github/proxmark3
1
1
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2026-05-09 03:00:07 -04:00
Code Issues Packages Projects Releases Wiki Activity

fix DesfireAuthenticate for d40/ev1 mode

Browse Source
This commit is contained in:
merlokk
2021-07-04 13:38:12 +03:00
parent 6124b49c99
commit 430f82730d
1 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
client/src/mifare/desfirecore.c
View File

@@ -708,18 +708,18 @@ int DesfireAuthenticate(DesfireContext *dctx, DesfireSecureChannel secureChannel
uint8_t encRndA[16] = {0x00};
// - Encrypt our response
if (dctx->secureChannel == DACd40) {
des_decrypt(encRndA, RndA, key->data);
memcpy(both, encRndA, rndlen);
if ((dctx->secureChannel == DACEV1 || dctx->secureChannel == DACd40) && dctx->keyType != T_AES) {
if (dctx->keyType == T_DES) {
des_decrypt(encRndA, RndA, key->data);
memcpy(both, encRndA, rndlen);
for (uint32_t x = 0; x < rndlen; x++) {
rotRndB[x] = rotRndB[x] ^ encRndA[x];
}
for (uint32_t x = 0; x < rndlen; x++) {
rotRndB[x] = rotRndB[x] ^ encRndA[x];
}
des_decrypt(encRndB, rotRndB, key->data);
memcpy(both + rndlen, encRndB, rndlen);
} else if (dctx->secureChannel == DACEV1 && dctx->keyType != T_AES) {
if (dctx->keyType == T_3DES) {
des_decrypt(encRndB, rotRndB, key->data);
memcpy(both + rndlen, encRndB, rndlen);
} else if (dctx->keyType == T_3DES) {
uint8_t tmp[16] = {0x00};
memcpy(tmp, RndA, rndlen);
memcpy(tmp + rndlen, rotRndB, rndlen);
@@ -731,7 +731,7 @@ int DesfireAuthenticate(DesfireContext *dctx, DesfireSecureChannel secureChannel
if (g_debugMode > 1) {
PrintAndLogEx(DEBUG, "EncBoth: %s", sprint_hex(both, 16));
}
} else if (dctx->keyType == T_3K3DES) {
} else if (dctx->secureChannel == DACEV1 && dctx->keyType == T_3K3DES) {
uint8_t tmp[32] = {0x00};
memcpy(tmp, RndA, rndlen);
memcpy(tmp + rndlen, rotRndB, rndlen);