github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-14 10:37:23 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

FIX: the time_t calls under mingw needs a #define _USE_32BIT_TIME_T 1 to be correct. It seems to work in "hf mf mifare" but not in "hf mf hardnested"

Browse source
This commit is contained in:
iceman1001 2016-10-29 21:42:46 +02:00
commit b403c30091
9 changed files with 88 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

45
client/cmdanalyse.c
View file

@ -8,6 +8,7 @@
// Analyse bytes commands
//-----------------------------------------------------------------------------
#include "cmdanalyse.h"
#include "nonce2key/nonce2key.h"
static int CmdHelp(const char *Cmd);
@ -124,6 +125,29 @@ static uint8_t calcSumNibbleSubOnes( uint8_t* bytes, uint8_t len, uint32_t mask)
return ~calcSumNibbleSub(bytes, len, mask);
}
// measuring LFSR maximum length
int CmdAnalyseLfsr(const char *Cmd){
uint16_t start_state = 0; /* Any nonzero start state will work. */
uint16_t lfsr = start_state;
//uint32_t period = 0;
uint8_t iv = param_get8ex(Cmd, 0, 0, 16);
uint8_t find = param_get8ex(Cmd, 1, 0, 16);
printf("LEGIC LFSR IV 0x%02X: \n", iv);
printf(" bit# | lfsr | ^0x40 | 0x%02X ^ lfsr \n",find);
for (uint8_t i = 0x01; i < 0x30; i += 1) {
//period = 0;
legic_prng_init(iv);
legic_prng_forward(i);
lfsr = legic_prng_get_bits(12);
printf(" %02X | %03X | %03X | %03X \n",i, lfsr, 0x40 ^ lfsr, find ^ lfsr);
}
return 0;
}
int CmdAnalyseLCR(const char *Cmd) {
uint8_t data[50];
char cmdp = param_getchar(Cmd, 0);
@ -284,6 +308,25 @@ int CmdAnalyseTEASelfTest(const char *Cmd){
return 0;
}
int CmdAnalyseA(const char *Cmd){
// uid(2e086b1a) nt(230736f6) par(0000000000000000) ks(0b0008000804000e) nr(000000000)
// uid(2e086b1a) nt(230736f6) par(0000000000000000) ks(0e0b0e0b090c0d02) nr(000000001)
// uid(2e086b1a) nt(230736f6) par(0000000000000000) ks(0e05060e01080b08) nr(000000002)
uint32_t uid = 0x2e086b1a, nt = 0x230736f6, nr = 0x000000001;
uint64_t ks_list = 0x0e0b0e0b090c0d02, r_key = 0;
nonce2key_ex(0, 0 , uid, nt, nr, ks_list, &r_key);
nr = 0x000000002;
ks_list = 0x0e05060e01080b08;
nonce2key_ex(0, 0 , uid, nt, nr, ks_list, &r_key);
printf("Found valid key: %012"llx" \n", r_key);
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
{"lcr", CmdAnalyseLCR, 1, "Generate final byte for XOR LRC"},
@ -291,6 +334,8 @@ static command_t CommandTable[] = {
{"chksum", CmdAnalyseCHKSUM, 1, "Checksum with adding, masking and one's complement"},
{"dates", CmdAnalyseDates, 1, "Look for datestamps in a given array of bytes"},
{"tea", CmdAnalyseTEASelfTest, 1, "Crypto TEA test"},
{"lfsr", CmdAnalyseLfsr, 1, "LFSR tests"},
{"a", CmdAnalyseA, 1, "num bits test"},
{NULL, NULL, 0, NULL}
};