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Fix for early key reuse in dictionary attack state machine

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noproto
2025-01-04 04:05:40 -05:00
parent acdc5c9344
commit 56fe7b09ae
1 changed files with 2 additions and 1 deletions
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3
lib/nfc/protocols/mf_classic/mf_classic_poller.c
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@@ -1921,7 +1921,8 @@ NfcCommand mf_classic_poller_handler_nested_controller(MfClassicPoller* instance
sizeof(MfClassicKey)) :
NULL;
}
if((is_weak || is_last_iter_for_hard_key) && dict_attack_ctx->nested_nonce.count > 0) {
if((is_weak && (dict_attack_ctx->nested_nonce.count == 1)) ||
(is_last_iter_for_hard_key && (dict_attack_ctx->nested_nonce.count == 8))) {
// Key verify and reuse
dict_attack_ctx->nested_phase = MfClassicNestedPhaseDictAttackVerify;
dict_attack_ctx->auth_passed = false;