/// <summary>
/// Encrypt a Business Object
/// </summary>
/// <param name="plainObject">unencrypted Business Object</param>
/// <param name="associatedDataString">max. 16 character long string (not secret)</param>
/// <returns>an encrypted Business Object</returns>
public EncryptedObjectAEAD Encrypt(BusinessObject plainObject, string associatedDataString)
{
var plainText = JsonConvert.SerializeObject(plainObject, encryptionSerializerSettings);
var nonce = SecretAeadChaCha20Poly1305.GenerateNonce();
var cipherString = Encrypt(plainText, associatedDataString, nonce);
return(new EncryptedObjectAEAD(cipherString, associatedDataString, Convert.ToBase64String(nonce)));
}
/// <summary>
/// Encrypt a given plain text and add associated data.
/// </summary>
/// <param name="plainText">UTF-8 encoded string containing the plain text to be encrypted</param>
/// <param name="associatedDataString">max. 16 character long string (not secret)</param>
/// <returns>Tuple of (cipherText, nonce); both as base64 encoded string</returns>
public (string, string) Encrypt(string plainText, string associatedDataString)
{
byte[] nonce = SecretAeadChaCha20Poly1305.GenerateNonce();
return(Encrypt(plainText, associatedDataString, nonce), Convert.ToBase64String(nonce));
}
