C#加密与解密
来源:互联网 发布:淘宝兼职是真的吗 编辑:程序博客网 时间:2024/05/01 17:43
//随机选8个字节既为密钥也为初始向量
private static byte[] KEY_64 = { 42, 16, 93, 156, 78, 4, 218, 32 };
private static byte[] IV_64 = { 55, 103, 246, 79, 36, 99, 167, 3 };
//标准的DES加密
public static string Encrypt(string value)
{
if (value != "")
{
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateEncryptor(KEY_64, IV_64), CryptoStreamMode.Write);
StreamWriter sw = new StreamWriter(cs);
sw.Write(value);
sw.Flush();
cs.FlushFinalBlock();
ms.Flush();
//再转换为一个字符串
return Convert.ToBase64String(ms.GetBuffer(), 0, int.Parse(ms.Length.ToString())).ToString();
}
return "";
}
//标准的DES解密
public static string Decrypt(string value)
{
if (value != "")
{
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
//从字符串转换为字节组
Byte[] buffer = Convert.FromBase64String(value);
MemoryStream ms = new MemoryStream(buffer);
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateDecryptor(KEY_64, IV_64), CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cs);
return sr.ReadToEnd();
}
return "";
//TRIPLE DES加密
public static string EncryptTripleDES(string value)
{
if (value != "")
{
TripleDESCryptoServiceProvider cryptoProvider = new TripleDESCryptoServiceProvider();
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateEncryptor(KEY_192, IV_192), CryptoStreamMode.Write);
StreamWriter sw = new StreamWriter(cs);
sw.Write(value);
sw.Flush();
cs.FlushFinalBlock();
ms.Flush();
//再转换为一个字符串
return Convert.ToBase64String(ms.GetBuffer(), 0, int.Parse(ms.Length.ToString()));
}
return "";
}
//TRIPLE DES解密
public static string DecryptTripleDES(string value)
{
if (value != "")
{
TripleDESCryptoServiceProvider cryptoProvider = new TripleDESCryptoServiceProvider();
//从字符串转换为字节组
Byte[] buffer = Convert.FromBase64String(value);
MemoryStream ms = new MemoryStream(buffer);
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateDecryptor(KEY_192, IV_192), CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cs);
return sr.ReadToEnd();
}
return "";
}
private static byte[] KEY_64 = { 42, 16, 93, 156, 78, 4, 218, 32 };
private static byte[] IV_64 = { 55, 103, 246, 79, 36, 99, 167, 3 };
//标准的DES加密
public static string Encrypt(string value)
{
if (value != "")
{
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateEncryptor(KEY_64, IV_64), CryptoStreamMode.Write);
StreamWriter sw = new StreamWriter(cs);
sw.Write(value);
sw.Flush();
cs.FlushFinalBlock();
ms.Flush();
//再转换为一个字符串
return Convert.ToBase64String(ms.GetBuffer(), 0, int.Parse(ms.Length.ToString())).ToString();
}
return "";
}
//标准的DES解密
public static string Decrypt(string value)
{
if (value != "")
{
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
//从字符串转换为字节组
Byte[] buffer = Convert.FromBase64String(value);
MemoryStream ms = new MemoryStream(buffer);
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateDecryptor(KEY_64, IV_64), CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cs);
return sr.ReadToEnd();
}
return "";
}
//对TripleDES,采取24字节或192位的密钥和初始向量
private static byte[] KEY_192 = { 42, 16, 93, 156, 78, 4, 218, 32, 15, 167, 44, 80, 26, 250, 155, 112, 2, 94, 11, 204, 119, 35, 184, 197 };
private static byte[] IV_192 = { 55, 103, 246, 79, 36, 99, 167, 3, 42, 5, 62, 83, 184, 7, 209, 13, 145, 23, 200, 58, 173, 10, 121, 222 };
//TRIPLE DES加密
public static string EncryptTripleDES(string value)
{
if (value != "")
{
TripleDESCryptoServiceProvider cryptoProvider = new TripleDESCryptoServiceProvider();
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateEncryptor(KEY_192, IV_192), CryptoStreamMode.Write);
StreamWriter sw = new StreamWriter(cs);
sw.Write(value);
sw.Flush();
cs.FlushFinalBlock();
ms.Flush();
//再转换为一个字符串
return Convert.ToBase64String(ms.GetBuffer(), 0, int.Parse(ms.Length.ToString()));
}
return "";
}
//TRIPLE DES解密
public static string DecryptTripleDES(string value)
{
if (value != "")
{
TripleDESCryptoServiceProvider cryptoProvider = new TripleDESCryptoServiceProvider();
//从字符串转换为字节组
Byte[] buffer = Convert.FromBase64String(value);
MemoryStream ms = new MemoryStream(buffer);
CryptoStream cs = new CryptoStream(ms, cryptoProvider.CreateDecryptor(KEY_192, IV_192), CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cs);
return sr.ReadToEnd();
}
return "";
}
- C#加密与解密
- C# 加密与解密
- C#加密与解密
- C#加密与解密
- c# 加密与解密
- C# 加密与解密
- C#数据加密与解密
- C#加密与解密函数
- C# MD5加密与解密
- C#加密与解密函数
- C#加密与解密技术
- C# Base64加密与解密
- C#加密与解密 (转)
- C# DES加密与解密
- 加密与解密 java c#
- c# 加密与解密 Base64Encode
- C#加密与解密数据
- C# RSA加密与解密
- define中#与##区别
- Banner修改经验总结
- 华为boss力荐公司高层看的一篇文章,真的很经典!!![转载]
- 2012 Multi-University Training Contest 6[hdu4350~4359]
- C++的重载(overload)与重写(override)
- C#加密与解密
- 在GAE(Google App Engine)上搭建python2.7的web.py程序
- LinearLayoutForListView 解决Listview与SrocllView 不冲突
- 使用cwRsync实现windows下文件定时同步(备份)
- KEIL里 Volatile的用法
- Android 屏蔽线控耳机,即屏蔽插入耳机自动启动系统播放器
- 近期 Hadoop实施心得与总结
- php解析xml(可解析任意深度)
- 最小生成树专题