代码
//
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 " );;
}
// 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 " );;
}
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 " );;
}
// 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();
}
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;
}
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;
}
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();
}
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;
}
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();
}
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();
}
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();
}
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;
}
}
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;
}
}
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;
}
}
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.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.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.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();
}