Crypto.hpp

//
// Created by xiong on 2022/6/9.
//
 
#ifndef EMX_Crypto_HPP
#define EMX_Crypto_HPP
 
#include "core/aes/aes.hpp"
#include <cstdint>
#include <cstring>
#include <string>
 
namespace Emx {
    class AES_CBC {
    public:
        AES_CBC() { memset(&m_ctx, 0, sizeof(m_ctx)); }
 
        void Init(const uint8_t *key, const uint8_t *iv);
 
        void Encrypt(uint8_t *buf, size_t length);
 
        void Decrypt(uint8_t *buf, size_t length);
 
    private:
        struct AES_ctx m_ctx;
    };
 
    class XXTEA {
    public:
        static const uint32_t m_teaKey[4];
        static const uint32_t m_delta;
 
        static void Encrypt(uint32_t *v, int n, const uint32_t key[4] = m_teaKey, uint32_t delta = m_delta);
 
        static void Decrypt(uint32_t *v, int n, const uint32_t key[4] = m_teaKey, uint32_t delta = m_delta);
    };
 
    class Pkcs7Padding {
    public:
        static void Pad(std::string &data);
 
        static int Pad(uint8_t *in, int inSize, uint8_t *out, int &outSize);
 
        static void UnPad(std::string &data);
 
        static int UnPad(uint8_t *data, int &size);
    };
 
    class AesKey {
    public:
        static void Encode(const uint8_t *key, const uint8_t *iv, std::string &base64);
 
        static void Decode(const std::string &base64, uint8_t *key, uint8_t *iv);
    };
}
 
#endif //EMX_Crypto_HPP