ASP.NET AES/DES加密、解密函数代码,Asp.Net代码库,德仔网

代码语言
代码分类
【Asp.Net】 ASP.NET AES/DES加密、解密函数
作者:Dezai.CN / 发布于2011/7/8/ 687
using System.Web.Security;using System.Security.Cryptography;
<div><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> AES解密函数
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"></summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="pToDencrypt"></span><span style="color: rgb(0,128,0)">要解密的字符串</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="skey"></span><span style="color: rgb(0,128,0)">私钥(最高32字节,对应256位AES)</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><returns></span><span style="color: rgb(0,128,0)">解密后的结果</span><span style="color: rgb(128,128,128)"></returns></span><span style="color: rgb(128,128,128)">
</span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> AESDecrypt(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> pToDencrypt, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> skey)
{
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] keyArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> UTF8Encoding.UTF8.GetBytes(skey);
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] toEncryptArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Convert.FromBase64String(pToDencrypt);

 RijndaelManaged rDel </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> RijndaelManaged();
 rDel.Key </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> keyArray;
 rDel.Mode </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> CipherMode.ECB;
 rDel.Padding </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> PaddingMode.PKCS7;

 ICryptoTransform cTransform </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> rDel.CreateDecryptor();
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] resultArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> cTransform.TransformFinalBlock(toEncryptArray, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, toEncryptArray.Length);

 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> UTF8Encoding.UTF8.GetString(resultArray);
}

</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> AES加密函数
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"></summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="pToEncrypt"></span><span style="color: rgb(0,128,0)">要加密的字符串</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="skey"></span><span style="color: rgb(0,128,0)">私钥(最高32字节,对应256位AES)</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><returns></span><span style="color: rgb(0,128,0)">加密结果</span><span style="color: rgb(128,128,128)"></returns></span><span style="color: rgb(128,128,128)">
</span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> AESEncrypt(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> pToEncrypt, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> skey)
{
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] keyArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> UTF8Encoding.UTF8.GetBytes(skey);
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] toEncryptArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> UTF8Encoding.UTF8.GetBytes(pToEncrypt);

 RijndaelManaged rDel </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> RijndaelManaged();
 rDel.Key </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> keyArray;
 rDel.Mode </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> CipherMode.ECB;
 rDel.Padding </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> PaddingMode.PKCS7;

 ICryptoTransform cTransform </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> rDel.CreateEncryptor();
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] resultArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> cTransform.TransformFinalBlock(toEncryptArray, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, toEncryptArray.Length);

 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> Convert.ToBase64String(resultArray, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, resultArray.Length);
}

</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> 进行DES解密。
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"></summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="pToDecrypt"></span><span style="color: rgb(0,128,0)">要解密的字符串</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="sKey"></span><span style="color: rgb(0,128,0)">8位密钥</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><returns></span><span style="color: rgb(0,128,0)">已解密的字符串。</span><span style="color: rgb(128,128,128)"></returns></span><span style="color: rgb(128,128,128)">
</span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> DESDecrypt(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> pToDecrypt, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> sKey)
{
 DESCryptoServiceProvider des </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> DESCryptoServiceProvider();
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">把字符串放入byte数组 </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> len </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;
 len </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> pToDecrypt.Length </span><span style="color: rgb(0,0,0)">/</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,0)">-</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] inputByteArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[len </span><span style="color: rgb(0,0,0)">+</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">1</span><span style="color: rgb(0,0,0)">];
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> x </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">for</span><span style="color: rgb(0,0,0)"> (x </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">; x </span><span style="color: rgb(0,0,0)"><=</span><span style="color: rgb(0,0,0)"> len; x</span><span style="color: rgb(0,0,0)">++</span><span style="color: rgb(0,0,0)">)
 {
 i </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Convert.ToInt32(pToDecrypt.Substring(x </span><span style="color: rgb(0,0,0)">*</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">2</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,128)">2</span><span style="color: rgb(0,0,0)">), </span><span style="color: rgb(128,0,128)">16</span><span style="color: rgb(0,0,0)">);
 inputByteArray[x] </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Convert.ToByte(i);
 }
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">建立加密对象的密钥和偏移量，此值重要，不能修改 </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> des.Key </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ASCIIEncoding.ASCII.GetBytes(sKey);
 des.IV </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ASCIIEncoding.ASCII.GetBytes(sKey);
 System.IO.MemoryStream ms </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> System.IO.MemoryStream();
 CryptoStream cs </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
 cs.Write(inputByteArray, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, inputByteArray.Length);
 cs.FlushFinalBlock();
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> Encoding.Default.GetString(ms.ToArray());
}

</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> DES加密函数
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"></summary></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="pToEncrypt"></span><span style="color: rgb(0,128,0)">要加密的字符串</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><param name="sKey"></span><span style="color: rgb(0,128,0)">8位密钥</span><span style="color: rgb(128,128,128)"></param></span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(128,128,128)">///</span><span style="color: rgb(0,128,0)"> </span><span style="color: rgb(128,128,128)"><returns></span><span style="color: rgb(0,128,0)">加密后的字符串</span><span style="color: rgb(128,128,128)"></returns></span><span style="color: rgb(128,128,128)">
</span><span style="color: rgb(0,0,255)">public</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">static</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> DESEncrypt(</span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> pToEncrypt, </span><span style="color: rgb(0,0,255)">string</span><span style="color: rgb(0,0,0)"> sKey)
{
 DESCryptoServiceProvider des </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> DESCryptoServiceProvider();
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)">[] inputByteArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">null</span><span style="color: rgb(0,0,0)">;
 inputByteArray </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> Encoding.Default.GetBytes(pToEncrypt);
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">建立加密对象的密钥和偏移量 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">原文使用ASCIIEncoding.ASCII方法的GetBytes方法 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">使得输入密码必须输入英文文本 </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> des.Key </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ASCIIEncoding.ASCII.GetBytes(sKey);
 des.IV </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> ASCIIEncoding.ASCII.GetBytes(sKey);
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">写二进制数组到加密流 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">(把内存流中的内容全部写入) </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> System.IO.MemoryStream ms </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> System.IO.MemoryStream();
 CryptoStream cs </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">写二进制数组到加密流 
 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">(把内存流中的内容全部写入) </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> cs.Write(inputByteArray, </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">, inputByteArray.Length);
 cs.FlushFinalBlock();

 </span><span style="color: rgb(0,128,0)">//</span><span style="color: rgb(0,128,0)">建立输出字符串 </span><span style="color: rgb(0,128,0)">
</span><span style="color: rgb(0,0,0)"> StringBuilder ret </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">new</span><span style="color: rgb(0,0,0)"> StringBuilder();
 </span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)"> b </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,128)">0</span><span style="color: rgb(0,0,0)">;
 </span><span style="color: rgb(0,0,255)">foreach</span><span style="color: rgb(0,0,0)"> (</span><span style="color: rgb(0,0,255)">byte</span><span style="color: rgb(0,0,0)"> b_loopVariable </span><span style="color: rgb(0,0,255)">in</span><span style="color: rgb(0,0,0)"> ms.ToArray())
 {
 b </span><span style="color: rgb(0,0,0)">=</span><span style="color: rgb(0,0,0)"> b_loopVariable;
 ret.AppendFormat(</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">{0:X2}</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">, b);
 }
 </span><span style="color: rgb(0,0,255)">return</span><span style="color: rgb(0,0,0)"> ret.ToString();
}</span></div>
试试其它关键字
　DES　
同语言下
可能有用的
Dezai.CN贡献的其它代码(4037)