/// <summary>
/// <para>Encrypts bytes with the initialized algorithm and key.</para>
/// </summary>
/// <param name="plaintext"><para>The plaintext in which you wish to encrypt.</para></param>
/// <returns><para>The resulting ciphertext.</para></returns>
/// <remarks>
/// <para>If no encryption is defined, the bytes passed in are returned.</para>
/// </remarks>
public byte[] Encrypt(byte[] plaintext)
{
if (encrypted)
{
SymmetricCryptographer crypt = new SymmetricCryptographer(keyAlgorithmPair.AlgorithmTypeName, keyAlgorithmPair.Key);
return crypt.Encrypt(plaintext);
}
return plaintext;
}
private string EncryptKey(byte[] key, string passphrase)
{
byte[] output = null;
byte[] passphraseBytes = GetPassphraseBytes(passphrase);
using (SymmetricAlgorithm algorithm = RijndaelManaged.Create())
{
SymmetricCryptographer crypto = new SymmetricCryptographer(algorithm, passphraseBytes);
byte[] encryptedKey = crypto.Encrypt(key);
output = AppendPasswordHash(encryptedKey, passphraseBytes, PasswordProtectedFlag);
}
return Convert.ToBase64String(output);
}
