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57 lines
1.7 KiB
57 lines
1.7 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Security.Cryptography;
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using System.Globalization;
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namespace Utils.Security
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{
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/// <summary>
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/// DES加密。方法一
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/// </summary>
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public class DES
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{
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/// <summary>
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/// 创建随机Key
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/// </summary>
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public string GenerateKey()//创建随机Key
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{
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DESCryptoServiceProvider desCrypto = (DESCryptoServiceProvider)DESCryptoServiceProvider.Create();
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return ASCIIEncoding.ASCII.GetString(desCrypto.Key);
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}
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/// <summary>
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/// 加密字符串
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/// </summary>
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public string EncryptString(string sInputString, string sKey)//加密字符串
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{
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byte[] data = Encoding.UTF8.GetBytes(sInputString);
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DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
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DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
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DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
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ICryptoTransform desencrypt = DES.CreateEncryptor();
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byte[] result = desencrypt.TransformFinalBlock(data, 0, data.Length);
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return BitConverter.ToString(result);
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}
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/// <summary>
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/// 解密字符串
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/// </summary>
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public string DecryptString(string sInputString, string sKey)//解密字符串
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{
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string[] sInput = sInputString.Split("-".ToCharArray());
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byte[] data = new byte[sInput.Length];
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for (int i = 0; i < sInput.Length; i++) {
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data[i] = byte.Parse(sInput[i], NumberStyles.HexNumber);
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}
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DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
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DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
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DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
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ICryptoTransform desencrypt = DES.CreateDecryptor();
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byte[] result = desencrypt.TransformFinalBlock(data, 0, data.Length);
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return Encoding.UTF8.GetString(result);
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}
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}
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}
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