CHG: moved some TEA crypto stuff from 14b into analyse.

This commit is contained in:
iceman1001 2016-08-07 21:08:17 +02:00
parent 5def0b3c74
commit 16658b1ff1
4 changed files with 47 additions and 51 deletions

View file

@ -249,6 +249,40 @@ int CmdAnalyseDates(const char *Cmd){
PrintAndLog("To be implemented. Feel free to contribute!");
return 0;
}
int CmdAnalyseTEASelfTest(const char *Cmd){
uint8_t v[8], v_le[8];
memset(v, 0x00, sizeof(v));
memset(v_le, 0x00, sizeof(v_le));
uint8_t* v_ptr = v_le;
uint8_t cmdlen = strlen(Cmd);
cmdlen = ( sizeof(v)<<2 < cmdlen ) ? sizeof(v)<<2 : cmdlen;
if ( param_gethex(Cmd, 0, v, cmdlen) > 0 ){
PrintAndLog("can't read hex chars, uneven? :: %u", cmdlen);
return 1;
}
SwapEndian64ex(v , 8, 4, v_ptr);
// ENCRYPTION KEY:
uint8_t key[16] = {0x55,0xFE,0xF6,0x30,0x62,0xBF,0x0B,0xC1,0xC9,0xB3,0x7C,0x34,0x97,0x3E,0x29,0xFB };
uint8_t keyle[16];
uint8_t* key_ptr = keyle;
SwapEndian64ex(key , sizeof(key), 4, key_ptr);
PrintAndLog("TEST LE enc| %s", sprint_hex(v_ptr, 8));
tea_decrypt(v_ptr, key_ptr);
PrintAndLog("TEST LE dec | %s", sprint_hex_ascii(v_ptr, 8));
tea_encrypt(v_ptr, key_ptr);
tea_encrypt(v_ptr, key_ptr);
PrintAndLog("TEST enc2 | %s", sprint_hex_ascii(v_ptr, 8));
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
@ -256,6 +290,7 @@ static command_t CommandTable[] = {
{"crc", CmdAnalyseCRC, 1, "Stub method for CRC evaluations"},
{"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"},
{NULL, NULL, 0, NULL}
};

View file

@ -19,6 +19,7 @@
#include "util.h"
#include "crc.h"
#include "../common/iso15693tools.h"
#include "tea.h"
int usage_analyse_lcr(void);
int usage_analyse_checksum(void);
@ -29,4 +30,5 @@ int CmdAnalyseLCR(const char *Cmd);
int CmdAnalyseCHKSUM(const char *Cmd);
int CmdAnalyseDates(const char *Cmd);
int CmdAnalyseCRC(const char *Cmd);
int CmdAnalyseTEASelfTest(const char *Cmd);
#endif

View file

@ -8,10 +8,6 @@
// High frequency ISO14443B commands
//-----------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include "cmdhf14b.h"
#define TIMEOUT 2000
@ -139,11 +135,8 @@ int CmdHF14BSnoop(const char *Cmd) {
}
int CmdHF14BCmdRaw (const char *Cmd) {
bool reply = TRUE;
bool power = FALSE;
bool select = FALSE;
bool reply = TRUE, power = FALSE, select = FALSE;
char buf[5]="";
int i = 0;
uint8_t data[USB_CMD_DATA_SIZE] = {0x00};
uint16_t datalen = 0;
@ -159,8 +152,8 @@ int CmdHF14BCmdRaw (const char *Cmd) {
if (Cmd[i]==' ' || Cmd[i]=='\t') { ++i; continue; }
if (Cmd[i]=='-') {
switch (Cmd[i+1]) {
case 'H':
case 'h':
case 'H':
return usage_hf_14b_raw();
case 'r':
case 'R':
@ -809,41 +802,6 @@ int srix4kValid(const char *Cmd){
return 0;
}
int CmdteaSelfTest(const char *Cmd){
uint8_t v[8], v_le[8];
memset(v, 0x00, sizeof(v));
memset(v_le, 0x00, sizeof(v_le));
uint8_t* v_ptr = v_le;
uint8_t cmdlen = strlen(Cmd);
cmdlen = ( sizeof(v)<<2 < cmdlen ) ? sizeof(v)<<2 : cmdlen;
if ( param_gethex(Cmd, 0, v, cmdlen) > 0 ){
PrintAndLog("can't read hex chars, uneven? :: %u", cmdlen);
return 1;
}
SwapEndian64ex(v , 8, 4, v_ptr);
// ENCRYPTION KEY:
uint8_t key[16] = {0x55,0xFE,0xF6,0x30,0x62,0xBF,0x0B,0xC1,0xC9,0xB3,0x7C,0x34,0x97,0x3E,0x29,0xFB };
uint8_t keyle[16];
uint8_t* key_ptr = keyle;
SwapEndian64ex(key , sizeof(key), 4, key_ptr);
PrintAndLog("TEST LE enc| %s", sprint_hex(v_ptr, 8));
tea_decrypt(v_ptr, key_ptr);
PrintAndLog("TEST LE dec | %s", sprint_hex_ascii(v_ptr, 8));
tea_encrypt(v_ptr, key_ptr);
tea_encrypt(v_ptr, key_ptr);
PrintAndLog("TEST enc2 | %s", sprint_hex_ascii(v_ptr, 8));
return 0;
}
bool waitCmd(bool verbose) {
bool crc = FALSE;
@ -896,7 +854,6 @@ static command_t CommandTable[] = {
{"sriread", CmdHF14BReadSri, 0, "Read contents of a SRI512 | SRIX4K tag"},
{"sriwrite", CmdHF14BWriteSri, 0, "Write data to a SRI512 | SRIX4K tag"},
//{"valid", srix4kValid, 1, "srix4k checksum test"},
//{"valid", CmdteaSelfTest, 1, "tea test"},
{NULL, NULL, 0, NULL}
};

View file

@ -11,6 +11,10 @@
#ifndef CMDHF14B_H__
#define CMDHF14B_H__
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include "iso14443crc.h"
#include "proxmark3.h"
#include "data.h"
@ -20,14 +24,12 @@
#include "cmdparser.h"
#include "cmdmain.h"
#include "cmdhf14a.h"
#include "tea.h"
#include "cmdhf.h"
#include "prng.h"
#include "sha1.h"
#include "mifare.h" // structs/enum for ISO14B
#include "protocols.h" // definitions of ISO14B protocol
int usage_hf_14b_info(void);
int usage_hf_14b_reader(void);
int usage_hf_14b_raw(void);