C# 128位AES 加密解密 （转）

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原文连接 ：https://blog.csdn.net/weixin_33859231/article/details/93815453

1. /// AES加密
   
2. /// </summary>
   
3. /// <param name="inputdata">输入的数据</param>
   
4. /// <param name="iv">向量128位</param>
   
5. /// <param name="strKey">加密密钥</param>
   
6. /// <returns></returns>
   
7. public static byte[] AESEncrypt(byte[] inputdata, byte[] iv, string strKey)
   
8. {
   
9. //分组加密算法
   
10. SymmetricAlgorithm des = Rijndael.Create();
    
11. byte[] inputByteArray = inputdata;//得到需要加密的字节数组
    
12. //设置密钥及密钥向量
    
13. des.Key = Encoding.UTF8.GetBytes(strKey.Substring(0, 32));
    
14. des.IV = iv;
    
15. using (MemoryStream ms = new MemoryStream())
    
16. {
    
17. using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
    
18. {
    
19. cs.Write(inputByteArray, 0, inputByteArray.Length);
    
20. cs.FlushFinalBlock();
    
21. byte[] cipherBytes = ms.ToArray();//得到加密后的字节数组
    
22. cs.Close();
    
23. ms.Close();
    
24. return cipherBytes;
    
25. }
    
26. }
    
27. }
    
28. 
    
29. 
    
30. /// <summary>
    
31. /// AES解密
    
32. /// </summary>
    
33. /// <param name="inputdata">输入的数据</param>
    
34. /// <param name="iv">向量128</param>
    
35. /// <param name="strKey">key</param>
    
36. /// <returns></returns>
    
37. public static byte[] AESDecrypt(byte[] inputdata, byte[] iv, string strKey)
    
38. {
    
39. SymmetricAlgorithm des = Rijndael.Create();
    
40. des.Key = Encoding.UTF8.GetBytes(strKey.Substring(0, 32));
    
41. des.IV = iv;
    
42. byte[] decryptBytes = new byte[inputdata.Length];
    
43. using (MemoryStream ms = new MemoryStream(inputdata))
    
44. {
    
45. using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Read))
    
46. {
    
47. cs.Read(decryptBytes, 0, decryptBytes.Length);
    
48. cs.Close();
    
49. ms.Close();
    
50. }
    
51. }
    
52. return decryptBytes;
    
53. }
    

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