| private CreateEncryptor ( ) : ICryptoTransform | ||
| return | ICryptoTransform | |
public static string Encrypt( string strEncryptString, string strEncryptionKey)
{
byte[] inputByteArray;
try
{
key = Encoding.UTF8.GetBytes(strEncryptionKey.Substring(0, 8));
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
inputByteArray = Encoding.UTF8.GetBytes(strEncryptString);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return Convert.ToBase64String(ms.ToArray());
}
catch (Exception eX)
{
throw eX;
}
}
/// <summary>
/// 加密方法
/// </summary>
/// <param name="pToEncrypt">需要加密字符串</param>
/// <param name="sKey">密钥</param>
/// <returns>加密后的字符串</returns>
public static string Encrypt(string pToEncrypt, string sKey)
{
try
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
//把字符串放到byte数组中
//原来使用的UTF8编码，我改成Unicode编码了，不行
byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
//建立加密对象的密钥和偏移量
//使得输入密码必须输入英文文本
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
ret.ToString();
return ret.ToString();
}
catch (Exception ex)
{
}
return "";
}
public static string Encode(string str, string key)
{
DESCryptoServiceProvider provider = new DESCryptoServiceProvider();
provider.Key = Encoding.ASCII.GetBytes(key.Substring(0, 8));
provider.IV = Encoding.ASCII.GetBytes(key.Substring(0, 8));
byte[] bytes = Encoding.UTF8.GetBytes(str);
MemoryStream stream = new MemoryStream();
CryptoStream stream2 = new CryptoStream(stream, provider.CreateEncryptor(), CryptoStreamMode.Write);
stream2.Write(bytes, 0, bytes.Length);
stream2.FlushFinalBlock();
StringBuilder builder = new StringBuilder();
foreach (byte num in stream.ToArray())
{
builder.AppendFormat("{0:X2}", num);
}
stream.Close();
return builder.ToString();
}
public string EncryptField(string fieldValue)
{
string result = string.Empty;
if (!string.IsNullOrEmpty(fieldValue)) {
try {
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream, cryptoProvider.CreateEncryptor(this.key, this.key), CryptoStreamMode.Write);
StreamWriter writer = new StreamWriter(cryptoStream);
writer.Write(fieldValue);
writer.Flush();
cryptoStream.FlushFinalBlock();
writer.Flush();
result = Convert.ToBase64String(memoryStream.GetBuffer(), 0, (int)memoryStream.Length);
} catch (Exception ex) {
/*LogManager.GetCurrentClassLogger().Error(
errorMessage => errorMessage("Could not encrypt value: {0}", fieldValue), ex);*/
throw new ApplicationException("Could not encrypt value: " + fieldValue, ex);
}
}
return result;
}
/// <summary>
/// Do Encry for plainString.
/// </summary>
/// <param name="plainString">Plain string.</param>
/// <returns>Encrypted string as base64.</returns>
public string Encrypt(string plainString)
{
// Create the file streams to handle the input and output files.
MemoryStream fout = new MemoryStream(200);
fout.SetLength(0);
// Create variables to help with read and write.
byte[] bin = System.Text.Encoding.Unicode.GetBytes(plainString);
DES des = new DESCryptoServiceProvider();
// des.KeySize=64;
CryptoStream encStream = new CryptoStream(fout, des.CreateEncryptor(desKey, desIV), CryptoStreamMode.Write);
encStream.Write(bin, 0, bin.Length);
encStream.FlushFinalBlock();
fout.Flush();
fout.Seek(0, SeekOrigin.Begin);
// read all string
byte[] bout = new byte[fout.Length];
fout.Read(bout, 0, bout.Length);
encStream.Close();
fout.Close();
return Convert.ToBase64String(bout, 0, bout.Length);
}
/// <summary>
/// 加密文件
/// </summary>
public static void EncryptFile(string Value, string OuputFileName)
{
try
{
// Must be 64 bits, 8 bytes.
// Distribute this key to the user who will decrypt this file.
//Get the Key for the file to Encrypt.
