#pragma once

#include <string>
#include <vector>

namespace reginfo {
namespace crypto {

// RC4-based stream cipher using the given key.
std::vector<unsigned char> rc4Crypt(const std::vector<unsigned char>& data, const std::string& key);

// Base64 encode/decode.
std::string base64Encode(const std::vector<unsigned char>& data);
std::vector<unsigned char> base64Decode(const std::string& encoded);

// CRC32 checksum.
unsigned int crc32(const unsigned char* data, size_t len);

} // namespace crypto
} // namespace reginfo