024-11-27 09:18:53 +0000