public static byte[] Encrypt(byte[] buffer, ICryptoTransform encryptor)
{
buffer.ThrowIfNull("buffer");
encryptor.ThrowIfNull("encryptor");
var originalSize = buffer.Length;
var stream = new MemoryStream(BitConverter.GetBytes(originalSize).Concat(buffer).ToArray());
// Encrypt the compressed memory stream into the encrypted memory stream.
MemoryStream encrypted = new MemoryStream();
using (var cryptor = new CryptoStream(encrypted, encryptor, CryptoStreamMode.Write))
{
// Write the stream to the encrypted memory stream.
cryptor.Write(stream.ToArray(), 0, (int)stream.Length);
cryptor.FlushFinalBlock();
}
return encrypted.ToArray();
}
public static byte[] Encrypt(byte[] buffer, ICryptoTransform encryptor)
{
buffer.ThrowIfNull("buffer");
encryptor.ThrowIfNull("encryptor");
var originalSize = buffer.Length;
var stream = new MemoryStream(BitConverter.GetBytes(originalSize).Concat(buffer).ToArray());
// Encrypt the compressed memory stream into the encrypted memory stream.
var encrypted = new MemoryStream();
using (var cryptor = new CryptoStream(encrypted, encryptor, CryptoStreamMode.Write))
{
// Write the stream to the encrypted memory stream.
cryptor.Write(stream.ToArray(), 0, (int)stream.Length);
cryptor.FlushFinalBlock();
}
return(encrypted.ToArray());
}
public static byte[] Decrypt(byte[] buffer, ICryptoTransform decryptor)
{
buffer.ThrowIfNull("buffer");
decryptor.ThrowIfNull("decryptor");
// Create the array that holds the result.
byte[] decrypted = new byte[buffer.Length];
// Create the crypto stream that is used for decrypt. The first argument holds the input as memory stream.
using (var cryptor = new CryptoStream(new MemoryStream(buffer), decryptor, CryptoStreamMode.Read))
{
// Read the encrypted values into the decrypted stream. Decrypts the content.
cryptor.Read(decrypted, 0, decrypted.Length);
}
buffer = decrypted;
int originalSize = BitConverter.ToInt32(buffer.Take(4).ToArray(), 0);
buffer = buffer.Skip(4).Take(originalSize).ToArray();
return buffer;
}
public static byte[] Decrypt(byte[] buffer, ICryptoTransform decryptor)
{
buffer.ThrowIfNull("buffer");
decryptor.ThrowIfNull("decryptor");
// Create the array that holds the result.
var decrypted = new byte[buffer.Length];
// Create the crypto stream that is used for decrypt. The first argument holds the input as memory stream.
using (var cryptor = new CryptoStream(new MemoryStream(buffer), decryptor, CryptoStreamMode.Read))
{
// Read the encrypted values into the decrypted stream. Decrypts the content.
cryptor.Read(decrypted, 0, decrypted.Length);
}
buffer = decrypted;
int originalSize = BitConverter.ToInt32(buffer.Take(4).ToArray(), 0);
buffer = buffer.Skip(4).Take(originalSize).ToArray();
return(buffer);
}
