public Stream Decrypt(EncryptedStream cipherStream)
{
byte[] cipherBytes = cipherStream.GetBytes();
byte[] iv = cipherStream.Iv;
byte[] clearBytes = ProtectedData.Unprotect(cipherBytes, iv, DataProtectionScope.LocalMachine);
return new MemoryStream(clearBytes);
}
public Stream Decrypt(EncryptedStream cipherStream)
{
byte[] cipherBytes = cipherStream.GetBytes();
byte[] iv = cipherStream.Iv;
byte[] clearBytes = ProtectedData.Unprotect(cipherBytes, iv, DataProtectionScope.LocalMachine);
return(new MemoryStream(clearBytes));
}
public EncryptedStream Encrypt(Stream clearStream)
{
byte[] clearBytes = clearStream.ReadToEnd();
byte[] iv = GenerateIv();
byte[] cipherBytes = ProtectedData.Protect(clearBytes, iv, DataProtectionScope.LocalMachine);
var result = new EncryptedStream(cipherBytes, iv);
return result;
}
public EncryptedStream Encrypt(Stream clearStream)
{
byte[] clearBytes = clearStream.ReadToEnd();
byte[] iv = GenerateIv();
byte[] cipherBytes = ProtectedData.Protect(clearBytes, iv, DataProtectionScope.LocalMachine);
var result = new EncryptedStream(cipherBytes, iv);
return(result);
}
public Stream Decrypt(EncryptedStream cipherStream)
{
_cipher.IV = cipherStream.Iv;
using (ICryptoTransform transform = _cipher.CreateDecryptor())
{
byte[] cipherBytes = cipherStream.GetBytes();
byte[] clearBytes = transform.TransformFinalBlock(cipherBytes, 0, cipherBytes.Length);
return(new MemoryStream(clearBytes));
}
}
public Stream Decrypt(EncryptedStream cipherStream)
{
_cipher.IV = cipherStream.Iv;
using (ICryptoTransform transform = _cipher.CreateDecryptor())
{
byte[] cipherBytes = cipherStream.GetBytes();
byte[] clearBytes = transform.TransformFinalBlock(cipherBytes, 0, cipherBytes.Length);
return new MemoryStream(clearBytes);
}
}