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using Microsoft.Extensions.Logging;
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using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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using VOL.Core.Services;
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namespace VOL.Core.Utilities
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{
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public class SecurityEncDecrypt
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{
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#region
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private static byte[] Keys = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
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/// <summary>
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/// DES加密字符串
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/// </summary>
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/// <param name="encryptString">待加密的字符串</param>
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/// <param name="encryptKey">加密密钥,要求为16位</param>
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/// <returns>加密成功返回加密后的字符串，失败返回源串</returns>
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public static string EncryptDES(string encryptString, string encryptKey)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 16));
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
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var DCSP = Aes.Create();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Convert.ToBase64String(mStream.ToArray());
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}
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catch (Exception ex)
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{
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throw new Exception("数据库密码加密异常" + ex.Message);
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}
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}
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/// <summary>
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/// DES解密字符串
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/// </summary>
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/// <param name="decryptString">待解密的字符串</param>
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/// <param name="decryptKey">解密密钥,要求为16位,和加密密钥相同</param>
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/// <returns>解密成功返回解密后的字符串，失败返源串</returns>
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public static string DecryptDES(string decryptString, string decryptKey)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey.Substring(0, 16));
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Convert.FromBase64String(decryptString);
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var DCSP = Aes.Create();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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Byte[] inputByteArrays = new byte[inputByteArray.Length];
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Encoding.UTF8.GetString(mStream.ToArray());
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}
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catch (Exception ex)
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{
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Logger.Error("解密异常：str:" + decryptString + ",Key:" + decryptKey+"---"+ ex.Message);
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return null;
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}
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}
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#endregion
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}
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}
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