string sKey = GenerateKey();
byte[] b = ASCIIEncoding.ASCII.GetBytes(Value);
System.IO.FileStream fsEncrypted = new System.IO.FileStream(OuputFileName, System.IO.FileMode.Create, System.IO.FileAccess.Write);
System.Security.Cryptography.DESCryptoServiceProvider DES = new System.Security.Cryptography.DESCryptoServiceProvider();
DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
System.Security.Cryptography.ICryptoTransform desencrypt = DES.CreateEncryptor();
System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(fsEncrypted, desencrypt, System.Security.Cryptography.CryptoStreamMode.Write);
cs.Write(b, 0, b.Length);
cs.Close();
fsEncrypted.Close();
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// DES 加密算法
/// </summary>
/// <param name="str">待加密字符串</param>
/// <returns>加密后字符串</returns>
public static string EncodeStr(string str)
{
try
{
byte[] temp = Encoding.UTF8.GetBytes(str);
using (DESCryptoServiceProvider desc = new DESCryptoServiceProvider())
{
desc.Key = ASCIIEncoding.ASCII.GetBytes(key); desc.IV = ASCIIEncoding.ASCII.GetBytes(iv);
using (MemoryStream ms = new MemoryStream())
{
using (CryptoStream cs = new CryptoStream(ms, desc.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(temp, 0, temp.Length);
cs.FlushFinalBlock();
}
StringBuilder sb = new StringBuilder();
foreach (byte b in ms.ToArray())
{
sb.AppendFormat("{0:X2}", b);
}
return sb.ToString();
}
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 加密字符串
/// </summary>
/// <param name="encryptString"></param>
/// <returns></returns>
public static string Encrypt(string encryptString)
{
System.IO.MemoryStream mStream = null;
System.Security.Cryptography.CryptoStream cStream = null;
try
{
EncryptUtil des = new EncryptUtil();
byte[] rgbKey = Encoding.UTF8.GetBytes(des.encryptKey.Substring(0, 8));
byte[] rgbIV = Encoding.UTF8.GetBytes(des.encryptIV.Substring(0, 8));
byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
System.Security.Cryptography.DESCryptoServiceProvider dCSP = new System.Security.Cryptography.DESCryptoServiceProvider();
mStream = new System.IO.MemoryStream();
cStream = new System.Security.Cryptography.CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), System.Security.Cryptography.CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return(Convert.ToBase64String(mStream.ToArray()));
}
catch (Exception)
{
return(encryptString);
}
finally
{
if (mStream != null)
{
mStream.Close(); mStream.Dispose();
}
if (cStream != null)
{
cStream.Close(); cStream.Dispose();
}
}
}
/// <summary>
/// DES加密
/// </summary>
/// <param name="str"></param>
/// <param name="key"></param>
/// <returns></returns>
public static string DESEncrypt(string str, string key)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
//把字符串放到byte数组中
byte[] inputByteArray = Encoding.Default.GetBytes(str);
//建立加密对象的密钥和偏移量
//原文使用ASCIIEncoding.ASCII方法的GetBytes方法
//使得输入密码必须输入英文文本
des.Key = ASCIIEncoding.ASCII.GetBytes(key);
des.IV = ASCIIEncoding.ASCII.GetBytes(key);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
//Write the byte array into the crypto stream
//(It will end up in the memory stream)
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
//Get the data back from the memory stream, and into a string
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
//Format as hex
ret.AppendFormat("{0:X2}", b);
}
ret.ToString();
return ret.ToString();
}
/// <summary>
/// encrypt a file
/// </summary>
/// <param name="unencryptedFileName">name of the plain text file</param>
/// <param name="encryptedFileName">name of the encrypted file to create and write to</param>
/// <param name="key">the key to use to encrypt the file</param>
public static void Encrypt(string unencryptedFileName, string encryptedFileName, string key)
{
// create file IO streams
FileStream openStream = new FileStream(unencryptedFileName, FileMode.Open, FileAccess.Read);
FileStream writeStream = new FileStream(encryptedFileName, FileMode.Create, FileAccess.Write);
// create the crypto service provider
DESCryptoServiceProvider crypto = new DESCryptoServiceProvider();
// set the key and initialization vector
byte[] keyBytes = ASCIIEncoding.ASCII.GetBytes(key);
crypto.Key = keyBytes;
crypto.IV = keyBytes;
// create the CtryptoStream object to transform plain text to encrypted and write it to disk
ICryptoTransform transform = crypto.CreateEncryptor();
CryptoStream cryptoStream = new CryptoStream(writeStream, transform, CryptoStreamMode.Write);
byte[] unencryptedBytes = new byte[openStream.Length];
openStream.Read(unencryptedBytes, 0, unencryptedBytes.Length);
// write to disk
cryptoStream.Write(unencryptedBytes, 0, unencryptedBytes.Length);
// close connections
openStream.Close();
cryptoStream.Close();
writeStream.Close();
}
//The function used to encrypt the text
