X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6067df30c59dc58dd4bb0bb922fd28087d3f58f9..ba1324a5feddd5f9f7d7328f60202f93116c11bb:/client/cmdhfmf.c?ds=sidebyside

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 65c9dcb7..a8a1eb80 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -239,6 +239,16 @@ start:
 		c.arg[0] = false;
 		goto start;
 	} else {
+		
+		// nonce2key found a candidate key.  Lets verify it.
+		uint8_t keyblock[] = {0,0,0,0,0,0};
+		num_to_bytes(r_key, 6, keyblock);
+		uint64_t key64 = 0;
+		int res = mfCheckKeys(blockNo, keytype - 0x60 , false, 1, keyblock, &key64);
+		if ( res > 0 ) {
+			PrintAndLog("Candidate Key found (%012"llx") - Test authentication failed. Starting over darkside attack", r_key);	
+			goto start;
+		}
 		PrintAndLog("Found valid key: %012"llx" \n", r_key);
 	}
 END: