using system;
using system.security.cryptography;
using system.io;
using system.text;
namespace netbesttone.baseclass
string _querystringkey = "abcdefgh"; //url傳輸引數加密key
string _passwordkey = "hgfedcba";//password加密key
#region 公共方法
///
/// 加密url傳輸的字串
///
///
///
public string encryptquerystring(string querystring)
///
/// 解密url傳輸的字串
///
///
///
public string decryptquerystring(string querystring)
///
/// 加密帳號口令
///
///
///
private string encryptpassword(string password)
///
/// 解密帳號口令
///
///
///
private string decryptpassword(string password)
#endregion
#region 加密過程
///
/// dec 加密過程
///
///
///
///
private string encrypt(string ptoencrypt, string skey)
des.key = asciiencoding.ascii.getbytes(skey);//建立加密物件的金鑰和偏移量，此值重要，不能修改
des.iv = asciiencoding.ascii.getbytes(skey);
memorystream ms = new memorystream();
cryptostream cs = new cryptostream(ms, des.createdecryptor(), cryptostreammode.write);
cs.write(inputbytearray, 0, inputbytearray.length);
cs.flushfinalblock();
stringbuilder ret = new stringbuilder();//建立stringbuilder物件，createdecrypt使用的是流物件，必須把解密後的文字變成流物件
return system.text.encoding.default.getstring(ms.toarray());
}#endregion
#region 匹配過程
///
/// 檢查己加密的字串是否與原文相同
///
///
///
///
///
private bool validatestring(string enstring, string fostring, int mode)
else
case 2:
if (decrypt(enstring, _passwordkey) == fostring.tostring())
else}}
#endregion}}
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usingsystem usingsystem.security.cryptography usingsystem.io usingsystem.text namespacenetbesttone.baseclass string querystringkey abcdefgh url傳輸引數加密k...