private static string Encrypt(string strText, string strEncrKey)
{
byte[] byKey =
{
};
byte[] IV =
{
0x12,
0x34,
0x56,
0x78,
0x90,
0xab,
0xcd,
0xef
};
try
{
byKey = System.Text.Encoding.UTF8.GetBytes(Left(strEncrKey, 8));
System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.UTF8.GetBytes(strText);
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 (Exception ex)
{
return(ex.Message);
}
}
public void EncryptFile(string sInputFilename,string sOutputFilename,string sKey)
{
var fsInput = new FileStream(sInputFilename,
FileMode.Open,
FileAccess.Read);
var fsEncrypted = new FileStream(sOutputFilename,
FileMode.Create,
FileAccess.Write);
var DES = new DESCryptoServiceProvider();
DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
ICryptoTransform desencrypt = DES.CreateEncryptor();
var cryptostream = new CryptoStream(fsEncrypted,
desencrypt,
CryptoStreamMode.Write);
byte[] bytearrayinput = new byte[fsInput.Length - 1];
fsInput.Read(bytearrayinput, 0, bytearrayinput.Length);
cryptostream.Write(bytearrayinput, 0, bytearrayinput.Length);
cryptostream.Close();
fsInput.Close();
fsEncrypted.Close();
}
public static string Edes(string encryptString, string encryptKey = "VavicApp")
{
try
{
byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
//rgbIV与rgbKey可以不一样，这里只是为了简便，读者可以自行修改
byte[] rgbIV = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
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>
/// 用给定的Key进行加密
/// </summary>
/// <param name="key">密钥</param>
/// <param name="encryptString">要加密的字符串</param>
/// <returns>加密后的字符串</returns>
public static string Encrypt(string encryptString, string key)
{
if (string.IsNullOrWhiteSpace(key))
key = _Key;
else
key += _Key;
if (string.IsNullOrWhiteSpace(encryptString))
encryptString = string.Empty;
byte[] keyBytes = Encoding.UTF8.GetBytes(key.Substring(0, 8));
byte[] keyIV = keyBytes;
byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
using (DESCryptoServiceProvider provider = new DESCryptoServiceProvider())
{
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, provider.CreateEncryptor(keyBytes, keyIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
//Get the data back from the memory stream, and into a string
StringBuilder ret = new StringBuilder();
foreach (byte b in mStream.ToArray())
{
//Format as hex
ret.AppendFormat("{0:X2}", b);
}
return ret.ToString();
}
}
/// <summary>
/// 对流进行加密或解密
/// </summary>
/// <param name="inS">输入流</param>
/// <param name="outS">输出流</param>
/// <param name="desKey">密钥</param>
/// <param name="desIV">向量</param>
/// <param name="isEncrypt">是否加密</param>
/// <returns>成功返回true，失败返回false</returns>
private static bool cryptIt(Stream inS, Stream outS, byte[] desKey, byte[] desIV, bool isEncrypt)
{
try
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
ICryptoTransform mode = null;
if (isEncrypt)
mode = des.CreateEncryptor(desKey, desIV);
else
mode = des.CreateDecryptor(desKey, desIV);
CryptoStream cs = new CryptoStream(inS, mode, CryptoStreamMode.Read);
byte[] bin = new byte[100];
int len;
while ((len = cs.Read(bin, 0, bin.Length)) != 0)
{
outS.Write(bin, 0, len);
}
//流位置重置
inS.Position = 0;
outS.Position = 0;
return true;
}
catch (Exception exc)
{
MessageBox.Show(exc.Message, "错误");
return false;
}
}
/// <summary>
/// Encrypts a string
/// </summary>
/// <param name="key">The key that will be used to encrypt the data</param>
/// <param name="data">The string you wish to encrypt</param>
/// <returns>Encrypted data</returns>
public static string Encrypt(string key, string data)
{
string result = string.Empty;
if (!string.IsNullOrEmpty(data))
{
byte[] m_Key = new byte[8];
byte[] m_IV = new byte[8];
InitKey(key, ref m_Key, ref m_IV);
DESCryptoServiceProvider csprov = new DESCryptoServiceProvider();
MemoryStream memstream = new MemoryStream();
CryptoStream crstream = new CryptoStream(memstream, csprov.CreateEncryptor(m_Key, m_IV), CryptoStreamMode.Write);
StreamWriter sw = new StreamWriter(crstream);
sw.Write(data);
sw.Flush();
crstream.FlushFinalBlock();
memstream.Flush();
result = Convert.ToBase64String(memstream.GetBuffer(), 0, Convert.ToInt32(memstream.Length));
sw.Close();
crstream.Close();
memstream.Close();
}
return result;
}
public static bool EncryptFile (Stream streamToEncrypt, string sOutputFilename) {
try {
FileStream fsEncrypted = new FileStream (sOutputFilename,
FileMode.Create,
FileAccess.Write);
DESCryptoServiceProvider DES = new DESCryptoServiceProvider ();
DES.Key = ASCIIEncoding.ASCII.GetBytes (key);
DES.IV = ASCIIEncoding.ASCII.GetBytes (key);
ICryptoTransform desencrypt = DES.CreateEncryptor ();
CryptoStream cryptostream = new CryptoStream (fsEncrypted,
desencrypt,
CryptoStreamMode.Write);
MemoryStream outputStream = streamToEncrypt as MemoryStream;
// Set the position to the beginning of the stream.
