分享一个加密类和一个解密类

加密类

 1     internal class CryptInfo
 2     {
 3         /// <summary>
 4         /// 私有构造方法禁止实例化该类型
 5         /// </summary>
 6         public CryptInfo() { }
 7 
 8         /// <summary>
 9         /// 对输入的字符串进行加密，并获取加密后的字符串，调用这个方法
10         /// </summary>
11         /// <param name="text">输入的字符串</param>
12         /// <returns></returns>
13         public string GetEncrypt(string text)
14         {
15             return this.Encrypt(text);
16         }
17 
18         /// <summary>
19         /// 加密 对用户名和密码进行加密的方法
20         /// </summary>
21         /// <param name="text"></param>
22         /// <returns></returns>
23         private string Encrypt(string text)
24         {
25             Rijndael crypt = Rijndael.Create();
26             byte[] key = new byte[32] { 0XA6, 0X7D, 0XE1, 0X3F, 0X35, 0X0E, 0XE1, 0XA9, 0X83, 0XA5, 0X62, 0XAA, 0X7A, 0XAE, 0X79, 0X98, 0XA7, 0X33, 0X49, 0XFF, 0XE6, 0XAE, 0XBF, 0X8D, 0X8D, 0X20, 0X8A, 0X49, 0X31, 0X3A, 0X12, 0X40 };
27 
28             byte[] iv = new byte[16] { 0XF8, 0X8B, 0X01, 0XFB, 0X08, 0X85, 0X9A, 0XA4, 0XBE, 0X45, 0X28, 0X56, 0X03, 0X42, 0XF6, 0X19 };
29             crypt.Key = key;
30             crypt.IV = iv;
31 
32             MemoryStream ms = new MemoryStream();
33 
34             ICryptoTransform transtormEncode = new ToBase64Transform();
35             //Base64编码
36             CryptoStream csEncode = new CryptoStream(ms, transtormEncode, CryptoStreamMode.Write);
37 
38             CryptoStream csEncrypt = new CryptoStream(csEncode, crypt.CreateEncryptor(), CryptoStreamMode.Write);
39 
40             System.Text.UTF8Encoding enc = new System.Text.UTF8Encoding();
41             byte[] rawData = enc.GetBytes(text);
42 
43             csEncrypt.Write(rawData, 0, rawData.Length);
44             csEncrypt.FlushFinalBlock();
45 
46             byte[] encryptedData = new byte[ms.Length];
47             ms.Position = 0;
48             ms.Read(encryptedData, 0, (int)ms.Length);
49 
50             return enc.GetString(encryptedData);
51         }
52 
53     }

解密类：

    internal class DecryptInfo
    {
        /// <summary>
        /// 私有化构造函数不允许外部实例化
        /// </summary>
        public DecryptInfo()
        { }


        /// <summary>
        /// 对输入的字符串进行加密,并获取解密后的字符串，调用这个方法
        /// </summary>
        /// <param name="text">输入的字符串</param>
        /// <returns></returns>
        public string GetDecrypte(string text)
        {
            return this.Decrypt(text);
        }

        /// <summary>
        /// 解密方法 对用户名和密码进行解密
        /// </summary>
        /// <param name="text"></param>
        /// <returns></returns>
        private string Decrypt(string text)
        {
            Rijndael crypt = Rijndael.Create();
            byte[] key = new byte[32] { 0XA6, 0X7D, 0XE1, 0X3F, 0X35, 0X0E, 0XE1, 0XA9, 0X83, 0XA5, 0X62, 0XAA, 0X7A, 0XAE, 0X79, 0X98, 0XA7, 0X33, 0X49, 0XFF, 0XE6, 0XAE, 0XBF, 0X8D, 0X8D, 0X20, 0X8A, 0X49, 0X31, 0X3A, 0X12, 0X40 };
            byte[] iv = new byte[16] { 0XF8, 0X8B, 0X01, 0XFB, 0X08, 0X85, 0X9A, 0XA4, 0XBE, 0X45, 0X28, 0X56, 0X03, 0X42, 0XF6, 0X19 };
            crypt.Key = key;
            crypt.IV = iv;

            MemoryStream ms = new MemoryStream();
            CryptoStream csDecrypt = new CryptoStream(ms, crypt.CreateDecryptor(), CryptoStreamMode.Write);
            ICryptoTransform transformDecode = new FromBase64Transform();
            CryptoStream csDecode = new CryptoStream(csDecrypt, transformDecode, CryptoStreamMode.Write);

            System.Text.UTF8Encoding enc = new System.Text.UTF8Encoding();
            byte[] rawData = enc.GetBytes(text);
            csDecode.Write(rawData, 0, rawData.Length);
            csDecode.FlushFinalBlock();

            byte[] decryptedData = new byte[ms.Length];
            ms.Position = 0;
            ms.Read(decryptedData, 0, (int)ms.Length);

            return (enc.GetString(decryptedData));
        }
    }

 把其中的UserInfo类换成T，这样就把加密类和解密类变成泛型类，更通用。

posted @ 2018-01-26 14:40  liu_xh  阅读(160)  评论(0)  编辑  收藏  举报