84 lines
2.3 KiB
C#
84 lines
2.3 KiB
C#
using System;
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using System.Security.Cryptography;
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using System.Text;
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namespace Alipay.AopSdk.Core.Util
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{
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internal class AlipayEncrypt
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{
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/// <summary>
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/// 128位0向量
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/// </summary>
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private static readonly byte[] AES_IV = initIv(16);
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/// <summary>
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/// AES 加密
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/// </summary>
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/// <param name="encryptKey"></param>
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/// <param name="bizContent"></param>
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/// <param name="charset"></param>
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/// <returns></returns>
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public static string AesEncrypt(string encryptKey, string bizContent, string charset)
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{
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var keyArray = Convert.FromBase64String(encryptKey);
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byte[] toEncryptArray = null;
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if (string.IsNullOrEmpty(charset))
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toEncryptArray = Encoding.UTF8.GetBytes(bizContent);
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else
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toEncryptArray = Encoding.GetEncoding(charset).GetBytes(bizContent);
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var rDel = new RijndaelManaged();
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rDel.Key = keyArray;
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rDel.Mode = CipherMode.CBC;
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rDel.Padding = PaddingMode.PKCS7;
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rDel.IV = AES_IV;
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var cTransform = rDel.CreateEncryptor(rDel.Key, rDel.IV);
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var resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
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return Convert.ToBase64String(resultArray);
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}
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/// <summary>
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/// AES解密
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/// </summary>
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/// <param name="encryptKey"></param>
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/// <param name="bizContent"></param>
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/// <param name="charset"></param>
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/// <returns></returns>
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public static string AesDencrypt(string encryptKey, string bizContent, string charset)
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{
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var keyArray = Convert.FromBase64String(encryptKey);
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var toEncryptArray = Convert.FromBase64String(bizContent);
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var rDel = new RijndaelManaged();
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rDel.Key = keyArray;
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rDel.Mode = CipherMode.CBC;
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rDel.Padding = PaddingMode.PKCS7;
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rDel.IV = AES_IV;
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var cTransform = rDel.CreateDecryptor(rDel.Key, rDel.IV);
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var resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
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if (string.IsNullOrEmpty(charset))
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return Encoding.UTF8.GetString(resultArray);
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return Encoding.GetEncoding(charset).GetString(resultArray);
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}
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/// <summary>
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/// 初始化向量
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/// </summary>
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/// <param name="blockSize"></param>
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/// <returns></returns>
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private static byte[] initIv(int blockSize)
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{
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var iv = new byte[blockSize];
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for (var i = 0; i < blockSize; i++)
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iv[i] = 0x0;
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return iv;
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}
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}
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} |