outputStream.Seek (0, SeekOrigin.Begin);
byte[] byteArray = new byte[outputStream.Length];
int count = 0;
while (count < outputStream.Length) {
byteArray [count++] = Convert.ToByte (outputStream.ReadByte ());
}
cryptostream.Write (byteArray, 0, byteArray.Length);
cryptostream.Close ();
fsEncrypted.Close ();
} catch (Exception ex) {
return false;
}
return true;
}
public static ICryptoTransform CreateEncryptor(string key, CryptionType type)
{
ICryptoTransform transform;
SHA512 sha512 = new SHA512CryptoServiceProvider();
var bytes = sha512.ComputeHash(Sha1(key).ToAsciiBytes());
switch (type)
{
case CryptionType.Aes:
var aes = Rijndael.Create();
aes.Mode = CipherMode.CBC;
transform = aes.CreateEncryptor(bytes.Skip(17).Take(32).ToArray(), bytes.Skip(17).Take(16).ToArray());
aes.Clear();
break;
case CryptionType.Des:
var des = new DESCryptoServiceProvider { Mode = CipherMode.CBC };
transform = des.CreateEncryptor(bytes.Skip(17).Take(8).ToArray(), bytes.Skip(17).Take(16).ToArray());
des.Clear();
break;
default:
var tripleDes = new TripleDESCryptoServiceProvider { Mode = CipherMode.CBC };
transform = tripleDes.CreateEncryptor(bytes.Skip(17).Take(24).ToArray(), bytes.Skip(17).Take(16).ToArray());
tripleDes.Clear();
break;
}
return transform;
}
/// <summary>
/// 使用DES以及固定的密码加密字符串
/// </summary>
/// <param name="pToEncrypt">待加密字符串</param>
/// <returns></returns>
public static string EncryptString(string pToEncrypt)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
try
{
byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
des.Key = Encoding.Default.GetBytes(DESKEY);
des.IV = Encoding.Default.GetBytes(DESKEY);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(),
CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
ret.ToString();
return ret.ToString();
}
catch
{
return pToEncrypt;
}
finally
{
des = null;
}
}
/// <summary>
/// 加密字符串
/// </summary>
/// <param name="inputStr">输入字符串</param>
/// <param name="keyStr">密码，可以为“”</param>
/// <returns>输出加密后字符串</returns>
public string EncryptString(string inputStr, string keyStr)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
if (keyStr == "")
keyStr = key;
byte[] inputByteArray = Encoding.Default.GetBytes(inputStr);
byte[] keyByteArray = Encoding.Default.GetBytes(keyStr);
SHA1 ha = new SHA1Managed();
byte[] hb = ha.ComputeHash(keyByteArray);
sKey = new byte[8];
sIV = new byte[8];
for (int i = 0; i < 8; i++)
sKey[i] = hb[i];
for (int i = 8; i < 16; i++)
sIV[i - 8] = hb[i];
des.Key = sKey;
des.IV = sIV;
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
cs.Close();
ms.Close();
return ret.ToString();
}
public static void EncryptFile(string sInputFilename, string sOutputFilename, string sKey) {
FileStream fsInput = new FileStream(sInputFilename, FileMode.Open, FileAccess.Read);
/* The statement above initializes the stream intended to read the input file under the passed variable
sInputFilename with action Open and Access Type reading
*/
FileStream fsEncrypted = new FileStream(sOutputFilename, FileMode.Create, FileAccess.Write);
/*
The statement above is intended to create a stream that will create the output file
*/
DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
//Set secret key For DES algorithm.
DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
//Set initialization vector.
ICryptoTransform desencrypt = DES.CreateEncryptor();
//Create a DES encryptor from the DES instance.
CryptoStream cryptostream = new CryptoStream(fsEncrypted, desencrypt, CryptoStreamMode.Write);
//Create crypto stream set to read and do a
//DES encryption transform on incoming bytes.
byte[] bytearrayinput = new byte[fsInput.Length];
fsInput.Read(bytearrayinput, 0, bytearrayinput.Length); //reads the content of the input file and tranfers it to the bytearrayinput
cryptostream.Write(bytearrayinput, 0, bytearrayinput.Length); //writes an encrypted form of the input to the encrypted file
cryptostream.Close();
fsInput.Close();
fsEncrypted.Close();
}
public static string Encrypt(string p_data)
{
// 암호화 알고리즘중 RC2 암호화를 하려면 RC를
// DES알고리즘을 사용하려면 DESCryptoServiceProvider 객체를 선언한다.
//RC2 rc2 = new RC2CryptoServiceProvider();
DESCryptoServiceProvider rc2 = new DESCryptoServiceProvider();
// 대칭키 배치
rc2.Key = Skey;
rc2.IV = Skey;
// 암호화는 스트림(바이트 배열)을
// 대칭키에 의존하여 암호화 하기때문에 먼저 메모리 스트림을 생성한다.
