MINOR CHG: help text change for the "lf t55xx config" command. change NZ into NRZ

[proxmark3-svn] / client / nonce2key / nonce2key.c

diff --git a/client/nonce2key/nonce2key.c b/client/nonce2key/nonce2key.c
index 5ec9543752a2a8e220efb245b716418db918bde4..919c0a3eded18dfe4e75413fb23c76e5ff5e2b52 100644 (file)
--- a/client/nonce2key/nonce2key.c
+++ b/client/nonce2key/nonce2key.c
@@ -199,6 +199,51 @@ int tryMfk32(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
        return isSuccess;
 }
 
+int tryMfk32_moebius(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
+
+       struct Crypto1State *s,*t;
+       uint64_t key;     // recovered key
+       uint32_t uid;     // serial number
+       uint32_t nt0;      // tag challenge first
+       uint32_t nt1;      // tag challenge second
+       uint32_t nr0_enc; // first encrypted reader challenge
+       uint32_t ar0_enc; // first encrypted reader response
+       uint32_t nr1_enc; // second encrypted reader challenge
+       uint32_t ar1_enc; // second encrypted reader response   
+       bool isSuccess = FALSE;
+       int counter = 0;
+       
+       uid     = myuid;//(uint32_t)bytes_to_num(data +  0, 4);
+       nt0     = *(uint32_t*)(data+8);
+       nr0_enc = *(uint32_t*)(data+12);
+       ar0_enc = *(uint32_t*)(data+16);
+       nt1     = *(uint32_t*)(data+8);
+       nr1_enc = *(uint32_t*)(data+32);
+       ar1_enc = *(uint32_t*)(data+36);
+
+       s = lfsr_recovery32(ar0_enc ^ prng_successor(nt0, 64), 0);
+  
+       for(t = s; t->odd | t->even; ++t) {
+               lfsr_rollback_word(t, 0, 0);
+               lfsr_rollback_word(t, nr0_enc, 1);
+               lfsr_rollback_word(t, uid ^ nt0, 0);
+               crypto1_get_lfsr(t, &key);
+               
+               crypto1_word(t, uid ^ nt1, 0);
+               crypto1_word(t, nr1_enc, 1);
+               if (ar1_enc == (crypto1_word(t, 0, 0) ^ prng_successor(nt1, 64))) {
+                       PrintAndLog("Found Key: [%012"llx"]",key);
+                       isSuccess = TRUE;
+                       ++counter;
+                       if (counter==20)
+                               break;
+               }
+       }
+       free(s);
+       return isSuccess;
+}
+
+
 int tryMfk64(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
 
        struct Crypto1State *revstate;