/*****************************************************************************
- * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * WARNING
+ *
+ * THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY.
+ *
+ * USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL
+ * PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL,
+ * AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES.
+ *
+ * THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS.
+ *
+ *****************************************************************************
+ *
+ * This file is part of loclass. It is a reconstructon of the cipher engine
* used in iClass, and RFID techology.
*
* The implementation is based on the work performed by
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
+ * by the Free Software Foundation, or, at your option, any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
+ * along with loclass. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
****************************************************************************/
-#include "cipherutils.h"
-#include "../util.h"
#include <stdint.h>
#include <stdio.h>
#include <string.h>
-
+#include "fileutils.h"
+#include "cipherutils.h"
/**
*
* @brief Return and remove the first bit (x0) in the stream : <x0 x1 x2 x3 ... xn >
return stream->numbits;
}
+void x_num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
+{
+ while (len--) {
+ dest[len] = (uint8_t) n;
+ n >>= 8;
+ }
+}
+
+uint64_t x_bytes_to_num(uint8_t* src, size_t len)
+{
+ uint64_t num = 0;
+ while (len--)
+ {
+ num = (num << 8) | (*src);
+ src++;
+ }
+ return num;
+}
uint8_t reversebytes(uint8_t b) {
b = (b & 0xF0) >> 4 | (b & 0x0F) << 4;
b = (b & 0xCC) >> 2 | (b & 0x33) << 2;
arr[i] = reversebytes(arr[i]);
}
}
+void reverse_arraycopy(uint8_t* arr, uint8_t* dest, size_t len)
+{
+ uint8_t i;
+ for( i =0; i< len ; i++)
+ {
+ dest[i] = reversebytes(arr[i]);
+ }
+}
+void printarr(char * name, uint8_t* arr, int len)
+{
+ int cx;
+ size_t outsize = 40+strlen(name)+len*5;
+ char* output = malloc(outsize);
+ memset(output, 0,outsize);
+
+ int i ;
+ cx = snprintf(output,outsize, "uint8_t %s[] = {", name);
+ for(i =0 ; i< len ; i++)
+ {
+ cx += snprintf(output+cx,outsize-cx,"0x%02x,",*(arr+i));//5 bytes per byte
+ }
+ cx += snprintf(output+cx,outsize-cx,"};");
+ prnlog(output);
+ free(output);
+}
+
+void printvar(char * name, uint8_t* arr, int len)
+{
+ int cx;
+ size_t outsize = 40+strlen(name)+len*2;
+ char* output = malloc(outsize);
+ memset(output, 0,outsize);
+
+ int i ;
+ cx = snprintf(output,outsize,"%s = ", name);
+ for(i =0 ; i< len ; i++)
+ {
+ cx += snprintf(output+cx,outsize-cx,"%02x",*(arr+i));//2 bytes per byte
+ }
+
+ prnlog(output);
+ free(output);
+}
+
+void printarr_human_readable(char * title, uint8_t* arr, int len)
+{
+ int cx;
+ size_t outsize = 100+strlen(title)+len*4;
+ char* output = malloc(outsize);
+ memset(output, 0,outsize);
+
+
+ int i;
+ cx = snprintf(output,outsize, "\n\t%s\n", title);
+ for(i =0 ; i< len ; i++)
+ {
+ if(i % 16 == 0)
+ cx += snprintf(output+cx,outsize-cx,"\n%02x| ", i );
+ cx += snprintf(output+cx,outsize-cx, "%02x ",*(arr+i));
+ }
+ prnlog(output);
+ free(output);
+}
//-----------------------------
// Code for testing below
//-----------------------------
-
+#ifndef ON_DEVICE
int testBitStream()
{
uint8_t input [] = {0xDE,0xAD,0xBE,0xEF,0xDE,0xAD,0xBE,0xEF};
}
if(memcmp(input, output, sizeof(input)) == 0)
{
- printf("Bitstream test 1 ok\n");
+ prnlog(" Bitstream test 1 ok");
}else
{
- printf("Bitstream test 1 failed\n");
+ prnlog(" Bitstream test 1 failed");
uint8_t i;
for(i = 0 ; i < sizeof(input) ; i++)
{
- printf("IN %02x, OUT %02x\n", input[i], output[i]);
+ prnlog(" IN %02x, OUT %02x", input[i], output[i]);
}
return 1;
}
}
if(memcmp(input, output, sizeof(input)) == 0)
{
- printf("Bitstream test 2 ok\n");
+ prnlog(" Bitstream test 2 ok");
}else
{
- printf("Bitstream test 2 failed\n");
+ prnlog(" Bitstream test 2 failed");
uint8_t i;
for(i = 0 ; i < sizeof(input) ; i++)
{
- printf("IN %02x, MIDDLE: %02x, OUT %02x\n", input[i],reverse[i], output[i]);
+ prnlog(" IN %02x, MIDDLE: %02x, OUT %02x", input[i],reverse[i], output[i]);
}
return 1;
}
int testCipherUtils(void)
{
+ prnlog("[+] Testing some internals...");
int retval = 0;
retval |= testBitStream();
retval |= testReversedBitstream();
return retval;
}
+#endif
projects / proxmark3-svn / blobdiff