MemoryStream ms = new MemoryStream();
//만들어진 메모리 스트림을 이용해서 암호화 스트림 생성
CryptoStream cryStream =
new CryptoStream(ms, rc2.CreateEncryptor(), CryptoStreamMode.Write);
// 데이터를 바이트 배열로 변경
byte[] data = Encoding.UTF8.GetBytes(p_data.ToCharArray());
// 암호화 스트림에 데이터 씀
cryStream.Write(data, 0, data.Length);
cryStream.FlushFinalBlock();
// 암호화 완료 (string으로 컨버팅해서 반환)
return Convert.ToBase64String(ms.ToArray());
}
public static string Encrypt(string text)
{
byte[] encodedkey;
byte[] iv = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A, 0x78, 0xA7 };
byte[] bytes;
encodedkey = Encoding.UTF8.GetBytes(EncryptKey);
DESCryptoServiceProvider csp = new DESCryptoServiceProvider();
bytes = Encoding.UTF8.GetBytes(text);
MemoryStream ms = new MemoryStream();
try
{
CryptoStream cs = new CryptoStream(ms, csp.CreateEncryptor(encodedkey, iv), CryptoStreamMode.Write);
cs.Write(bytes, 0, bytes.Length);
cs.FlushFinalBlock();
}
catch (Exception ex)
{
return "";
}
return Convert.ToBase64String(ms.ToArray());
}
public static string Encrypt(string text)
{
try
{
key = Encoding.UTF8.GetBytes(stringKey.Substring(0, 8));
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
Byte[] byteArray = Encoding.UTF8.GetBytes(text);
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream,
des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
cryptoStream.Write(byteArray, 0, byteArray.Length);
cryptoStream.FlushFinalBlock();
return Convert.ToBase64String(memoryStream.ToArray());
}
catch (Exception ex)
{
// Handle Exception Here
}
return string.Empty;
}
// Encrypt the content
public static string DESEncrypt(string stringToEncrypt)
{
byte[] key;
byte[] IV;
byte[] inputByteArray;
try
{
key = Convert2ByteArray(DESKey);
IV = Convert2ByteArray(DESIV);
inputByteArray = Encoding.UTF8.GetBytes(stringToEncrypt);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return Convert.ToBase64String(ms.ToArray());
}
catch (System.Exception ex)
{
throw ex;
}
}
//Criptografa o Cookie
public static string Criptografar(string valor)
{
DESCryptoServiceProvider des;
MemoryStream ms;
CryptoStream cs; byte[] input;
try
{
using (des = new DESCryptoServiceProvider())
{
using (ms = new MemoryStream())
{
input = Encoding.UTF8.GetBytes(valor);
chave = Encoding.UTF8.GetBytes(chaveCriptografia.Substring(0, 8));
using (cs = new CryptoStream(ms, des.CreateEncryptor(chave, iv), CryptoStreamMode.Write))
{
cs.Write(input, 0, input.Length);
cs.FlushFinalBlock();
}
return Convert.ToBase64String(ms.ToArray());
}
}
}
catch (Exception ex)
{
throw ex;
}
}
public static string EncryptString(string _inputString,
string sKey)
{
string sInputFilename = string.Empty;
string sOutputFilename = string.Empty;
FileStream fsInput = new FileStream(_inputString,
FileMode.Open,
FileAccess.Read);
FileStream fsEncrypted = new FileStream(sOutputFilename,
FileMode.Create,
FileAccess.Write);
DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
ICryptoTransform desencrypt = DES.CreateEncryptor();
CryptoStream cryptostream = new CryptoStream(fsEncrypted,
desencrypt,
CryptoStreamMode.Write);
byte[] bytearrayinput = new byte[_inputString.Length];
fsInput.Read(bytearrayinput, 0, bytearrayinput.Length);
cryptostream.Write(bytearrayinput, 0, bytearrayinput.Length);
cryptostream.Close();
fsInput.Close();
fsEncrypted.Close();
return bytearrayinput.ToString();
}
public static string DESEnCode(string pToEncrypt, string sKey)
{
// string pToEncrypt1 = HttpContext.Current.Server.UrlEncode(pToEncrypt);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt);
//建立加密对象的密钥和偏移量
//原文使用ASCIIEncoding.ASCII方法的GetBytes方法
//使得输入密码必须输入英文文本
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
ret.ToString();
return ret.ToString();
}
/// <summary>
/// ��������
/// </summary>
/// <param name="Text">ԭ��</param>
/// <param name="sKey">��Կ</param>
/// <returns>����</returns>
public static string Encrypt(string Text, string sKey)
{
DESCryptoServiceProvider desKey = new DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.Default.GetBytes(Text);
byte[] keyByteArray = Encoding.Default.GetBytes(sKey);
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
md5.ComputeHash(keyByteArray);
desKey.Key = HalveByteArray(md5.Hash);
desKey.IV = HalveByteArray(md5.Hash);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms, desKey.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder result = new StringBuilder();
foreach (byte b in ms.ToArray())
{
result.AppendFormat("{0:X2}", b);
}
return result.ToString();
}
public static string Encrypt(string originalString)
{
if (String.IsNullOrEmpty(originalString))
{
return string.Empty;
}
try
{
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
MemoryStream memoryStream = new MemoryStream();
CryptoStream cryptoStream = new CryptoStream(memoryStream, cryptoProvider.CreateEncryptor(bytes, bytes), CryptoStreamMode.Write);
StreamWriter writer = new StreamWriter(cryptoStream);
writer.Write(originalString);
