File size: 685 Bytes
6af5421 686266c 387663b 686266c 6af5421 686266c 4b07098 686266c 6af5421 686266c 6af5421 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #include "ice.h"
#include <string.h> // memcpy
#ifdef _WIN32
#define ICE_API __declspec(dllexport)
#else
#define ICE_API
#endif
extern "C" ICE_API void decrypt_inplace(unsigned char *text, size_t length) {
auto key = (const unsigned char
*)"\x51\xF3\x0F\x11\x04\x24\x6A\x00"; // this is the game's
// encryption key.
auto ice = ice_key_create(0);
ice_key_set(ice, key);
// decrypt in 8-byte blocks
unsigned char buffer[8];
for (size_t i = 0; (i + 8) <= length; i += 8) {
ice_key_decrypt(ice, (unsigned char *)text + i, buffer);
memcpy(text + i, buffer, 8);
}
ice_key_destroy(ice);
}
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