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这篇文章将为大家详细讲解有关如何在c#中使用加密类,文章内容质量较高,因此小编分享给大家做个参考,希望大家阅读完这篇文章后对相关知识有一定的了解。
using System; using System.IO; using System.Text; using System.Security.Cryptography; using System.Web; namespace Encryption.App_Code { /// <summary> /// 加密码类 /// </summary> public class Encryption { /// <summary> /// 加密 /// </summary> /// <param name="inputString"></param> /// <returns></returns> public static string DesEncrypt(string inputString) { return DesEncrypt(inputString, Key); } /// <summary> /// 解密 /// </summary> /// <param name="inputString"></param> /// <returns></returns> public static string DesDecrypt(string inputString) { return DesDecrypt(inputString, Key); } /// <summary> /// 密匙 /// </summary> private static string Key { get { return "hongye10"; } } /// <summary> /// 加密字符串 /// 注意:密钥必须为8位 /// </summary> /// <param name="strText">字符串</param> /// <param name="encryptKey">密钥</param> /// <param name="encryptKey">返回加密后的字符串</param> public static string DesEncrypt(string inputString, string encryptKey) { byte[] byKey = null; byte[] IV = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; try { byKey = System.Text.Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8)); DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = Encoding.UTF8.GetBytes(inputString); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(byKey, IV), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); return Convert.ToBase64String(ms.ToArray()); } catch (System.Exception error) { //return error.Message; return null; } } /// <summary> /// 解密字符串 /// </summary> /// <param name="this.inputString">加了密的字符串</param> /// <param name="decryptKey">密钥</param> /// <param name="decryptKey">返回解密后的字符串</param> public static string DesDecrypt(string inputString, string decryptKey) { byte[] byKey = null; byte[] IV = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; byte[] inputByteArray = new Byte[inputString.Length]; try { byKey = System.Text.Encoding.UTF8.GetBytes(decryptKey.Substring(0, 8)); DESCryptoServiceProvider des = new DESCryptoServiceProvider(); inputByteArray = Convert.FromBase64String(inputString); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(byKey, IV), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); System.Text.Encoding encoding = new System.Text.UTF8Encoding(); return encoding.GetString(ms.ToArray()); } catch (System.Exception error) { //return error.Message; return null; } } } }
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