X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/86724c17c9914f495e2a7df729d4fe65a9746d82..43534cbad22da2db2e1b59f9e08f0cadfe0d8d54:/client/scripting.c diff --git a/client/scripting.c b/client/scripting.c index 152fd9d4..df8d73bc 100644 --- a/client/scripting.c +++ b/client/scripting.c @@ -18,9 +18,12 @@ #include "util.h" #include "nonce2key/nonce2key.h" #include "../common/iso15693tools.h" +#include "iso14443crc.h" #include "../common/crc16.h" #include "../common/crc64.h" +#include "../common/sha1.h" #include "aes.h" +#include "cmdcrc.h" /** * The following params expected: * UsbCommand c @@ -158,7 +161,7 @@ static int l_nonce2key(lua_State *L){ uint8_t dest_key[8]; num_to_bytes(key,sizeof(dest_key),dest_key); - //printf("Pushing to lua stack: %012"llx"\n",key); + //printf("Pushing to lua stack: %012" PRIx64 "\n",key); lua_pushlstring(L,(const char *) dest_key,sizeof(dest_key)); return 2; //Two return values @@ -227,11 +230,32 @@ static int l_iso15693_crc(lua_State *L) return 1; } +static int l_iso14443b_crc(lua_State *L) +{ + /* void ComputeCrc14443(int CrcType, + const unsigned char *Data, int Length, + unsigned char *TransmitFirst, + unsigned char *TransmitSecond) + */ + unsigned char buf[USB_CMD_DATA_SIZE]; + size_t len = 0; + const char *data = luaL_checklstring(L, 1, &len); + if (USB_CMD_DATA_SIZE < len) + len = USB_CMD_DATA_SIZE-2; + + for (int i = 0; i < len; i += 2) { + sscanf(&data[i], "%02x", (unsigned int *)&buf[i / 2]); + } + ComputeCrc14443(CRC_14443_B, buf, len, &buf[len], &buf[len+1]); + + lua_pushlstring(L, (const char *)&buf, len+2); + return 1; +} /* Simple AES 128 cbc hook up to OpenSSL. params: key, input */ -static int l_aes128decrypt(lua_State *L) +static int l_aes128decrypt_cbc(lua_State *L) { //Check number of arguments int i; @@ -260,7 +284,36 @@ static int l_aes128decrypt(lua_State *L) lua_pushlstring(L,(const char *)&outdata, sizeof(outdata)); return 1;// return 1 to signal one return value } -static int l_aes128encrypt(lua_State *L) +static int l_aes128decrypt_ecb(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[16] = {0x00}; + unsigned char outdata[16] = {0x00}; + unsigned char aes_key[16] = {0x00}; + + // convert key to bytearray and convert input to bytearray + for (i = 0; i < 32; i += 2) { + sscanf(&p_encTxt[i], "%02x", (unsigned int *)&indata[i / 2]); + sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]); + } + aes_context ctx; + aes_init(&ctx); + aes_setkey_dec(&ctx, aes_key, 128); + aes_crypt_ecb(&ctx, AES_DECRYPT, indata, outdata ); + + //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_aes128encrypt_cbc(lua_State *L) { //Check number of arguments int i; @@ -289,6 +342,33 @@ static int l_aes128encrypt(lua_State *L) return 1;// return 1 to signal one return value } +static int l_aes128encrypt_ecb(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_txt = luaL_checklstring(L, 2, &size); + + unsigned char indata[16] = {0x00}; + unsigned char outdata[16] = {0x00}; + unsigned char aes_key[16] = {0x00}; + + for (i = 0; i < 32; i += 2) { + sscanf(&p_txt[i], "%02x", (unsigned int *)&indata[i / 2]); + sscanf(&p_key[i], "%02x", (unsigned int *)&aes_key[i / 2]); + } + aes_context ctx; + aes_init(&ctx); + aes_setkey_enc(&ctx, aes_key, 128); + aes_crypt_ecb(&ctx, AES_ENCRYPT, indata, outdata ); + //Push encrypted 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; @@ -321,6 +401,72 @@ static int l_crc64(lua_State *L) return 1; } +static int l_sha1(lua_State *L) +{ + size_t size; + const char *p_str = luaL_checklstring(L, 1, &size); + unsigned char outdata[20] = {0x00}; + sha1( (uint8_t*) p_str, size, outdata); + lua_pushlstring(L,(const char *)&outdata, sizeof(outdata)); + return 1; +} + +static int l_reveng_models(lua_State *L){ + + char *models[80]; + int count = 0; + int in_width = luaL_checkinteger(L, 1); + + if( in_width > 89 ) return returnToLuaWithError(L,"Width cannot exceed 89, got %d", in_width); + + uint8_t width[80]; + width[0] = (uint8_t)in_width; + int ans = GetModels(models, &count, width); + if (!ans) return 0; + + lua_newtable(L); + + for (int i = 0; i < count; i++){ + lua_pushstring(L, (const char*)models[i]); + lua_rawseti(L,-2,i+1); + free(models[i]); + } + + return 1; +} + +//Called with 4 parameters. +// inModel ,string containing the crc model name: 'CRC-8' +// inHexStr ,string containing the hex representation of the data that will be used for CRC calculations. +// reverse ,int 0/1 (bool) if 1, calculate the reverse CRC +// endian ,char, 'B','b','L','l','t','r' describing if Big-Endian or Little-Endian should be used in different combinations. +// +// outputs: string with hex representation of the CRC result +static int l_reveng_RunModel(lua_State *L){ + //-c || -v + //inModel = valid model name string - CRC-8 + //inHexStr = input hex string to calculate crc on + //reverse = reverse calc option if true + //endian = {0 = calc default endian input and output, b = big endian input and output, B = big endian output, r = right justified + // l = little endian input and output, L = little endian output only, t = left justified} + //result = calculated crc hex string + char result[50]; + + const char *inModel = luaL_checkstring(L, 1); + const char *inHexStr = luaL_checkstring(L, 2); + bool reverse = lua_toboolean(L, 3); + const char endian = luaL_checkstring(L, 4)[0]; + + //PrintAndLog("mod: %s, hex: %s, rev %d", inModel, inHexStr, reverse); + //int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *result) + int ans = RunModel( (char *)inModel, (char *)inHexStr, reverse, endian, result); + if (!ans) + return returnToLuaWithError(L,"Reveng failed"); + + lua_pushstring(L, (const char*)result); + 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. @@ -359,10 +505,16 @@ int set_pm3_libraries(lua_State *L) {"clearCommandBuffer", l_clearCommandBuffer}, {"console", l_CmdConsole}, {"iso15693_crc", l_iso15693_crc}, - {"aes128_decrypt", l_aes128decrypt}, - {"aes128_encrypt", l_aes128encrypt}, + {"iso14443b_crc", l_iso14443b_crc}, + {"aes128_decrypt", l_aes128decrypt_cbc}, + {"aes128_decrypt_ecb", l_aes128decrypt_ecb}, + {"aes128_encrypt", l_aes128encrypt_cbc}, + {"aes128_encrypt_ecb", l_aes128encrypt_ecb}, {"crc16", l_crc16}, {"crc64", l_crc64}, + {"sha1", l_sha1}, + {"reveng_models", l_reveng_models}, + {"reveng_runmodel", l_reveng_RunModel}, {NULL, NULL} };