ADD: added the crc8legic to Lua. call it with core.crc8legic

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

diff --git a/client/nonce2key/nonce2key.c b/client/nonce2key/nonce2key.c
index 2d0590df384bf27b7bcae53d36af315245472c69..95924e5e765f56c16600d83dd4061fed83ff16f9 100644 (file)
--- a/client/nonce2key/nonce2key.c
+++ b/client/nonce2key/nonce2key.c
@@ -16,6 +16,7 @@
 
 int nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_info, uint64_t ks_info, uint64_t * key) {
 
 
 int nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_info, uint64_t ks_info, uint64_t * key) {
 

+

        struct Crypto1State *state;
        uint32_t i, pos, rr = 0, nr_diff;
        byte_t bt, ks3x[8], par[8][8];
        struct Crypto1State *state;
        uint32_t i, pos, rr = 0, nr_diff;
        byte_t bt, ks3x[8], par[8][8];


@@ -39,17 +40,22 @@ int nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_info, uint64_
 
        for ( i = 0; i < 8; i++) {
                nr_diff = nr | i << 5;
 
        for ( i = 0; i < 8; i++) {
                nr_diff = nr | i << 5;

-               printf("| %02x |%08x|", i << 5, nr_diff);
-               printf(" %01x |  %01x  |", ks3x[i], ks3x[i]^5);
+               printf("| %02x |%08x| %01x |  %01x  |", i << 5, nr_diff, ks3x[i], ks3x[i]^5);
+

                for (pos = 0; pos < 7; pos++) printf("%01x,", par[i][pos]);
                printf("%01x|\n", par[i][7]);
        }
        printf("+----+--------+---+-----+---------------+\n");
 
                for (pos = 0; pos < 7; pos++) printf("%01x,", par[i][pos]);
                printf("%01x|\n", par[i][7]);
        }
        printf("+----+--------+---+-----+---------------+\n");
 

+       clock_t t1 = clock();
+

        state = lfsr_common_prefix(nr, rr, ks3x, par);
        lfsr_rollback_word(state, uid^nt, 0);
        crypto1_get_lfsr(state, key);
        crypto1_destroy(state);
        state = lfsr_common_prefix(nr, rr, ks3x, par);
        lfsr_rollback_word(state, uid^nt, 0);
        crypto1_get_lfsr(state, key);
        crypto1_destroy(state);

+
+       t1 = clock() - t1;
+       if ( t1 > 0 ) PrintAndLog("Time in nonce2key: %.0f ticks \n", (float)t1);

        return 0;
 }
 
        return 0;
 }
 


@@ -167,9 +173,9 @@ int tryMfk64(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
        pcs = &mpcs;
        
        uid     = myuid;//(uint32_t)bytes_to_num(data +  0, 4);
        pcs = &mpcs;
        
        uid     = myuid;//(uint32_t)bytes_to_num(data +  0, 4);

-       nt              = *(uint32_t*)(data+8);
-       nr_enc = *(uint32_t*)(data+12);
-       ar_enc = *(uint32_t*)(data+16);
+       nt      = *(uint32_t*)(data+8);
+       nr_enc  = *(uint32_t*)(data+12);
+       ar_enc  = *(uint32_t*)(data+16);

        
        crypto1_word(pcs, nr_enc , 1);
        at_enc = prng_successor(nt, 96) ^ crypto1_word(pcs, 0, 0);
        
        crypto1_word(pcs, nr_enc , 1);
        at_enc = prng_successor(nt, 96) ^ crypto1_word(pcs, 0, 0);


@@ -195,4 +201,4 @@ int tryMfk64(uint64_t myuid, uint8_t *data, uint8_t *outputkey ){
        num_to_bytes(key, 6, outputkey);
        crypto1_destroy(revstate);
        return 0;
        num_to_bytes(key, 6, outputkey);
        crypto1_destroy(revstate);
        return 0;

-}
\ No newline at end of file
+}