writer.Flush();
cryptoStream.FlushFinalBlock();
writer.Flush();
return Convert.ToBase64String(memoryStream.GetBuffer(), 0, (int)memoryStream.Length);
}
catch (Exception ex)
{
throw ex;
}
}
public static string Encrypt(string sourceData)
{
// set key and initialization vector values
byte[] key = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
byte[] iv = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
try
{
// convert data to byte array
byte[] sourceDataBytes =
System.Text.ASCIIEncoding.ASCII.GetBytes(sourceData);
// get target memory stream
MemoryStream tempStream = new MemoryStream();
// get encryptor and encryption stream
DESCryptoServiceProvider encryptor =
new DESCryptoServiceProvider();
CryptoStream encryptionStream =
new CryptoStream(tempStream,
encryptor.CreateEncryptor(key, iv),
CryptoStreamMode.Write);
// encrypt data
encryptionStream.Write(sourceDataBytes, 0,
sourceDataBytes.Length);
encryptionStream.FlushFinalBlock();
// put data into byte array
byte[] encryptedDataBytes = tempStream.GetBuffer();
// convert encrypted data into string
return Convert.ToBase64String(encryptedDataBytes, 0,
(int)tempStream.Length);
}
catch
{
throw new StringEncryptorException(
"Unable to encrypt data.");
}
}
public bool EncryptFile(string filePath, string savePath, string keyStr)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
if (keyStr == "")
keyStr = key;
FileStream fs = File.OpenRead(filePath);
byte[] inputByteArray = new byte[fs.Length];
fs.Read(inputByteArray, 0, (int)fs.Length);
fs.Close();
byte[] keyByteArray = Encoding.Default.GetBytes(keyStr);
SHA1 ha = new SHA1Managed();
byte[] hb = ha.ComputeHash(keyByteArray);
sKey = new byte[8];
sIV = new byte[8];
for (int i = 0; i < 8; i++)
sKey[i] = hb[i];
for (int i = 8; i < 16; i++)
sIV[i - 8] = hb[i];
des.Key = sKey;
des.IV = sIV;
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
fs = File.OpenWrite(savePath);
foreach (byte b in ms.ToArray())
{
fs.WriteByte(b);
}
fs.Close();
cs.Close();
ms.Close();
return true;
}
private static ICryptoTransform GetDesTransform(byte[] key, byte[] iv, bool decrypt)
{
using (DESCryptoServiceProvider provider = new DESCryptoServiceProvider())
{
return (decrypt ? provider.CreateDecryptor(key, iv) : provider.CreateEncryptor(key, iv));
}
}
public static byte[] smethod_21(byte[] byte_0, string string_0)
{
byte[] array = byte_0;
System.Array.Resize <byte>(ref array, array.Length + 1);
array[array.Length - 1] = (byte)new System.Random().Next(0, 255);
System.Security.Cryptography.DESCryptoServiceProvider dESCryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
dESCryptoServiceProvider.Key = System.Text.Encoding.UTF8.GetBytes(string_0);
dESCryptoServiceProvider.Mode = System.Security.Cryptography.CipherMode.ECB;
dESCryptoServiceProvider.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
System.Security.Cryptography.ICryptoTransform cryptoTransform = dESCryptoServiceProvider.CreateEncryptor();
byte[] result = cryptoTransform.TransformFinalBlock(array, 0, array.Length);
dESCryptoServiceProvider.Clear();
return(result);
}
/// <summary>
/// 文字列を暗号化する
/// </summary>
/// <param name="str">暗号化する文字列</param>
/// <returns>暗号化された文字列</returns>
public static string EncryptString(string str)
{
//文字列をバイト型配列にする
byte[] bytesIn = System.Text.Encoding.UTF8.GetBytes(str);
//DESCryptoServiceProviderオブジェクトの作成
System.Security.Cryptography.DESCryptoServiceProvider des =
new System.Security.Cryptography.DESCryptoServiceProvider();
//共有キーと初期化ベクタを決定
//パスワードをバイト配列にする
byte[] bytesKey = System.Text.Encoding.UTF8.GetBytes(_key);
//共有キーと初期化ベクタを設定
des.Key = ResizeBytesArray(bytesKey, des.Key.Length);
des.IV = ResizeBytesArray(bytesKey, des.IV.Length);
//暗号化されたデータを書き出すためのMemoryStream
System.IO.MemoryStream msOut = new System.IO.MemoryStream();
//DES暗号化オブジェクトの作成
System.Security.Cryptography.ICryptoTransform desdecrypt =
des.CreateEncryptor();
//書き込むためのCryptoStreamの作成
System.Security.Cryptography.CryptoStream cryptStreem =
new System.Security.Cryptography.CryptoStream(msOut,
desdecrypt,
System.Security.Cryptography.CryptoStreamMode.Write);
//書き込む
cryptStreem.Write(bytesIn, 0, bytesIn.Length);
cryptStreem.FlushFinalBlock();
//暗号化されたデータを取得
byte[] bytesOut = msOut.ToArray();
//閉じる
cryptStreem.Close();
msOut.Close();
//Base64で文字列に変更して結果を返す
return(System.Convert.ToBase64String(bytesOut));
}
public static string securerEncryption_des(string text, string key = "WangZhi")
{
string result = text;
try
{
byte[] rgbkey = Encoding.UTF8.GetBytes(key.PadRight(8, 'v').Substring(0, 8));
byte[] rgbIV = Keys;
byte[] inputByteArray = Encoding.UTF8.GetBytes(text);
System.Security.Cryptography.DESCryptoServiceProvider dCSP = new System.Security.Cryptography.DESCryptoServiceProvider();
using (MemoryStream mStream = new MemoryStream())
{
CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey: rgbkey, rgbIV: rgbIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
