EvpAES.h

// https://gitee.com/bailiyang/cdemo/tree/master/Qt/49OpenSSL/OpenSSL/Cipher
// DES加密算法中，ECB和CBC模式有什么区别 https://blog.51cto.com/u_15060462/4692785
 
#ifndef EVPAES_H
#define EVPAES_H
 
#include <QByteArray>
 
struct evp_cipher_ctx_st;
typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX;
 
struct evp_cipher_st;
typedef struct evp_cipher_st EVP_CIPHER;
 
class EvpAES
{
public:
    EvpAES();
    ~EvpAES();
 
    bool ecb_encrypt(const QByteArray& in, QByteArray& out,
                     const QByteArray &key, bool enc = true);
    bool cbc_encrypt(const QByteArray& in, QByteArray& out,
                     const QByteArray &key, const QByteArray& ivec,
                     bool enc = true);
    bool cfb1_encrypt(const QByteArray& in, QByteArray& out,
                      const QByteArray &key, const QByteArray& ivec,
                      bool enc = true);
    bool cfb8_encrypt(const QByteArray& in, QByteArray& out,
                      const QByteArray &key, const QByteArray& ivec,
                      bool enc = true);
    bool cfb128_encrypt(const QByteArray& in, QByteArray& out,
                        const QByteArray &key, const QByteArray& ivec,
                        bool enc = true);
    bool ofb128_encrypt(const QByteArray& in, QByteArray& out,
                        const QByteArray &key, const QByteArray& ivec,
                        bool enc = true);
    bool ctr_encrypt(const QByteArray& in, QByteArray& out,
                     const QByteArray &key, const QByteArray& ivec,
                     bool enc = true);
    bool gcm_encrypt(const QByteArray& in, QByteArray& out,
                     const QByteArray &key, const QByteArray& ivec,
                     bool enc = true);
    bool xts_encrypt(const QByteArray& in, QByteArray& out,
                     const QByteArray &key, const QByteArray& ivec,
                     bool enc = true);
    bool ocb_encrypt(const QByteArray& in, QByteArray& out,
                     const QByteArray &key, const QByteArray& ivec,
                     bool enc = true);
 
private:
    bool encrypt(const QByteArray& in, QByteArray& out,
                 const QByteArray& key, const QByteArray& ivec,
                 const EVP_CIPHER *cipher, bool enc = true);
    
    //TODO: only install the dependencies libraries(libssl)
    int testSSL();
 
private:
    EVP_CIPHER_CTX *ctx;
};
 
#endif // EVPAES_H