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added destroy revstate and hint about key

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This commit is contained in:
merlokk 2018-02-08 15:06:19 +02:00
commit 4809a4901b
1 changed files with 10 additions and 4 deletions
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14
client/mifarehost.c
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@ -883,10 +883,13 @@ int mfTraceDecode(uint8_t *data_src, int len, uint8_t parity, bool wantSaveToEml
lfsr_rollback_word(revstate, uid ^ nt, 0); lfsr_rollback_word(revstate, uid ^ nt, 0);
crypto1_get_lfsr(revstate, &lfsr); crypto1_get_lfsr(revstate, &lfsr);
crypto1_destroy(revstate);
ui64Key = lfsr; ui64Key = lfsr;
printf("key> %x%x Prng:%s\n", printf("key> probable key:%x%x Prng:%s ks2:%08x ks3:%08x\n",
(unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF), (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF),
validate_prng_nonce(nt) ? "WEAK": "HARDEND"); validate_prng_nonce(nt) ? "WEAK": "HARDEND",
ks2,
ks3);
AddLogUint64(logHexFileName, "key> ", lfsr); AddLogUint64(logHexFileName, "key> ", lfsr);
} else { } else {
if (validate_prng_nonce(nt)) { if (validate_prng_nonce(nt)) {
@ -927,9 +930,12 @@ int mfTraceDecode(uint8_t *data_src, int len, uint8_t parity, bool wantSaveToEml
lfsr_rollback_word(revstate, uid ^ nt, 0); lfsr_rollback_word(revstate, uid ^ nt, 0);
crypto1_get_lfsr(revstate, &lfsr); crypto1_get_lfsr(revstate, &lfsr);
crypto1_destroy(revstate);
ui64Key = lfsr; ui64Key = lfsr;
printf("key> %x%x\n", printf("key> probable key:%x%x ks2:%08x ks3:%08x\n",
(unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF)); (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF),
ks2,
ks3);
AddLogUint64(logHexFileName, "key> ", lfsr); AddLogUint64(logHexFileName, "key> ", lfsr);
} else { } else {
printf("key> hardnested not implemented!\n"); printf("key> hardnested not implemented!\n");