#include "cmdmain.h"
#include "scripting.h"
#include "util.h"
+#include "nonce2key/nonce2key.h"
+#include "../common/iso15693tools.h"
+#include <openssl/aes.h>
/**
* The following params expected:
* UsbCommand c
return 1;// one return value
}
}
-//static int l_nonce2key(lua_State *L){ return CmdHF14AMfRdSc(luaL_checkstring(L, 1));}
+
+static int returnToLuaWithError(lua_State *L, const char* fmt, ...)
+{
+ char buffer[200];
+ va_list args;
+ va_start(args,fmt);
+ vsnprintf(buffer, sizeof(buffer), fmt,args);
+ va_end(args);
+
+ lua_pushnil(L);
+ lua_pushstring(L,buffer);
+ return 2;
+}
+
+static int l_nonce2key(lua_State *L){
+
+ size_t size;
+ const char *p_uid = luaL_checklstring(L, 1, &size);
+ if(size != 4) return returnToLuaWithError(L,"Wrong size of uid, got %d bytes, expected 4", (int) size);
+
+ const char *p_nt = luaL_checklstring(L, 2, &size);
+ if(size != 4) return returnToLuaWithError(L,"Wrong size of nt, got %d bytes, expected 4", (int) size);
+
+ const char *p_nr = luaL_checklstring(L, 3, &size);
+ if(size != 4) return returnToLuaWithError(L,"Wrong size of nr, got %d bytes, expected 4", (int) size);
+
+ const char *p_par_info = luaL_checklstring(L, 4, &size);
+ if(size != 8) return returnToLuaWithError(L,"Wrong size of par_info, got %d bytes, expected 8", (int) size);
+
+ const char *p_pks_info = luaL_checklstring(L, 5, &size);
+ if(size != 8) return returnToLuaWithError(L,"Wrong size of ks_info, got %d bytes, expected 8", (int) size);
+
+
+ uint32_t uid = bytes_to_num(( uint8_t *)p_uid,4);
+ uint32_t nt = bytes_to_num(( uint8_t *)p_nt,4);
+
+ uint32_t nr = bytes_to_num(( uint8_t*)p_nr,4);
+ uint64_t par_info = bytes_to_num(( uint8_t *)p_par_info,8);
+ uint64_t ks_info = bytes_to_num(( uint8_t *)p_pks_info,8);
+
+ uint64_t key = 0;
+
+ int retval = nonce2key(uid,nt, nr, par_info,ks_info, &key);
+
+ //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);
+
+ //printf("Pushing to lua stack: %012"llx"\n",key);
+ lua_pushlstring(L,(const char *) dest_key,sizeof(dest_key));
+
+ return 2; //Two return values
+}
//static int l_PrintAndLog(lua_State *L){ return CmdHF14AMfDump(luaL_checkstring(L, 1));}
static int l_clearCommandBuffer(lua_State *L){
clearCommandBuffer();
printf("foobar called with %d arguments" , n);
lua_settop(L, 0);
printf("Arguments discarded, stack now contains %d elements", lua_gettop(L));
- UsbCommand response = {CMD_MIFARE_READBL, {1337, 1338, 1339}};
- printf("Now returning a UsbCommand as a string");
- lua_pushlstring(L,(const char *)&response,sizeof(UsbCommand));
- return 1;
+
+ // 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];
+ num_to_bytes(x,sizeof(x),destination);
+ lua_pushlstring(L,(const char *)&x,sizeof(x));
+ lua_pushlstring(L,(const char *)destination,sizeof(destination));
+
+ return 2;
}
+
/**
* @brief Utility to check if a key has been pressed by the user. This method does not block.
* @param L
return 0;
}
+static int l_iso15693_crc(lua_State *L)
+{
+ // uint16_t Iso15693Crc(uint8_t *v, int n);
+ size_t size;
+ const char *v = luaL_checklstring(L, 1, &size);
+ uint16_t retval = Iso15693Crc((uint8_t *) v, size);
+ lua_pushinteger(L, (int) retval);
+ 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
+}
/**
* @brief Sets the lua path to include "./lualibs/?.lua", in order for a script to be
static const luaL_Reg libs[] = {
{"SendCommand", l_SendCommand},
{"WaitForResponseTimeout", l_WaitForResponseTimeout},
- //{"nonce2key", l_nonce2key},
+ {"nonce2key", l_nonce2key},
//{"PrintAndLog", l_PrintAndLog},
{"foobar", l_foobar},
{"ukbhit", l_ukbhit},
{"clearCommandBuffer", l_clearCommandBuffer},
- {"console", l_CmdConsole},
+ {"console", l_CmdConsole},
+ {"iso15693_crc", l_iso15693_crc},
+ {"aes", l_aes},
{NULL, NULL}
};
projects / proxmark3-svn / blobdiff