X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f66021cf4875fed1ae5b6767f61197d3896e224e..7779d73c71c248e05574b85f82df4e4f543d522e:/client/nonce2key/nonce2key.c diff --git a/client/nonce2key/nonce2key.c b/client/nonce2key/nonce2key.c deleted file mode 100644 index 47206380..00000000 --- a/client/nonce2key/nonce2key.c +++ /dev/null @@ -1,151 +0,0 @@ -//----------------------------------------------------------------------------- -// Merlok - June 2011 -// Roel - Dec 2009 -// Unknown author -// -// This code is licensed to you under the terms of the GNU GPL, version 2 or, -// at your option, any later version. See the LICENSE.txt file for the text of -// the license. -//----------------------------------------------------------------------------- -// MIFARE Darkside hack -//----------------------------------------------------------------------------- - -#define __STDC_FORMAT_MACROS -#include -#define llx PRIx64 - -#include "nonce2key.h" -#include "mifarehost.h" -#include "ui.h" - -int compar_state(const void * a, const void * b) { - // didn't work: (the result is truncated to 32 bits) - //return (*(int64_t*)b - *(int64_t*)a); - - // better: - if (*(int64_t*)b == *(int64_t*)a) return 0; - else if (*(int64_t*)b > *(int64_t*)a) return 1; - else return -1; -} - -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, nr_diff, key_count;//, ks1, ks2; - byte_t bt, ks3x[8], par[8][8]; - uint64_t key_recovered; - int64_t *state_s; - static uint32_t last_uid; - static int64_t *last_keylist; - rr = 0; - - if (last_uid != uid) - { - free(last_keylist); - last_keylist = NULL; - } - last_uid = uid; - - // Reset the last three significant bits of the reader nonce - nr &= 0xffffff1f; - - PrintAndLog("\nuid(%08x) nt(%08x) par(%016"llx") ks(%016"llx")\n\n",uid,nt,par_info,ks_info); - - for (pos=0; pos<8; pos++) - { - ks3x[7-pos] = (ks_info >> (pos*8)) & 0x0f; - bt = (par_info >> (pos*8)) & 0xff; - for (i=0; i<8; i++) - { - par[7-pos][i] = (bt >> i) & 0x01; - } - } - - printf("|diff|{nr} |ks3|ks3^5|parity |\n"); - printf("+----+--------+---+-----+---------------+\n"); - 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); - for (pos=0; pos<7; pos++) printf("%01x,", par[i][pos]); - printf("%01x|\n", par[i][7]); - } - - if (par_info==0) - PrintAndLog("parity is all zero,try special attack!just wait for few more seconds..."); - - state = lfsr_common_prefix(nr, rr, ks3x, par, par_info==0); - state_s = (int64_t*)state; - - //char filename[50] ; - //sprintf(filename, "nt_%08x_%d.txt", nt, nr); - //printf("name %s\n", filename); - //FILE* fp = fopen(filename,"w"); - for (i = 0; (state) && ((state + i)->odd != -1); i++) - { - lfsr_rollback_word(state+i, uid^nt, 0); - crypto1_get_lfsr(state + i, &key_recovered); - *(state_s + i) = key_recovered; - //fprintf(fp, "%012llx\n",key_recovered); - } - //fclose(fp); - - if(!state) - return 1; - - qsort(state_s, i, sizeof(*state_s), compar_state); - *(state_s + i) = -1; - - //Create the intersection: - if (par_info == 0 ) - if ( last_keylist != NULL) - { - int64_t *p1, *p2, *p3; - p1 = p3 = last_keylist; - p2 = state_s; - while ( *p1 != -1 && *p2 != -1 ) { - if (compar_state(p1, p2) == 0) { - printf("p1:%ld p2:%ld p3:%ld key:%012"llx"\n",p1-last_keylist, p2-state_s, p3-last_keylist,*p1); - *p3++ = *p1++; - p2++; - } - else { - while (compar_state(p1, p2) == -1) ++p1; - while (compar_state(p1, p2) == 1) ++p2; - } - } - key_count = p3 - last_keylist;; - } - else - key_count = 0; - else - { - last_keylist = state_s; - key_count = i; - } - - printf("key_count:%d\n", key_count); - - // The list may still contain several key candidates. Test each of them with mfCheckKeys - for (i = 0; i < key_count; i++) { - uint8_t keyBlock[6]; - uint64_t key64; - key64 = *(last_keylist + i); - num_to_bytes(key64, 6, keyBlock); - key64 = 0; - if (!mfCheckKeys(0, 0, 1, keyBlock, &key64)) { - *key = key64; - free(last_keylist); - last_keylist = NULL; - if (par_info ==0) - free(state); - return 0; - } - } - - - free(last_keylist); - last_keylist = state_s; - - return 1; -}