C#加密算法汇总

OStack程序员社区-中国程序员成长平台 › 门户 › 编程› C++›C++教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

方法一：
	//须添加对System.Web的引用 
	using System.Web.Security; 
	
	... 
	
	/// <summary> 
	/// SHA1加密字符串 
	/// </summary> 
	/// <param name="source">源字符串</param> 
	/// <returns>加密后的字符串</returns> 
	public string SHA1(string source) 
	{ 
	    return FormsAuthentication.HashPasswordForStoringInConfigFile(source, "SHA1"); 
	} 


	/// <summary> 
	/// MD5加密字符串 
	/// </summary> 
	/// <param name="source">源字符串</param> 
	/// <returns>加密后的字符串</returns> 
	public string MD5(string source) 
	{ 
	    return FormsAuthentication.HashPasswordForStoringInConfigFile(source, "MD5");; 
	}

方法二(可逆加密解密)：
	using System.Security.Cryptography; 
	
	... 
	
	public string Encode(string data) 
	{ 
	    byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); 
	    byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); 
	
	    DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); 
	    int i = cryptoProvider.KeySize; 
	    MemoryStream ms = new MemoryStream(); 
	    CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write); 
	
	    StreamWriter sw = new StreamWriter(cst); 
	    sw.Write(data); 
	    sw.Flush(); 
	    cst.FlushFinalBlock(); 
	    sw.Flush(); 
	    return Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length); 
	
	} 
	
	public string Decode(string data) 
	{ 
	    byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); 
	    byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); 
	
	    byte[] byEnc; 
	    try 
	    { 
	        byEnc = Convert.FromBase64String(data); 
	    } 
	    catch 
	    { 
	        return null; 
	    } 
	
	    DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); 
	    MemoryStream ms = new MemoryStream(byEnc); 
	    CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read); 
	    StreamReader sr = new StreamReader(cst); 
	    return sr.ReadToEnd(); 
	}

方法三(MD5不可逆)：
	using System.Security.Cryptography; 
	
	... 
	
	//MD5不可逆加密 
	
	//32位加密 
	
	public string GetMD5_32(string s, string _input_charset) 
	{ 
	    MD5 md5 = new MD5CryptoServiceProvider(); 
	    byte[] t = md5.ComputeHash(Encoding.GetEncoding(_input_charset).GetBytes(s)); 
	    StringBuilder sb = new StringBuilder(32); 
	    for (int i = 0; i < t.Length; i++) 
	    { 
	        sb.Append(t[i].ToString("x").PadLeft(2, '0')); 
	    } 
	    return sb.ToString(); 
	} 
	
	//16位加密 
	public static string GetMd5_16(string ConvertString) 
	{ 
	    MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); 
	    string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8); 
	    t2 = t2.Replace("-", ""); 
	    return t2; 
	}

方法四(对称加密)：
	using System.IO; 
	using System.Security.Cryptography; 
	
	... 
	