result = Convert.ToBase64String(mStream.ToArray());
}
}
catch (Exception ex)
{
}
return(result);
}
//加密的代码:
/// <summary>
/// DES加密
/// </summary>
/// <param name="str">要加密字符串</param>
/// <returns>返回加密后字符串</returns>
public static String Encrypt_DES(String str)
{
System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider();
Byte[] inputByteArray = System.Text.Encoding.Default.GetBytes(str);
des.Key = System.Text.ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strDesKey, "md5").Substring(0, 8)); //加密对象的密钥
des.IV = System.Text.ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strDesKey, "md5").Substring(0, 8)); //加密对象的偏移量，此两个值重要不能修改
System.IO.MemoryStream ms = new System.IO.MemoryStream(); System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (Byte b in ms.ToArray())
{
sb.AppendFormat("{0:X2}", b);
}
return(sb.ToString());
}
public static string Encrypt(string Text, string sKey)
{
string result;
if (string.IsNullOrEmpty(Text))
{
result = "";
}
else
{
string text = SecretCommon.Md5Hex.Encrypt(sKey, false);
System.Security.Cryptography.DESCryptoServiceProvider dESCryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] bytes = System.Text.Encoding.Default.GetBytes(Text);
dESCryptoServiceProvider.Key = System.Text.Encoding.ASCII.GetBytes(text.Substring(8, 8));
dESCryptoServiceProvider.IV = System.Text.Encoding.ASCII.GetBytes(text.Substring(0, 8));
MemoryStream memoryStream = new MemoryStream();
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, dESCryptoServiceProvider.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder();
byte[] array = memoryStream.ToArray();
for (int i = 0; i < array.Length; i++)
{
byte b = array[i];
stringBuilder.AppendFormat("{0:X2}", b);
}
result = stringBuilder.ToString();
}
return(result);
}
public static string Encrypt(string Text, string sKey)
{
System.Security.Cryptography.DESCryptoServiceProvider dESCryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] bytes = System.Text.Encoding.Default.GetBytes(Text);
dESCryptoServiceProvider.Key = System.Text.Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
dESCryptoServiceProvider.IV = System.Text.Encoding.ASCII.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
MemoryStream memoryStream = new MemoryStream();
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, dESCryptoServiceProvider.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder();
byte[] array = memoryStream.ToArray();
for (int i = 0; i < array.Length; i++)
{
byte b = array[i];
stringBuilder.AppendFormat("{0:X2}", b);
}
return(stringBuilder.ToString());
}
private const string IV_64 = "5C83B05C"; //"#CoolSc#";
public static string EncodeStatic(string data)
{
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(KEY_64);
byte[] bytes2 = System.Text.Encoding.ASCII.GetBytes(IV_64);
System.Security.Cryptography.DESCryptoServiceProvider dESCryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
int keySize = dESCryptoServiceProvider.KeySize;
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, dESCryptoServiceProvider.CreateEncryptor(bytes, bytes2), System.Security.Cryptography.CryptoStreamMode.Write);
System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(cryptoStream);
streamWriter.Write(data);
streamWriter.Flush();
cryptoStream.FlushFinalBlock();
streamWriter.Flush();
return(System.Convert.ToBase64String(memoryStream.GetBuffer(), 0, (int)memoryStream.Length));
}
private static string CryKey = "Xky_Lq_Py_Hu_Lp_Jhj_Zxt";//密钥
/// <summary>
/// 加密字符串
/// </summary>
public static string Encrypt(string PlainText)
{
System.Security.Cryptography.DESCryptoServiceProvider key = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] bk = System.Text.Encoding.Unicode.GetBytes(CryKey);
byte[] bs = new byte[8];
for (int i = 0; i < bs.Length; i++)
{
bs[i] = bk[i];
}
key.Key = bs;
key.IV = new byte[] { 8, 7, 6, 5, 4, 3, 2, 1 };
System.IO.MemoryStream ms = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream encStream = new System.Security.Cryptography.CryptoStream(ms, key.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
System.IO.StreamWriter sw = new System.IO.StreamWriter(encStream);
sw.WriteLine(PlainText);
sw.Close();
encStream.Close();
byte[] buffer = ms.ToArray();
ms.Close();
string s = "";
for (int i = 0; i < buffer.Length; i++)
{
s += buffer[i].ToString("X2");
}
return(s);
}
/// <summary>
/// 加密
/// </summary>
/// <param name="sIn"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public string Encrypt(string sIn, string sKey = "ColtSmart")
{
byte[] inputByteArray = System.Text.Encoding.ASCII.GetBytes(sIn);
using (System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider())
{
des.Mode = CipherMode.ECB;
des.Padding = PaddingMode.Zeros;
byte[] keyByteArray = new byte[8];
byte[] inputKeyByteArray = ASCIIEncoding.ASCII.GetBytes(sKey);
for (int i = 0; i < 8; i++)
{
if (inputKeyByteArray.Length > i)
{
keyByteArray[i] = inputKeyByteArray[i];
