X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/19693bdc06cca834589aae52fdd4b8475f4aec3a..905c55de2bbe642412b47ed4e92344096c817fac:/client/nonce2key/nonce2key.c diff --git a/client/nonce2key/nonce2key.c b/client/nonce2key/nonce2key.c index 727f241d..3c3d3e19 100644 --- a/client/nonce2key/nonce2key.c +++ b/client/nonce2key/nonce2key.c @@ -19,7 +19,7 @@ int nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_info, uint64_ // Reset the last three significant bits of the reader nonce nr &= 0xffffff1f; - PrintAndLog("uid(%08x) nt(%08x) par(%016"llx") ks(%016"llx") nr(%08x)\n", uid, nt, par_info, ks_info, nr); + PrintAndLog("uid(%08x) nt(%08x) par(%016" PRIx64") ks(%016" PRIx64") nr(%08x)", uid, nt, par_info, ks_info, nr); for ( pos = 0; pos < 8; pos++ ) { ks3x[7-pos] = (ks_info >> (pos*8)) & 0x0f; @@ -30,17 +30,19 @@ int nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_info, uint64_ } } - printf("+----+--------+---+-----+---------------+\n"); - printf("|diff|{nr} |ks3|ks3^5|parity |\n"); - printf("+----+--------+---+-----+---------------+\n"); + PrintAndLog("+----+--------+---+-----+---------------+"); + PrintAndLog("|diff|{nr} |ks3|ks3^5|parity |"); + PrintAndLog("+----+--------+---+-----+---------------+"); for ( i = 0; i < 8; i++) { nr_diff = nr | 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]); + PrintAndLog("| %02x |%08x| %01x | %01x |%01x,%01x,%01x,%01x,%01x,%01x,%01x,%01x|", + i << 5, nr_diff, ks3x[i], ks3x[i]^5, + par[i][0], par[i][1], par[i][2], par[i][3], + par[i][4], par[i][5], par[i][6], par[i][7]); + } - printf("+----+--------+---+-----+---------------+\n"); + PrintAndLog("+----+--------+---+-----+---------------+"); clock_t t1 = clock(); @@ -50,7 +52,7 @@ int nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_info, uint64_ crypto1_destroy(state); t1 = clock() - t1; - if ( t1 > 0 ) PrintAndLog("Time in nonce2key: %.0f ticks \n", (float)t1); + if ( t1 > 0 ) PrintAndLog("Time in nonce2key: %.0f ticks", (float)t1); return 0; } @@ -97,7 +99,6 @@ int nonce2key_ex(uint8_t blockno, uint8_t keytype, uint32_t uid, uint32_t nt, ui state = lfsr_common_prefix_ex(nr, ks3x); if (!state) { - key_count = 0; PrintAndLog("Failed getting states"); return 1; } @@ -117,15 +118,14 @@ int nonce2key_ex(uint8_t blockno, uint8_t keytype, uint32_t uid, uint32_t nt, ui // first call to this function. clear all other stuff and set new found states. if (last_keylist == NULL) { - key_count = 0; free(last_keylist); last_keylist = state_s; PrintAndLog("parity is all zero, testing special attack. First call, this attack needs at least two calls. Hold on..."); - PrintAndLog("uid(%08x) nt(%08x) ks(%016"llx") nr(%08x)\n", uid, nt, ks_info, nr); + PrintAndLog("uid(%08x) nt(%08x) ks(%016" PRIx64") nr(%08x)", uid, nt, ks_info, nr); return 1; } - PrintAndLog("uid(%08x) nt(%08x) ks(%016"llx") nr(%08x)\n", uid, nt, ks_info, nr); + PrintAndLog("uid(%08x) nt(%08x) ks(%016" PRIx64") nr(%08x)", uid, nt, ks_info, nr); //Create the intersection: int64_t *p1, *p2, *p3; @@ -134,7 +134,12 @@ int nonce2key_ex(uint8_t blockno, uint8_t keytype, uint32_t uid, uint32_t nt, ui while ( *p1 != -1 && *p2 != -1 ) { if (compar_intA(p1, p2) == 0) { - printf("p1:%"llx" p2:%"llx" p3:%"llx" key:%012"llx"\n",(uint64_t)(p1-last_keylist),(uint64_t)(p2-state_s),(uint64_t)(p3-last_keylist),*p1); + PrintAndLog("p1:%" PRIx64" p2:%" PRIx64" p3:%" PRIx64" key:%012" PRIx64 + , (uint64_t)(p1-last_keylist) + , (uint64_t)(p2-state_s) + , (uint64_t)(p3-last_keylist) + , *p1 + ); *p3++ = *p1++; p2++; } @@ -144,12 +149,14 @@ int nonce2key_ex(uint8_t blockno, uint8_t keytype, uint32_t uid, uint32_t nt, ui } } key_count = p3 - last_keylist; - printf("key_count: %d\n", key_count); + PrintAndLog("key_count: %d", key_count); if ( key_count == 0 ){ free(state); + state = NULL; return 0; } + uint8_t retval = 1; // Validate all key candidates with testing each of them with