	private SymmetricAlgorithm mobjCryptoService; 
	private string Key; 
	/// <summary>    
	/// 对称加密类的构造函数    
	/// </summary>    
	public SymmetricMethod() 
	{ 
	    mobjCryptoService = new RijndaelManaged(); 
	    Key = "Guz(%&hj7x89H$yuBI0456FtmaT5&fvHUFCy76*h%(HilJ$lhj!y6&(*jkP87jH7"; 
	} 
	/// <summary>    
	/// 获得密钥    
	/// </summary>    
	/// <returns>密钥</returns>    
	private byte[] GetLegalKey() 
	{ 
	    string sTemp = Key; 
	    mobjCryptoService.GenerateKey(); 
	    byte[] bytTemp = mobjCryptoService.Key; 
	    int KeyLength = bytTemp.Length; 
	    if (sTemp.Length > KeyLength) 
	        sTemp = sTemp.Substring(0, KeyLength); 
	    else if (sTemp.Length < KeyLength) 
	        sTemp = sTemp.PadRight(KeyLength, ' '); 
	    return ASCIIEncoding.ASCII.GetBytes(sTemp); 
	} 
	/// <summary>    
	/// 获得初始向量IV    
	/// </summary>    
	/// <returns>初试向量IV</returns>    
	private byte[] GetLegalIV() 
	{ 
	    string sTemp = "E4ghj*Ghg7!rNIfb&95GUY86GfghUb#er57HBh(u%g6HJ($jhWk7&!hg4ui%$hjk"; 
	    mobjCryptoService.GenerateIV(); 
	    byte[] bytTemp = mobjCryptoService.IV; 
	    int IVLength = bytTemp.Length; 
	    if (sTemp.Length > IVLength) 
	        sTemp = sTemp.Substring(0, IVLength); 
	    else if (sTemp.Length < IVLength) 
	        sTemp = sTemp.PadRight(IVLength, ' '); 
	    return ASCIIEncoding.ASCII.GetBytes(sTemp); 
	} 
	/// <summary>    
	/// 加密方法    
	/// </summary>    
	/// <param name="Source">待加密的串</param>    
	/// <returns>经过加密的串</returns>    
	public string Encrypto(string Source) 
	{ 
	    byte[] bytIn = UTF8Encoding.UTF8.GetBytes(Source); 
	    MemoryStream ms = new MemoryStream(); 
	    mobjCryptoService.Key = GetLegalKey(); 
	    mobjCryptoService.IV = GetLegalIV(); 
	    ICryptoTransform encrypto = mobjCryptoService.CreateEncryptor(); 
	    CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Write); 
	    cs.Write(bytIn, 0, bytIn.Length); 
	    cs.FlushFinalBlock(); 
	    ms.Close(); 
	    byte[] bytOut = ms.ToArray(); 
	    return Convert.ToBase64String(bytOut); 
	} 
	/// <summary>    
	/// 解密方法    
	/// </summary>    
	/// <param name="Source">待解密的串</param>    
	/// <returns>经过解密的串</returns>    
	public string Decrypto(string Source) 
	{ 
	    byte[] bytIn = Convert.FromBase64String(Source); 
	    MemoryStream ms = new MemoryStream(bytIn, 0, bytIn.Length); 
	    mobjCryptoService.Key = GetLegalKey(); 
	    mobjCryptoService.IV = GetLegalIV(); 
	    ICryptoTransform encrypto = mobjCryptoService.CreateDecryptor(); 
	    CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Read); 
	    StreamReader sr = new StreamReader(cs); 
	    return sr.ReadToEnd(); 
	}

方法五：
	using System.IO; 
	using System.Security.Cryptography; 
	using System.Text; 
	
	... 
	
	//默认密钥向量 
	private static byte[] Keys = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; 
	/// <summary> 
	/// DES加密字符串 
	/// </summary> 
	/// <param name="encryptString">待加密的字符串</param> 
	/// <param name="encryptKey">加密密钥,要求为8位</param> 
	/// <returns>加密成功返回加密后的字符串，失败返回源串</returns> 
	public static string EncryptDES(string encryptString, string encryptKey) 
	{ 
	    try 
	    { 
	        byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8)); 
	        byte[] rgbIV = Keys; 
	        byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString); 
	        DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider(); 
	        MemoryStream mStream = new MemoryStream(); 
	        CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write); 
	        cStream.Write(inputByteArray, 0, inputByteArray.Length); 
	        cStream.FlushFinalBlock(); 
	        return Convert.ToBase64String(mStream.ToArray()); 
	    } 
	    catch 
	    { 
	        return encryptString; 
	    } 
	} 
	
