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iso channel auth with des/2dea/3tdea/aes works

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This commit is contained in:
merlokk 2021-07-31 11:58:33 +03:00
parent e4eff3c40f
commit 91f000ad33
1 changed files with 3 additions and 5 deletions
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8
client/src/mifare/desfirecore.c
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@ -1293,9 +1293,8 @@ static int DesfireAuthenticateISO(DesfireContext *dctx, DesfireSecureChannel sec
memcpy(&both[rndlen], piccrnd, rndlen);
// encode
uint8_t IV[16] = {0};
if (aes_encode(IV, dctx->key, both, both, rndlen * 2))
return 303;
DesfireClearIV(dctx);
DesfireCryptoEncDec(dctx, false, both, rndlen * 2, both, true); // error 303
// external authenticate
res = DesfireISOExternalAuth(dctx, true, dctx->keyNum, dctx->keyType, both);
@ -1314,8 +1313,7 @@ static int DesfireAuthenticateISO(DesfireContext *dctx, DesfireSecureChannel sec
// decode rnddata
uint8_t piccrnd2[64] = {0};
if (aes_decode(IV, dctx->key, rnddata, piccrnd2, rndlen * 2))
return 307;
DesfireCryptoEncDec(dctx, false, rnddata, rndlen * 2, piccrnd2, false); // error 307
// check
if (memcmp(hostrnd2, &piccrnd2[rndlen], rndlen) != 0)