1+ using System . Security . Cryptography ;
2+ using System . Text ;
3+
4+ namespace GameFrameX . Utility ;
5+
6+ /// <summary>
7+ /// 加密解密相关的实用函数。
8+ /// </summary>
9+ public static partial class Encryption
10+ {
11+ public static class Aes
12+ {
13+ #region 加密
14+
15+ #region 加密字符串
16+
17+ /// <summary>
18+ /// AES 加密(高级加密标准，是下一代的加密算法标准，速度快，安全级别高，目前 AES 标准的一个实现是 Rijndael 算法)
19+ /// </summary>
20+ /// <param name="EncryptString">待加密密文</param>
21+ /// <param name="EncryptKey">加密密钥</param>
22+ public static string AESEncrypt ( string EncryptString , string EncryptKey )
23+ {
24+ return Convert . ToBase64String ( AESEncrypt ( Encoding . UTF8 . GetBytes ( EncryptString ) , EncryptKey ) ) ;
25+ }
26+
27+ #endregion
28+
29+ #region 加密字节数组
30+
31+ /// <summary>
32+ /// AES 加密(高级加密标准，是下一代的加密算法标准，速度快，安全级别高，目前 AES 标准的一个实现是 Rijndael 算法)
33+ /// </summary>
34+ /// <param name="EncryptString">待加密密文</param>
35+ /// <param name="EncryptKey">加密密钥</param>
36+ public static byte [ ] AESEncrypt ( byte [ ] EncryptByte , string EncryptKey )
37+ {
38+ if ( EncryptByte . Length == 0 )
39+ {
40+ throw ( new Exception ( "明文不得为空" ) ) ;
41+ }
42+
43+ if ( string . IsNullOrEmpty ( EncryptKey ) )
44+ {
45+ throw ( new Exception ( "密钥不得为空" ) ) ;
46+ }
47+
48+ byte [ ] m_strEncrypt ;
49+ byte [ ] m_btIV = new byte [ 16 ] { 224 , 131 , 122 , 101 , 37 , 254 , 33 , 17 , 19 , 28 , 212 , 130 , 45 , 65 , 43 , 32 } ;
50+ byte [ ] m_salt = new byte [ 16 ] { 234 , 231 , 123 , 100 , 87 , 254 , 123 , 17 , 89 , 18 , 230 , 13 , 45 , 65 , 43 , 32 } ;
51+ Rijndael m_AESProvider = Rijndael . Create ( ) ;
52+ try
53+ {
54+ MemoryStream m_stream = new MemoryStream ( ) ;
55+ PasswordDeriveBytes pdb = new PasswordDeriveBytes ( EncryptKey , m_salt ) ;
56+ ICryptoTransform transform = m_AESProvider . CreateEncryptor ( pdb . GetBytes ( 32 ) , m_btIV ) ;
57+ CryptoStream m_csstream = new CryptoStream ( m_stream , transform , CryptoStreamMode . Write ) ;
58+ m_csstream . Write ( EncryptByte , 0 , EncryptByte . Length ) ;
59+ m_csstream . FlushFinalBlock ( ) ;
60+ m_strEncrypt = m_stream . ToArray ( ) ;
61+ m_stream . Close ( ) ;
62+ m_stream . Dispose ( ) ;
63+ m_csstream . Close ( ) ;
64+ m_csstream . Dispose ( ) ;
65+ }
66+ catch ( IOException ex )
67+ {
68+ throw ex ;
69+ }
70+ catch ( CryptographicException ex )
71+ {
72+ throw ex ;
73+ }
74+ catch ( ArgumentException ex )
75+ {
76+ throw ex ;
77+ }
78+ catch ( Exception ex )
79+ {
80+ throw ex ;
81+ }
82+ finally
83+ {
84+ m_AESProvider . Clear ( ) ;
85+ }
86+
87+ return m_strEncrypt ;
88+ }
89+
90+ #endregion
91+
92+ #endregion
93+
94+ #region 解密
95+
96+ #region 解密字符串
97+
98+ /// <summary>
99+ /// AES 解密(高级加密标准，是下一代的加密算法标准，速度快，安全级别高，目前 AES 标准的一个实现是 Rijndael 算法)
100+ /// </summary>
101+ /// <param name="DecryptString">待解密密文</param>
102+ /// <param name="DecryptKey">解密密钥</param>
103+ public static string AESDecrypt ( string DecryptString , string DecryptKey )
104+ {
105+ return Encoding . UTF8 . GetString ( ( AESDecrypt ( Convert . FromBase64String ( DecryptString ) , DecryptKey ) ) ) ;
106+ }
107+
108+ #endregion
109+
110+ #region 解密字节数组
111+
112+ /// <summary>
113+ /// AES 解密(高级加密标准，是下一代的加密算法标准，速度快，安全级别高，目前 AES 标准的一个实现是 Rijndael 算法)
114+ /// </summary>
115+ /// <param name="DecryptString">待解密密文</param>
116+ /// <param name="DecryptKey">解密密钥</param>
117+ public static byte [ ] AESDecrypt ( byte [ ] DecryptByte , string DecryptKey )
118+ {
119+ if ( DecryptByte . Length == 0 )
120+ {
121+ throw ( new Exception ( "密文不得为空" ) ) ;
122+ }
123+
124+ if ( string . IsNullOrEmpty ( DecryptKey ) )
125+ {
126+ throw ( new Exception ( "密钥不得为空" ) ) ;
127+ }
128+
129+ byte [ ] m_strDecrypt ;
130+ byte [ ] m_btIV = new byte [ 16 ] { 224 , 131 , 122 , 101 , 37 , 254 , 33 , 17 , 19 , 28 , 212 , 130 , 45 , 65 , 43 , 32 } ;
131+ byte [ ] m_salt = new byte [ 16 ] { 234 , 231 , 123 , 100 , 87 , 254 , 123 , 17 , 89 , 18 , 230 , 13 , 45 , 65 , 43 , 32 } ;
132+ Rijndael m_AESProvider = Rijndael . Create ( ) ;
133+ try
134+ {
135+ MemoryStream m_stream = new MemoryStream ( ) ;
136+ PasswordDeriveBytes pdb = new PasswordDeriveBytes ( DecryptKey , m_salt ) ;
137+ ICryptoTransform transform = m_AESProvider . CreateDecryptor ( pdb . GetBytes ( 32 ) , m_btIV ) ;
138+ CryptoStream m_csstream = new CryptoStream ( m_stream , transform , CryptoStreamMode . Write ) ;
139+ m_csstream . Write ( DecryptByte , 0 , DecryptByte . Length ) ;
140+ m_csstream . FlushFinalBlock ( ) ;
141+ m_strDecrypt = m_stream . ToArray ( ) ;
142+ m_stream . Close ( ) ;
143+ m_stream . Dispose ( ) ;
144+ m_csstream . Close ( ) ;
145+ m_csstream . Dispose ( ) ;
146+ }
147+ catch ( IOException ex )
148+ {
149+ throw ex ;
150+ }
151+ catch ( CryptographicException ex )
152+ {
153+ throw ex ;
154+ }
155+ catch ( ArgumentException ex )
156+ {
157+ throw ex ;
158+ }
159+ catch ( Exception ex )
160+ {
161+ throw ex ;
162+ }
163+ finally
164+ {
165+ m_AESProvider . Clear ( ) ;
166+ }
167+
168+ return m_strDecrypt ;
169+ }
170+
171+ #endregion
172+
173+ #endregion
174+ }
175+ }
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