X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/219a334de5f6af339e6d9a9ca0ea215c4565e778..bfaecce6ebf50e296a1a4d221411581ff96f91c3:/client/nonce2key/nonce2key.c

diff --git a/client/nonce2key/nonce2key.c b/client/nonce2key/nonce2key.c
index 1c7ee14c..032b15c4 100644
--- a/client/nonce2key/nonce2key.c
+++ b/client/nonce2key/nonce2key.c
@@ -14,7 +14,7 @@
 #include "ui.h"
 
 int nonce2key(uint32_t uid, uint32_t nt, uint64_t par_info, uint64_t ks_info, uint64_t * key) {
-  struct Crypto1State *state;
+  struct Crypto1State *state, *state_s;
   uint32_t pos, nr, rr, nr_diff;//, ks1, ks2;
   byte_t bt, i, ks3x[8], par[8][8];
   uint64_t key_recovered;
@@ -47,9 +47,17 @@ int nonce2key(uint32_t uid, uint32_t nt, uint64_t par_info, uint64_t ks_info, ui
   }
   
   state = lfsr_common_prefix(nr, rr, ks3x, par);
-  lfsr_rollback_word(state, uid^nt, 0);
-  crypto1_get_lfsr(state, &key_recovered);
-  crypto1_destroy(state);
+	state_s = 0;
+	for (i = 0; (state) && ((state + i)->odd != 0 || (state + i)->even != 0) && (i < 10); i++)
+	{
+    printf("%08x|%08x\n",(state+i)->odd, (state+i)->even);
+		state_s = state + i;
+	}
+  if (!state_s) return 1;
+	
+  lfsr_rollback_word(state_s, uid^nt, 0);
+  crypto1_get_lfsr(state_s, &key_recovered);
+  if (!state) free(state);
 	
 	*key = key_recovered;