crypto.h

RSA C++源代码DEMO,附加DESMD5等众多算法

/*
 * Crypto functions and utilities
 *
 *  writen by alfred meng
 */
#ifndef __CRYPTO_H
#define __CRYPTO_H

// OP defination
#define  DES_E     1
#define  DES_D     0

// ALG defination
#define  SINGLE_DES      0x01
#define  TRIPLE_DES      0x02

#ifdef __cplusplus
extern "C" {
#endif
//---------------------------- DES, 3DES, PBOC
void  qdes(char *key,char *data,char *out,int op);
void  tripledes(char *key,char *data,char *out, int op);
void  cbc_crypt(char *key,char *data,char *out, int op); // single block
void  gmac(char alg, char *key, char *formateddata, short dl,char *mac, char *icv );
void  diversify(char *MxK, char *factor, char *Dxk);
int   PBOC_Encrypt(char alg, char *key, char *data, int len, char *res);
void  PBOC_Decrypt(char alg, char *key,char *data, int len, char *res );
void  DES3_CBC_ENC(char *key, char *data, short datalen,char *Result);
void  DES3_ECB_ENC(char *key, char *data, short datalen,char *Result);
//---------------------------- Utilities
int   padding(char *data, int datalen);
void  xorblock(char *ds1,char *d2);
void  notblock(char *ds);

//---------------------------- SHA1, MD5
void  SHA1 ( unsigned char *pt, short pt_len, unsigned char *digest );
void  MD5  ( unsigned char *pt, short pt_len, unsigned char *digest );

//---------------------------- RC2
void  RC4(char *key,short kl, char *dataIN_OUT,short dl );

//---------------------------- RSA
void rsa_keygen(int bits, char *pN_ASCII, char *pE_ASCII, char *pD_ASCII);
void rsa_encrypt( char *pN_ASCII, char *pE_ASCII, char *pData_ASCII, char *pOUT_ASCII );
void rsa_decrypt( char *pN_ASCII, char *pD_ASCII, char *pData_ASCII, char *pOUT_ASCII );
void rsa_sign( char *pN_ASCII, char *pD_ASCII, char *hash, short hash_len, char *pSign_ASCII);

#ifdef __cplusplus
}
#endif

#endif