testdes.cpp

只需设定密钥字符串和要加密的字符串

#include <windows.h>
#include <stdio.h>
extern "C" int des64(unsigned char *source /*in*/,unsigned char *dest/*out*/,unsigned char *inkey/*in*/, int flg/*1-Encrypt 0-decrypt*/);
extern "C" int Encrypt(unsigned char *source /*in*/,int nLen,unsigned char *dest/*out*/,unsigned char *inkey);
extern "C" int Decrypt(unsigned char *source /*in*/,int nLen,unsigned char *dest/*out*/,unsigned char *inkey);
void main()
{
	int i,iLen=0;
	BYTE szKey[9]="hdfjksdj";
	BYTE szInBuf[80]="1234567890abcdefghijklmnopqrstuvwxyz";
	BYTE szTempBuf[80],szOutBuf[80];

	printf("加密数据是：%s\n",szInBuf);
	iLen=Encrypt(szInBuf,lstrlen((LPCSTR)szInBuf),szTempBuf,szKey);
	printf("加密后的数据是：");
	for (i=0;i<iLen;i++) printf(" %02x",szTempBuf[i]);
	printf("\n");
	Decrypt(szTempBuf,iLen,szOutBuf,szKey);
	printf("解密后的数据是：%s\n",(LPCSTR)szOutBuf);

}