mfCheckKeys uint8_t keyBlock[6] = {0,0,0,0,0,0}; uint64_t key64; @@ -159,13 +166,17 @@ int nonce2key_ex(uint8_t blockno, uint8_t keytype, uint32_t uid, uint32_t nt, ui key64 = 0; if (!mfCheckKeys(blockno, keytype, false, 1, keyBlock, &key64)) { *key = key64; - free(last_keylist); - last_keylist = NULL; - free(state); - return 0; + retval = 0; + goto out; } - } - return 1; + } + +out: + free(last_keylist); + last_keylist = NULL; + free(state); + state = NULL; + return retval; } // 32 bit recover key from 2 nonces @@ -186,16 +197,16 @@ bool tryMfk32(nonces_t data, uint64_t *outputkey, bool verbose) { uint32_t p64 = prng_successor(nt, 64); if ( verbose ) { - printf("Recovering key for:\n"); - printf(" uid: %08x\n",uid); - printf(" nt: %08x\n",nt); - printf(" {nr_0}: %08x\n",nr0_enc); - printf(" {ar_0}: %08x\n",ar0_enc); - printf(" {nr_1}: %08x\n",nr1_enc); - printf(" {ar_1}: %08x\n",ar1_enc); - printf("\nLFSR succesors of the tag challenge:\n"); - printf(" nt': %08x\n", p64); - printf(" nt'': %08x\n", prng_successor(p64, 32)); + PrintAndLog("Recovering key for:"); + PrintAndLog(" uid: %08x",uid); + PrintAndLog(" nt: %08x",nt); + PrintAndLog(" {nr_0}: %08x",nr0_enc); + PrintAndLog(" {ar_0}: %08x",ar0_enc); + PrintAndLog(" {nr_1}: %08x",nr1_enc); + PrintAndLog(" {ar_1}: %08x",ar1_enc); + PrintAndLog("\nLFSR succesors of the tag challenge:"); + PrintAndLog(" nt': %08x", p64); + PrintAndLog(" nt'': %08x", prng_successor(p64, 32)); } s = lfsr_recovery32(ar0_enc ^ p64, 0); @@ -215,7 +226,7 @@ bool tryMfk32(nonces_t data, uint64_t *outputkey, bool verbose) { } isSuccess = (counter > 0); t1 = clock() - t1; - if ( t1 > 0 ) PrintAndLog("Time in mfkey32: %.0f ticks - possible keys %d\n", (float)t1, counter); + if ( t1 > 0 ) PrintAndLog("Time in mfkey32: %.0f ticks - possible keys %d", (float)t1, counter); *outputkey = ( isSuccess ) ? outkey : 0; crypto1_destroy(s); @@ -243,17 +254,17 @@ bool tryMfk32_moebius(nonces_t data, uint64_t *outputkey, bool verbose) { uint32_t p641 = prng_successor(nt1, 64); if (verbose) { - printf("Recovering key for:\n"); - printf(" uid: %08x\n", uid); - printf(" nt_0: %08x\n", nt0); - printf(" {nr_0}: %08x\n", nr0_enc); - printf(" {ar_0}: %08x\n", ar0_enc); - printf(" nt_1: %08x\n", nt1); - printf(" {nr_1}: %08x\n", nr1_enc); - printf(" {ar_1}: %08x\n", ar1_enc); - printf("\nLFSR succesors of the tag challenge:\n"); - printf(" nt': %08x\n", p640); - printf(" nt'': %08x\n", prng_successor(p640, 32)); + PrintAndLog("Recovering key for:"); + PrintAndLog(" uid: %08x", uid); + PrintAndLog(" nt_0: %08x", nt0); + PrintAndLog(" {nr_0}: %08x", nr0_enc); + PrintAndLog(" {ar_0}: %08x", ar0_enc); + PrintAndLog(" nt_1: %08x", nt1); + PrintAndLog(" {nr_1}: %08x", nr1_enc); + PrintAndLog(" {ar_1}: %08x", ar1_enc); + PrintAndLog("\nLFSR succesors of the tag challenge:"); + PrintAndLog(" nt': %08x", p640); + PrintAndLog(" nt'': %08x", prng_successor(p640, 32)); } s = lfsr_recovery32(ar0_enc ^ p640, 0); @@ -274,8 +285,9 @@ bool tryMfk32_moebius(nonces_t data, uint64_t *outputkey, bool verbose) { } isSuccess = (counter > 0); t1 = clock() - t1; - if ( t1 > 0 ) PrintAndLog("Time in mfkey32_moebius: %.0f ticks - possible keys %d\n", (float)t1, counter); - + if (verbose) { + if ( t1 > 0 ) PrintAndLog("Time in mfkey32_moebius: %.0f ticks - possible keys %d", (float)t1, counter); + } *outputkey = ( isSuccess ) ? outkey : 0; crypto1_destroy(s); return isSuccess; @@ -309,9 +321,9 @@ int tryMfk64(uint32_t uid, uint32_t nt, uint32_t nr_enc, uint32_t ar_enc, uint32 lfsr_rollback_word(revstate, uid ^ nt, 0); crypto1_get_lfsr(revstate, &key); - PrintAndLog("Found Key: [%012"llx"]", key); + PrintAndLog("Found Key: [%012" PRIx64 "]", key); t1 = clock() - t1; - if ( t1 > 0 ) PrintAndLog("Time in mfkey64: %.0f ticks \n", (float)t1); + if ( t1 > 0 ) PrintAndLog("Time in mfkey64: %.0f ticks", (float)t1); *outputkey = key; crypto1_destroy(revstate);