	/// <summary> 
	/// DES解密字符串 
	/// </summary> 
	/// <param name="decryptString">待解密的字符串</param> 
	/// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param> 
	/// <returns>解密成功返回解密后的字符串，失败返源串</returns> 
	public static string DecryptDES(string decryptString, string decryptKey) 
	{ 
	    try 
	    { 
	        byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey); 
	        byte[] rgbIV = Keys; 
	        byte[] inputByteArray = Convert.FromBase64String(decryptString); 
	        DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider(); 
	        MemoryStream mStream = new MemoryStream(); 
	        CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write); 
	        cStream.Write(inputByteArray, 0, inputByteArray.Length); 
	        cStream.FlushFinalBlock(); 
	        return Encoding.UTF8.GetString(mStream.ToArray()); 
	    } 
	    catch 
	    { 
	        return decryptString; 
	    } 
	}

方法六(文件加密)：
	using System.IO; 
	using System.Security.Cryptography; 
	using System.Text; 
	
	... 
	
	//加密文件 
	private static void EncryptData(String inName, String outName, byte[] desKey, byte[] desIV) 
	{ 
	    //Create the file streams to handle the input and output files. 
	    FileStream fin = new FileStream(inName, FileMode.Open, FileAccess.Read); 
	    FileStream fout = new FileStream(outName, FileMode.OpenOrCreate, FileAccess.Write); 
	    fout.SetLength(0); 
	
	    //Create variables to help with read and write. 
	    byte[] bin = new byte[100]; //This is intermediate storage for the encryption. 
	    long rdlen = 0;              //This is the total number of bytes written. 
	    long totlen = fin.Length;    //This is the total length of the input file. 
	    int len;                     //This is the number of bytes to be written at a time. 
	
	    DES des = new DESCryptoServiceProvider(); 
	    CryptoStream encStream = new CryptoStream(fout, des.CreateEncryptor(desKey, desIV), CryptoStreamMode.Write); 
	
	    //Read from the input file, then encrypt and write to the output file. 
	    while (rdlen < totlen) 
	    { 
	        len = fin.Read(bin, 0, 100); 
	        encStream.Write(bin, 0, len); 
	        rdlen = rdlen + len; 
	    } 
	
	    encStream.Close(); 
	    fout.Close(); 
	    fin.Close(); 
	} 
	
	//解密文件 
	private static void DecryptData(String inName, String outName, byte[] desKey, byte[] desIV) 
	{ 
	    //Create the file streams to handle the input and output files. 
	    FileStream fin = new FileStream(inName, FileMode.Open, FileAccess.Read); 
	    FileStream fout = new FileStream(outName, FileMode.OpenOrCreate, FileAccess.Write); 
	    fout.SetLength(0); 
	
	    //Create variables to help with read and write. 
	    byte[] bin = new byte[100]; //This is intermediate storage for the encryption. 
	    long rdlen = 0;              //This is the total number of bytes written. 
	    long totlen = fin.Length;    //This is the total length of the input file. 
	    int len;                     //This is the number of bytes to be written at a time. 
	
	    DES des = new DESCryptoServiceProvider(); 
	    CryptoStream encStream = new CryptoStream(fout, des.CreateDecryptor(desKey, desIV), CryptoStreamMode.Write); 
	
	    //Read from the input file, then encrypt and write to the output file. 
	    while (rdlen < totlen) 
	    { 
	        len = fin.Read(bin, 0, 100); 
	        encStream.Write(bin, 0, len); 
	        rdlen = rdlen + len; 
	    } 
	
	    encStream.Close(); 
	    fout.Close(); 
	    fin.Close(); 

