private Message Decrypt(SecureMessageContainer container)
{
Message msg = null;
RijndaelManaged rmCrypto = new RijndaelManaged();
byte[] key = KeyProvider.Decrypt(Convert.FromBase64String(container.EncryptedKey));
byte[] iv = KeyProvider.Decrypt(Convert.FromBase64String(container.EncryptedIV));
using (MemoryStream encrypted = new MemoryStream(Convert.FromBase64String(container.EncryptedData)))
using (CryptoStream cs = new CryptoStream(encrypted, rmCrypto.CreateDecryptor(key, iv), CryptoStreamMode.Read))
{
byte[] buffer = new byte[encrypted.Length];
int bytesRead = cs.Read(buffer, 0, (int)encrypted.Length);
using (MemoryStream decrypted = new MemoryStream(bytesRead))
{
decrypted.Write(buffer, 0, bytesRead);
decrypted.Position = 0;
DataContractSerializer serializer = new DataContractSerializer(typeof(Message));
msg = (Message)serializer.ReadObject(decrypted);
}
}
return(msg);
}
