来源1 来源2
1 {
2 //密码
3 string keys = "1234567890123456";//类似密钥吧要满足16位
4 string text = "Prozkb";
5 //加密初始化向量
6 Console.WriteLine("明文:" + text);
7 string message = AesEncrypt(text, keys);
8
9 Console.WriteLine("加密结果"+message);
10 string Jiemi = AesDecrypt(message, keys);
11
12 Console.WriteLine("解密结果" + Jiemi);
13
14 Console.ReadKey();
15
16 //string text = "要加密的数据"; //明文
17 //string keys = "1234567891234567";//密钥,要满足16位
18 //byte[] bytes = Encoding.ASCII.GetBytes(keys);
19 //byte[] encryptBytes = AESEncrypt(text, keys);
20 ////将加密后的密文转换为Base64编码，以便显示，可以查看下结果
21 //Console.WriteLine("明文:" + text);
22 //Console.WriteLine("密文:" + Convert.ToBase64String(encryptBytes));
23 ////解密
24 //byte[] decryptBytes = AESDecrypt(encryptBytes, keys);
25 ////将解密后的结果转换为字符串,也可以将该步骤封装在解密算法中
26 //string result = Encoding.UTF8.GetString(decryptBytes);
27 //Console.WriteLine("解密结果：" + result);
28 //Console.Read();
29
30 }
1 /// <summary>
2 /// AES加密
3 /// </summary>
4 /// <param name="text">加密字符</param>
5 /// <param name="password">加密的密码</param>
6 /// <param name="iv">密钥</param>
7 /// <returns></returns>
8 public static string AESENcrypt(string text, string password)
9 {
10 RijndaelManaged rijndaelCipher = new RijndaelManaged();
11 rijndaelCipher.Mode = CipherMode.CBC;
12 rijndaelCipher.Padding = PaddingMode.PKCS7;
13 rijndaelCipher.KeySize = 128;
14 rijndaelCipher.BlockSize = 128;
15 byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);
16 byte[] keyBytes = new byte[16];
17 int len = pwdBytes.Length;
18 if (len > keyBytes.Length) len = keyBytes.Length;
19 System.Array.Copy(pwdBytes, keyBytes, len);
20 rijndaelCipher.Key = keyBytes;
21 rijndaelCipher.IV = new byte[16];
22 ICryptoTransform transform = rijndaelCipher.CreateEncryptor();
23 byte[] plainText = Encoding.UTF8.GetBytes(text);
24 byte[] cipherBytes = transform.TransformFinalBlock(plainText, 0, plainText.Length);
25 return Convert.ToBase64String(cipherBytes);
26 }
27
28
29 /// <summary>
30 /// AES解密
31 /// </summary>
32 /// <param name="text"></param>
33 /// <param name="password"></param>
34 /// <param name="iv"></param>
35 /// <returns></returns>
36 public static string AESDecrypt(string text, string password)
37 {
38 RijndaelManaged rijndaelCipher = new RijndaelManaged();
39 rijndaelCipher.Mode = CipherMode.CBC;
40 rijndaelCipher.Padding = PaddingMode.PKCS7;
41 rijndaelCipher.KeySize = 128;
42 rijndaelCipher.BlockSize = 128;
43 byte[] encryptedData = Convert.FromBase64String(text);
44 byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);
45 byte[] keyBytes = new byte[16];
46 int len = pwdBytes.Length;
47 if (len > keyBytes.Length) len = keyBytes.Length;
48 System.Array.Copy(pwdBytes, keyBytes, len);
49 rijndaelCipher.Key = keyBytes;
50 rijndaelCipher.IV = new byte[16];
51 ICryptoTransform transform = rijndaelCipher.CreateDecryptor();
52 byte[] plainText = transform.TransformFinalBlock(encryptedData, 0, encryptedData.Length);
53 return Encoding.UTF8.GetString(plainText);
54 }
55
56
57
58 //加密
59 public static string AesEncrypt(string str, string key)
60 {
61 if (string.IsNullOrEmpty(str)) return null;
62 Byte[] toEncryptArray = Encoding.UTF8.GetBytes(str);
63
64 System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
65 {
66 Key = Encoding.UTF8.GetBytes(key),
67 Mode = System.Security.Cryptography.CipherMode.ECB,
68 Padding = System.Security.Cryptography.PaddingMode.PKCS7
69 };
70
71 System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateEncryptor();
72 Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
73
74 return Convert.ToBase64String(resultArray, 0, resultArray.Length);
75 }
76 /// <summary>
77 /// AES 解密
78 /// </summary>
79 /// <param name="str">明文（待解密）</param>
80 /// <param name="key">密文</param>
81 /// <returns></returns>
82 public static string AesDecrypt(string str, string key)
83 {
84 if (string.IsNullOrEmpty(str)) return null;
85 Byte[] toEncryptArray = Convert.FromBase64String(str);
86
87 System.Security.Cryptography.RijndaelManaged rm = new System.Security.Cryptography.RijndaelManaged
88 {
89 Key = Encoding.UTF8.GetBytes(key),
90 Mode = System.Security.Cryptography.CipherMode.ECB,
91 Padding = System.Security.Cryptography.PaddingMode.PKCS7
92 };
93
94 System.Security.Cryptography.ICryptoTransform cTransform = rm.CreateDecryptor();
95 Byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
96
97 return Encoding.UTF8.GetString(resultArray);
98 }
private static byte[] _key1 = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
/// <summary>
/// AES加密算法
/// </summary>
/// <param name="plainText">明文字符串</param>
/// <param name="strKey">密钥</param>
/// <returns>返回加密后的密文字节数组</returns>
public static byte[] AESEncrypt(string plainText, string strKey)
{
//分组加密算法
SymmetricAlgorithm des = Rijndael.Create();
byte[] inputByteArray = Encoding.UTF8.GetBytes(plainText);//得到需要加密的字节数组
//设置密钥及密钥向量
des.Key = Encoding.UTF8.GetBytes(strKey);
des.IV = _key1;
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
byte[] cipherBytes = ms.ToArray();//得到加密后的字节数组
cs.Close();
ms.Close();
return cipherBytes;
}
/// <summary>
/// AES解密
/// </summary>
/// <param name="cipherText">密文字节数组</param>
/// <param name="strKey">密钥</param>
/// <returns>返回解密后的字符串</returns>
public static byte[] AESDecrypt(byte[] cipherText, string strKey)
{
SymmetricAlgorithm des = Rijndael.Create();
des.Key = Encoding.UTF8.GetBytes(strKey);
des.IV = _key1;
byte[] decryptBytes = new byte[cipherText.Length];
MemoryStream ms = new MemoryStream(cipherText);
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Read);
cs.Read(decryptBytes, 0, decryptBytes.Length);
cs.Close();
ms.Close();
return decryptBytes;
}