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FIX: a solution for the issue "hf mf esave - always saves 4K"

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FIX: a solution for the issue "hf eload, esave, cload, save - filepath variable too short"
CHG: minor code clean up.
ADD: AES / CRC16 for lua. (and tnp3xx scripts.)
ADD: tnp3dump.lua  script to dump tnp3xx tags.
ADD: tnp3sim.lua script to let PM3 imitate an tnp3xx tag. Needs to be tested live
This commit is contained in:
iceman1001 2015-01-07 22:00:29 +01:00
parent d91a31f935
commit b915fda392
19 changed files with 1137 additions and 133 deletions
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52
client/scripting.c
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@ -18,6 +18,8 @@
#include "util.h"
#include "nonce2key/nonce2key.h"
#include "../common/iso15693tools.h"
#include <openssl/aes.h>
#include "../common/crc16.h"
/**
* The following params expected:
* UsbCommand c
@ -224,6 +226,54 @@ static int l_iso15693_crc(lua_State *L)
return 1;
}
/*
Simple AES 128 cbc hook up to OpenSSL.
params: key, input
*/
static int l_aes(lua_State *L)
{
//Check number of arguments
int i;
size_t size;
const char *p_key = luaL_checklstring(L, 1, &size);
if(size != 32) return returnToLuaWithError(L,"Wrong size of key, got %d bytes, expected 32", (int) size);
const char *p_encTxt = luaL_checklstring(L, 2, &size);
unsigned char indata[AES_BLOCK_SIZE] = {0x00};
unsigned char outdata[AES_BLOCK_SIZE] = {0x00};
unsigned char aes_key[AES_BLOCK_SIZE] = {0x00};
unsigned char iv[AES_BLOCK_SIZE] = {0x00};
// convert key to bytearray
for (i = 0; i < 32; i += 2) {
sscanf(&p_encTxt[i], "%02x", (unsigned int *)&indata[i / 2]);
}
// convert input to bytearray
for (i = 0; i < 32; i += 2) {
sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]);
}
AES_KEY key;
AES_set_decrypt_key(aes_key, 128, &key);
AES_cbc_encrypt(indata, outdata, sizeof(indata), &key, iv, AES_DECRYPT);
//Push decrypted array as a string
lua_pushlstring(L,(const char *)&outdata, sizeof(outdata));
return 1;// return 1 to signal one return value
}
static int l_crc16(lua_State *L)
{
size_t size;
const char *p_str = luaL_checklstring(L, 1, &size);
uint16_t retval = crc16_ccitt( (uint8_t*) p_str, size);
lua_pushinteger(L, (int) retval);
return 1;
}
/**
* @brief Sets the lua path to include "./lualibs/?.lua", in order for a script to be
* able to do "require('foobar')" if foobar.lua is within lualibs folder.
@ -261,6 +311,8 @@ int set_pm3_libraries(lua_State *L)
{"clearCommandBuffer", l_clearCommandBuffer},
{"console", l_CmdConsole},
{"iso15693_crc", l_iso15693_crc},
{"aes", l_aes},
{"crc16", l_crc16},
{NULL, NULL}
};