X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ae6ead3dc84acd074be24c0da5efd94ea7a0b225..2d2f7d1948f655b32031fc06f83d530c0c30c85b:/client/scripting.c?ds=sidebyside diff --git a/client/scripting.c b/client/scripting.c index 0ccdeeec..7ac78394 100644 --- a/client/scripting.c +++ b/client/scripting.c @@ -19,6 +19,8 @@ #include "nonce2key/nonce2key.h" #include "../common/iso15693tools.h" #include "../common/crc16.h" +#include "../common/crc64.h" +#include "../common/sha1.h" #include "aes.h" /** * The following params expected: @@ -152,7 +154,7 @@ 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); @@ -179,10 +181,10 @@ 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]; @@ -230,7 +232,7 @@ 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; @@ -239,31 +241,107 @@ 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 } @@ -272,12 +350,44 @@ 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; } +static int l_crc64(lua_State *L) +{ + size_t size; + uint64_t crc = 0; + 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; + outdata[1] = (uint8_t)(crc >> 48) & 0xff; + outdata[2] = (uint8_t)(crc >> 40) & 0xff; + outdata[3] = (uint8_t)(crc >> 32) & 0xff; + outdata[4] = (uint8_t)(crc >> 24) & 0xff; + outdata[5] = (uint8_t)(crc >> 16) & 0xff; + outdata[6] = (uint8_t)(crc >> 8) & 0xff; + outdata[7] = crc & 0xff; + lua_pushlstring(L,(const char *)&outdata, sizeof(outdata)); + 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; +} + /** * @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. @@ -298,7 +408,8 @@ 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! } @@ -313,10 +424,15 @@ 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}, + {"sha1", l_sha1}, {NULL, NULL} };