encrypt.h

#ifndef UDP2RAW_ENCRYPTION_H_
#define UDP2RAW_ENCRYPTION_H_

//#include "aes.h"
//#include "md5.h"
#include "common.h"

// using namespace std;
// extern char key[16];

const int aes_key_optimize = 1;  // if enabled,once you used a key for aes,you cant change it anymore
extern int aes128cfb_old;

int my_init_keys(const char *, int);

int my_encrypt(const char *data, char *output, int &len);
int my_decrypt(const char *data, char *output, int &len);

unsigned short csum(const unsigned short *ptr, int nbytes);

enum auth_mode_t { auth_none = 0,
                   auth_md5,
                   auth_crc32,
                   auth_simple,
                   auth_hmac_sha1,
                   auth_end };

enum cipher_mode_t { cipher_none = 0,
                     cipher_aes128cbc,
                     cipher_xor,
                     cipher_aes128cfb,
                     cipher_end };

extern auth_mode_t auth_mode;
extern cipher_mode_t cipher_mode;

extern unordered_map<int, const char *> auth_mode_tostring;
extern unordered_map<int, const char *> cipher_mode_tostring;

extern char gro_xor[256 + 100];

int cipher_decrypt(const char *data, char *output, int &len, char *key);  // internal interface ,exposed for test only
int cipher_encrypt(const char *data, char *output, int &len, char *key);  // internal interface ,exposed for test only

void aes_ecb_encrypt(const char *data, char *output);
void aes_ecb_decrypt(const char *data, char *output);

void aes_ecb_encrypt1(char *data);
void aes_ecb_decrypt1(char *data);

#endif