X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3ee8c808c44e417c197d12de9b2e2f3cfbdcde0c..99789601dcc6c6b347d857fb2d32c9d1ef52d43d:/client/scripting.c diff --git a/client/scripting.c b/client/scripting.c index 50283c87..75760663 100644 --- a/client/scripting.c +++ b/client/scripting.c @@ -20,7 +20,9 @@ #include "../common/iso15693tools.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 @@ -153,7 +155,7 @@ static int l_nonce2key(lua_State *L){ //Push the retval on the stack lua_pushinteger(L,retval); - + //Push the key onto the stack uint8_t dest_key[8]; num_to_bytes(key,sizeof(dest_key),dest_key); @@ -180,10 +182,10 @@ static int l_foobar(lua_State *L) printf("foobar called with %d arguments" , n); lua_settop(L, 0); printf("Arguments discarded, stack now contains %d elements", lua_gettop(L)); - + // todo: this is not used, where was it intended for? // UsbCommand response = {CMD_MIFARE_READBL, {1337, 1338, 1339}}; - + printf("Now returning a uint64_t as a string"); uint64_t x = 0xDEADBEEF; uint8_t destination[8]; @@ -231,7 +233,7 @@ static int l_iso15693_crc(lua_State *L) Simple AES 128 cbc hook up to OpenSSL. params: key, input */ -static int l_aes(lua_State *L) +static int l_aes128decrypt_cbc(lua_State *L) { //Check number of arguments int i; @@ -240,31 +242,107 @@ static int l_aes(lua_State *L) 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}; unsigned char iv[16] = {0x00}; - - // convert key to bytearray + + // 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]); } - - // convert input to bytearray + + aes_context ctx; + aes_init(&ctx); + aes_setkey_dec(&ctx, aes_key, 128); + aes_crypt_cbc(&ctx, AES_DECRYPT, sizeof(indata), iv, 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_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; + 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}; + unsigned char iv[16] = {0x00}; - //AES_KEY key; - //AES_set_decrypt_key(aes_key, 128, &key); - //AES_cbc_encrypt(indata, outdata, sizeof(indata), &key, iv, AES_DECRYPT); + 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,(const unsigned char *)p_key,128); - aes_crypt_cbc(&ctx,AES_DECRYPT,sizeof(indata), iv, indata,outdata ); - //Push decrypted array as a string + aes_setkey_enc(&ctx, aes_key, 128); + aes_crypt_cbc(&ctx, AES_ENCRYPT, sizeof(indata), iv, 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_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 } @@ -273,7 +351,7 @@ 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; @@ -286,7 +364,7 @@ static int l_crc64(lua_State *L) unsigned char outdata[8] = {0x00}; const char *p_str = luaL_checklstring(L, 1, &size); - + crc64( (uint8_t*) p_str, size, &crc); outdata[0] = (uint8_t)(crc >> 56) & 0xff; @@ -298,7 +376,73 @@ static int l_crc64(lua_State *L) outdata[6] = (uint8_t)(crc >> 8) & 0xff; outdata[7] = crc & 0xff; lua_pushlstring(L,(const char *)&outdata, sizeof(outdata)); - return 1; + 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; } /** @@ -321,7 +465,8 @@ int setLuaPath( lua_State* L, const char* path ) lua_pushstring( L, buf ); // push the new one lua_setfield( L, -2, "path" ); // set the field "path" in table at -2 with value at top of stack lua_pop( L, 1 ); // get rid of package table from top of stack - return 0; // all done! + free(buf); + return 0; // all done! } @@ -336,11 +481,17 @@ int set_pm3_libraries(lua_State *L) {"foobar", l_foobar}, {"ukbhit", l_ukbhit}, {"clearCommandBuffer", l_clearCommandBuffer}, - {"console", l_CmdConsole}, - {"iso15693_crc", l_iso15693_crc}, - {"aes", l_aes}, + {"console", l_CmdConsole}, + {"iso15693_crc", l_iso15693_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}, + {"crc64", l_crc64}, + {"sha1", l_sha1}, + {"reveng_models", l_reveng_models}, + {"reveng_runmodel", l_reveng_RunModel}, {NULL, NULL} };