an10922 3tdea works

This commit is contained in:
merlokk 2021-08-08 18:42:54 +03:00
parent a86f332263
commit 455b9a4e38
2 changed files with 51 additions and 6 deletions

View file

@ -344,8 +344,8 @@ void MifareKdfAn10922(DesfireContext *ctx, const uint8_t *data, size_t len) {
return;
}
uint8_t cmac[DESFIRE_MAX_CRYPTO_BLOCK_SIZE] = {0};
uint8_t buffer[DESFIRE_MAX_CRYPTO_BLOCK_SIZE * 2] = {0};
uint8_t cmac[DESFIRE_MAX_CRYPTO_BLOCK_SIZE * 3] = {0};
uint8_t buffer[DESFIRE_MAX_CRYPTO_BLOCK_SIZE * 3] = {0};
if (ctx->keyType == T_AES) {
// AES uses 16 byte IV
@ -371,6 +371,26 @@ void MifareKdfAn10922(DesfireContext *ctx, const uint8_t *data, size_t len) {
DesfireCryptoCMACEx(ctx, buffer, len + 1, kbs * 2, &cmac[kbs]);
memcpy(ctx->key, cmac, kbs * 2);
} else if (ctx->keyType == T_3K3DES) {
buffer[0] = 0x31;
memcpy(&buffer[1], data, len);
DesfireClearIV(ctx);
DesfireCryptoCMACEx(ctx, buffer, len + 1, kbs * 2, cmac);
buffer[0] = 0x32;
memcpy(&buffer[1], data, len);
DesfireClearIV(ctx);
DesfireCryptoCMACEx(ctx, buffer, len + 1, kbs * 2, &cmac[kbs]);
buffer[0] = 0x33;
memcpy(&buffer[1], data, len);
DesfireClearIV(ctx);
DesfireCryptoCMACEx(ctx, buffer, len + 1, kbs * 2, &cmac[kbs * 2]);
memcpy(ctx->key, cmac, kbs * 3);
}
}

View file

@ -147,9 +147,9 @@ static bool TestAn10922KDFAES(void) {
res = res && (memcmp(dctx.key, dkey, sizeof(dkey)) == 0);
if (res)
PrintAndLogEx(INFO, "AES An10922....... " _GREEN_("passed"));
PrintAndLogEx(INFO, "An10922 AES....... " _GREEN_("passed"));
else
PrintAndLogEx(ERR, "AES An10922....... " _RED_("fail"));
PrintAndLogEx(ERR, "An10922 AES....... " _RED_("fail"));
return res;
}
@ -170,9 +170,33 @@ static bool TestAn10922KDF2TDEA(void) {
res = res && (memcmp(dctx.key, dkey, sizeof(dkey)) == 0);
if (res)
PrintAndLogEx(INFO, "2TDEA An10922..... " _GREEN_("passed"));
PrintAndLogEx(INFO, "An10922 2TDEA..... " _GREEN_("passed"));
else
PrintAndLogEx(ERR, "2TDEA An10922..... " _RED_("fail"));
PrintAndLogEx(ERR, "An10922 2TDEA..... " _RED_("fail"));
return res;
}
static bool TestAn10922KDF3TDEA(void) {
bool res = true;
uint8_t key[] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
DesfireContext dctx;
DesfireSetKey(&dctx, 0, T_3K3DES, key);
memcpy(dctx.sessionKeyMAC, key, sizeof(key));
uint8_t kdfInput[] = {0x04, 0x78, 0x2E, 0x21, 0x80, 0x1D, 0x80, 0x30, 0x42, 0xF5, 0x4E, 0x58, 0x50};
MifareKdfAn10922(&dctx, kdfInput, sizeof(kdfInput));
uint8_t dkey[] = {0x2F, 0x0D, 0xD0, 0x36, 0x75, 0xD3, 0xFB, 0x9A, 0x57, 0x05, 0xAB, 0x0B, 0xDA, 0x91, 0xCA, 0x0B,
0x55, 0xB8, 0xE0, 0x7F, 0xCD, 0xBF, 0x10, 0xEC};
res = res && (memcmp(dctx.key, dkey, sizeof(dkey)) == 0);
if (res)
PrintAndLogEx(INFO, "An10922 3TDEA..... " _GREEN_("passed"));
else
PrintAndLogEx(ERR, "An10922 3TDEA..... " _RED_("fail"));
return res;
}
@ -438,6 +462,7 @@ bool DesfireTest(bool verbose) {
res = res && TestCMACSubkeys();
res = res && TestAn10922KDFAES();
res = res && TestAn10922KDF2TDEA();
res = res && TestAn10922KDF3TDEA();
res = res && TestCMAC3TDEA();
res = res && TestCMAC2TDEA();
res = res && TestCMACDES();