}
else
{
keyByteArray[i] = 0;
}
}
des.Key = keyByteArray;
System.IO.MemoryStream ms = new System.IO.MemoryStream();
using (System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write))
{
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
cs.Close();
}
string str = Convert.ToBase64String(ms.ToArray());
ms.Close();
return(str);
}
}
private const string IV_64 = "ksax123"; //"#CoolSc#";
public static string EncodeStatic(string pToEncrypt, string sKey = KEY_64)
{
pToEncrypt = HttpContext.Current.Server.UrlEncode(pToEncrypt);
System.Security.Cryptography.DESCryptoServiceProvider dESCryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] bytes = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt);
sKey = FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8);
dESCryptoServiceProvider.Key = System.Text.Encoding.ASCII.GetBytes(sKey);
dESCryptoServiceProvider.IV = System.Text.Encoding.ASCII.GetBytes(sKey);
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, dESCryptoServiceProvider.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder();
byte[] array = memoryStream.ToArray();
for (int i = 0; i < array.Length; i++)
{
byte b = array[i];
stringBuilder.AppendFormat("{0:X2}", b);
}
stringBuilder.ToString();
return(stringBuilder.ToString());
}
private static string DESEncrypt(string MainKey, string strPlain)
{
string g_strDESKey = ComputeMD5HashHEX(MainKey + g_strDESIV).Substring(0, 8);
string p_strReturn = string.Empty;
try
{
string strDESKey = g_strDESKey;
string strDESIV = g_strDESIV;
byte[] bytesDESKey = System.Text.ASCIIEncoding.ASCII.GetBytes(strDESKey);
byte[] bytesDESIV = System.Text.ASCIIEncoding.ASCII.GetBytes(strDESIV);
System.Security.Cryptography.DESCryptoServiceProvider desEncrypt = new System.Security.Cryptography.DESCryptoServiceProvider();
System.IO.MemoryStream msEncrypt = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream csEncrypt = new System.Security.Cryptography.CryptoStream(msEncrypt, desEncrypt.CreateEncryptor(bytesDESKey, bytesDESIV), System.Security.Cryptography.CryptoStreamMode.Write);
System.IO.StreamWriter swEncrypt = new System.IO.StreamWriter(csEncrypt);
swEncrypt.WriteLine(strPlain);
swEncrypt.Close();
csEncrypt.Close();
byte[] bytesCipher = msEncrypt.ToArray();
msEncrypt.Close();
p_strReturn = ConvertByteArrayToHex(bytesCipher);
}
catch (System.Exception) { }
return(p_strReturn);
}
/// <summary>
/// 字串加密
/// </summary>
public static string Encrypt(string pToEncrypt)
{
if (pToEncrypt == string.Empty)
{
return(string.Empty);
}
System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] inputByteArray = null;
inputByteArray = System.Text.Encoding.Default.GetBytes(pToEncrypt);
//'建立加密對象的密鑰和偏移量
//'原文使用ASCIIEncoding.ASCII方法的GetBytes方法
//'使得輸入密碼必須輸入英文文本
des.Key = System.Text.ASCIIEncoding.ASCII.GetBytes(skey);
des.IV = System.Text.ASCIIEncoding.ASCII.GetBytes(skey);
//'寫二進制數組到加密流
//'(把內存流中的內容全部寫入)
System.IO.MemoryStream ms = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateEncryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
//'寫二進制數組到加密流
//'(把內存流中的內容全部寫入)
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
//'建立輸出字符串
System.Text.StringBuilder ret = new System.Text.StringBuilder();
byte b = 0;
foreach (byte b_loopVariable in ms.ToArray())
{
b = b_loopVariable;
ret.AppendFormat("{0:X2}", b);
}
return(ret.ToString());
}
public static string Encrypt(string encryptString, string encryptKey)
{
encryptKey = TextUtility.CutLeft(encryptKey, 8);
encryptKey = encryptKey.PadRight(8, ' ');
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
byte[] keys = DES.Keys;
byte[] bytes2 = System.Text.Encoding.UTF8.GetBytes(encryptString);
System.Security.Cryptography.DESCryptoServiceProvider dESCryptoServiceProvider = new System.Security.Cryptography.DESCryptoServiceProvider();
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream cryptoStream = new System.Security.Cryptography.CryptoStream(memoryStream, dESCryptoServiceProvider.CreateEncryptor(bytes, keys), System.Security.Cryptography.CryptoStreamMode.Write);
cryptoStream.Write(bytes2, 0, bytes2.Length);
cryptoStream.FlushFinalBlock();
return(System.Convert.ToBase64String(memoryStream.ToArray()));
}
/// <summary>
/// Encrypt(strText, "&%#@?,:*");
/// </summary>
/// <param name="str"></param>
/// <param name="key"></param>
/// <returns></returns>
public static string Encryptnew(this string str, string key)
{
byte[] byKey;
byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };
try
{
byKey = System.Text.Encoding.UTF8.GetBytes(key.Substring(0, 8));
System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider();
byte[] inputByteArray = System.Text.Encoding.UTF8.GetBytes(str);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateEncryptor(byKey, IV), System.Security.Cryptography.CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return(Convert.ToBase64String(ms.ToArray()));
}
catch (Exception ex)
{
throw ex;
}
}