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| byte[] Encrypt(byte[] toEncode)
{
// Create a memory stream.
MemoryStream ms = new MemoryStream();
// Create a CryptoStream using the memory stream and the
// CSP DES key.
CryptoStream encStream = new CryptoStream(ms, DESCryptoServiceProvider.Create().CreateEncryptor(), CryptoStreamMode.Write);
// Create a StreamWriter to write a string
encStream.Write(toEncode, 0, toEncode.Length);
// Close the StreamWriter and CryptoStream.
encStream.Close();
// Get an array of bytes that represents
// the memory stream.
byte[] buffer = ms.ToArray();
// Close the memory stream.
ms.Close();
// Return the encrypted byte array.
return buffer;
}
byte[] Decrypt(byte[] toDecode)
{
// Create a memory stream to the passed buffer.
MemoryStream ms = new MemoryStream(toDecode);
Byte[] decode = new Byte[ms.ToArray().Length];
// Create a CryptoStream using the memory stream and the
// CSP DES key.
CryptoStream encStream = new CryptoStream(ms, DESCryptoServiceProvider.Create().CreateDecryptor(), CryptoStreamMode.Read);
encStream.Read(decode, 0, ms.ToArray().Length);
// Close the streams.
encStream.Close();
ms.Close();
return decode;
} |
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