t3.txt

DES加密程序

//把bool数组转换回十六进制数显示到屏幕上
CString CDESEncrptionDlg::BtoS(bool b[],int length)
{
	CString result="";
	int temp;
	int sum=0;
	unsigned char tempc;
	for(int i=0;i<length;i+=4)
	{
		sum=0;
		tempc=0;
		for(int j=0;j<4;j++)
		{
			temp=b[i+j];
			sum=sum*2+temp;
		}
		if(sum<10)
			tempc=sum+48;           //30-------39H
		else
			tempc=sum+48+7;
		result+=tempc;
		
	}
	return result;
}