}

using System; using System.Security.Cryptography;//这个是处理文字编码的前提 using System.Text; using System.IO; /// <summary> /// DES加密方法 /// </summary> /// <param name="strPlain">明文</param> /// <param name="strDESKey">密钥</param> /// <param name="strDESIV">向量</param> /// <returns>密文</returns> public string DESEncrypt(string strPlain,string strDESKey,string strDESIV) { //把密钥转换成字节数组 byte[] bytesDESKey=ASCIIEncoding.ASCII.GetBytes(strDESKey); //把向量转换成字节数组 byte[] bytesDESIV=ASCIIEncoding.ASCII.GetBytes(strDESIV); //声明1个新的DES对象 DESCryptoServiceProvider desEncrypt=new DESCryptoServiceProvider(); //开辟一块内存流 MemoryStream msEncrypt=new MemoryStream(); //把内存流对象包装成加密流对象 CryptoStream csEncrypt=new CryptoStream(msEncrypt,desEncrypt.CreateEncryptor(bytesDESKey,bytesDESIV),CryptoStreamMode.Write); //把加密流对象包装成写入流对象 StreamWriter swEncrypt=new StreamWriter(csEncrypt); //写入流对象写入明文 swEncrypt.WriteLine(strPlain); //写入流关闭 swEncrypt.Close(); //加密流关闭 csEncrypt.Close(); //把内存流转换成字节数组，内存流现在已经是密文了 byte[] bytesCipher=msEncrypt.ToArray(); //内存流关闭 msEncrypt.Close(); //把密文字节数组转换为字符串，并返回 return UnicodeEncoding.Unicode.GetString(bytesCipher); } /// <summary> /// DES解密方法 /// </summary> /// <param name="strCipher">密文</param> /// <param name="strDESKey">密钥</param> /// <param name="strDESIV">向量</param> /// <returns>明文</returns> public string DESDecrypt(string strCipher,string strDESKey,string strDESIV) { //把密钥转换成字节数组 byte[] bytesDESKey=ASCIIEncoding.ASCII.GetBytes(strDESKey); //把向量转换成字节数组 byte[] bytesDESIV=ASCIIEncoding.ASCII.GetBytes(strDESIV); //把密文转换成字节数组 byte[] bytesCipher=UnicodeEncoding.Unicode.GetBytes(strCipher); //声明1个新的DES对象 DESCryptoServiceProvider desDecrypt=new DESCryptoServiceProvider(); //开辟一块内存流，并存放密文字节数组 MemoryStream msDecrypt=new MemoryStream(bytesCipher); //把内存流对象包装成解密流对象 CryptoStream csDecrypt=new CryptoStream(msDecrypt,desDecrypt.CreateDecryptor(bytesDESKey,bytesDESIV),CryptoStreamMode.Read); //把解密流对象包装成读出流对象 StreamReader srDecrypt=new StreamReader(csDecrypt); //明文=读出流的读出内容 string strPlainText=srDecrypt.ReadLine(); //读出流关闭 srDecrypt.Close(); //解密流关闭 csDecrypt.Close(); //内存流关闭 msDecrypt.Close(); //返回明文 return strPlainText; }

