unity数据加密

来源：互联网发布：常见的排序算法编辑：程序博客网时间：2024/06/01 09:45
在unity中可以使用c#自带的对称算法对数据进行加密，下面两种加密算法：
01usingSystem;
02usingSystem.Text;
03usingSystem.Security.Cryptography;
04usingSystem.IO;
05 
06usingUnityEngine;
07 
08publicclass StringEncryption{
09     
10    #region  方法一 C#中对字符串加密解密（对称算法）
11    privatestatic byte[] Keys = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
12    /// <summary>
13    /// DES加密字符串
14    /// </summary>
15    /// <param name="encryptString">待加密的字符串</param>
16    /// <param name="encryptKey">加密密钥,要求为8位</param>
17    /// <returns>加密成功返回加密后的字符串，失败返回源串</returns>
18    publicstatic string EncryptDES(stringencryptString, stringencryptKey)
19    {
20        try
21        {
22            byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
23            byte[] rgbIV = Keys;
24            byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
25            DESCryptoServiceProvider dCSP = newDESCryptoServiceProvider();
26            MemoryStream mStream = newMemoryStream();
27            CryptoStream cStream = newCryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
28            cStream.Write(inputByteArray, 0, inputByteArray.Length);
29            cStream.FlushFinalBlock();
30            cStream.Close();
31            returnConvert.ToBase64String(mStream.ToArray());
32        }
33        catch
34        {
35            returnencryptString;
36        }
37    }
38     
39    /// <summary>
40    /// DES解密字符串
41    /// </summary>
42    /// <param name="decryptString">待解密的字符串</param>
43    /// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param>
44    /// <returns>解密成功返回解密后的字符串，失败返源串</returns>
45    publicstatic string DecryptDES(stringdecryptString, stringdecryptKey)
46    {
47        try
48        {
49            byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey);
50            byte[] rgbIV = Keys;
51            byte[] inputByteArray = Convert.FromBase64String(decryptString);
52            DESCryptoServiceProvider DCSP = newDESCryptoServiceProvider();
53            MemoryStream mStream = newMemoryStream();
54            CryptoStream cStream = newCryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
55            cStream.Write(inputByteArray, 0, inputByteArray.Length);
56            cStream.FlushFinalBlock();
57            cStream.Close();
58            returnEncoding.UTF8.GetString(mStream.ToArray());
59        }
60        catch
61        {
62            Debug.Log("catch");
63            returndecryptString;
64        }
65    }
66    #endregion
67     
68     
69     
70     
71     
72     
73    #region MD5不可逆加密
74    //32位加密
75    publicstring GetMD5_32(strings, string_input_charset) 
76    {
77        MD5 md5 = newMD5CryptoServiceProvider(); 
78        byte[] t = md5.ComputeHash(Encoding.GetEncoding(_input_charset).GetBytes(s)); 
79        StringBuilder sb = newStringBuilder(32); 
80        for(inti = 0; i < t.Length; i++) 
81        {
82            sb.Append(t[i].ToString("x").PadLeft(2,'0'));
83        }
84        returnsb.ToString(); 
85    }
86 
87    //16位加密
88    publicstatic string GetMd5_16(stringConvertString) 
89    {
90        MD5CryptoServiceProvider md5 = newMD5CryptoServiceProvider(); 
91        stringt2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8);
92        t2 = t2.Replace("-","");
93        returnt2; 
94    }
95    #endregion
96}
经测试都是可以用的，第一种加密需要一个自定义的key，解密需要key来解密。
第二种是常见的MD5加密算法，不可逆的，可用来存储用户密码等信息。
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