鲜花

握手

雷人

路过

鸡蛋

该文章已有0人参与评论

请发表评论

全部评论

专题导读

More+

10-27 六六分期app的软件客服如何联系？(六六分期

11-06 可心卡盟:win10系统火狐flash插件崩溃怎么

11-06 亲亲特价:怎么删除回收站图标

11-06 济南大学虚拟社区:鲁大师节能降温的具体办

11-06 xlueops.exe:无线网络安装向导

11-06 女斗合众国:win7系统cf与主机连接不稳定怎

11-06 0xc000022-[cf烟雾头]cf怎么调烟雾头

11-06 qizideyouhuo:应用程序无法正常启动0xc0000

11-06 ipz-185:win7系统vcf文件怎么打开

11-06 傻哥蹦迪:win10系统s4怎么打开usb调试

11-06 八神浩树gtaste:回收站清空了怎么恢复

11-06 妖尾之黑色守护:win10系统电脑没有1440x900

11-06 校园至尊魔王小说:win7系统浏览网页时字体

11-06 女斗合众国:win10系统访问共享文件夹提示请

11-06 tokyo hot n0654:恢复win7系统默认字体一招

11-06 雨酷仙境:设置win7系统转移临时文件夹腾出

11-06 阿穆纳伊之杖:win7系统开始菜单在右边还原

11-06 tunespotting:win10系统火狐flash插件总是

11-06 甘尔葛分析师：计谋网站seo关键词暴涨有什

11-06 蔡贵霖: 计谋网站seo关键词暴涨有什么秘密

11-06 博益网首页:ao3网页版进入不了解决方法

11-06 漏斗子专栏: 网站数据分析小白易懂精华篇

11-06 见证双虹怎么做:win7系统开启telnet命令的

11-06 颾狐蝶蜋:系统资源不足无法完成请求的服务

11-06 国光中学校歌:提交网站到alexa查询详细步骤

11-06 西安有情天:静态网页和动态网页的区别

11-06 红木雅尚斋:外部链接构造对网站的好处

11-06 前官礼遇：防止域名劫持–增强域安全性的10

11-06 密传二转答案: 中文分词算法有哪些

11-06 金泉家园邮编:百度快照劫持的表现及应对方

C# 匿名委托实现闭包发布时间：2022-07-14

C++宏函数发布时间：2022-07-14

剪的笔顺,诠释剪的笔画,认识剪的部首

1 六六分期app的软件客服如何联系？(六六分期

六六分期app的软件客服如何联系？不知道吗？加qq群【895510560】即可！标题：六六分期

阅读：19137|2023-10-27

2 可心卡盟:win10系统火狐flash插件崩溃怎么

今天小编告诉大家如何处理win10系统火狐flash插件总是崩溃的问题，可能很多用户都不知

阅读：9973|2022-11-06

3 亲亲特价:怎么删除回收站图标

今天小编告诉大家如何对win10系统删除桌面回收站图标进行设置，可能很多用户都不知道

阅读：8317|2022-11-06

4 济南大学虚拟社区:鲁大师节能降温的具体办

今天小编告诉大家如何对win10系统电脑设置节能降温的设置方法，想必大家都遇到过需要

阅读：8686|2022-11-06

5 xlueops.exe:无线网络安装向导

我们在使用xp系统的过程中,经常需要对xp系统无线网络安装向导设置进行设置，可能很多

阅读：8627|2022-11-06

6 女斗合众国:win7系统cf与主机连接不稳定怎

今天小编告诉大家如何处理win7系统玩cf老是与主机连接不稳定的问题，可能很多用户都不

阅读：9643|2022-11-06

7 0xc000022-[cf烟雾头]cf怎么调烟雾头

电脑对日常生活的重要性小编就不多说了，可是一旦碰到win7系统设置cf烟雾头的问题，很

阅读：8611|2022-11-06

8 qizideyouhuo:应用程序无法正常启动0xc0000

我们在日常使用电脑的时候，有的小伙伴们可能在打开应用的时候会遇见提示应用程序无法

阅读：7991|2022-11-06

9 ipz-185:win7系统vcf文件怎么打开

今天小编告诉大家如何对win7系统打开vcf文件进行设置，可能很多用户都不知道怎么对win

阅读：8642|2022-11-06

10 傻哥蹦迪:win10系统s4怎么打开usb调试

今天小编告诉大家如何对win10系统s4开启USB调试模式进行设置，可能很多用户都不知道怎

阅读：7527|2022-11-06

客服电话

电子邮件

C#加密算法汇总

请发表评论

全部评论

上一篇：

下一篇：

bluegill/katana:

OpenNBS/OpenNoteBlockStudio: An open-sou

juleswhite/mobilecloud-15: Programming C

CVE-2022-22205

JunichiT/JTMaterialSwitch: A Customizabl

剪的笔顺,诠释剪的笔画,认识剪的部首

六六分期app的软件客服如何联系？(六六分期

florent37/ViewAnimator: A fluent Android

florent37/Shrine-MaterialDesign2: implem

CVE-2020-36276

SimpleSoftwareIO/simple-sms: Send and re

关于我们

产品与服务

解决方案

139-2527-9053