public static Payload MakePayload(PayloadType type, string replyToId, byte[] data, string messageId)
{
var payload = new Payload {
Type = type, Data = data
};
if (!string.IsNullOrWhiteSpace(replyToId))
{
payload.ReplyToId = replyToId.FromHexString();
}
else if (!string.IsNullOrWhiteSpace(messageId))
{
payload.MessageId = messageId.FromHexString();
}
else
{
payload.MessageId = PseudoRandom.RandomBytes(Constants.MessageIdLength);
}
return(payload);
}
private IList <MessagePayload> EncryptPayloadMany(byte[] payload, IList <string> destinations)
{
var nonce = PseudoRandom.RandomBytes(Hash.NonceLength);
var key = PseudoRandom.RandomBytes(Hash.KeyLength);
var encryptedPayload = Hash.EncryptSymmetric(payload, nonce, key);
var result = new List <MessagePayload>();
for (int i = 0; i < destinations.Count; i++)
{
var publicKey = Common.Address.AddressToPublicKey(destinations[i]);
var encryptedKey = this.Key.Encrypt(key, publicKey);
var mergedNonce = encryptedKey.Nonce.Concat(nonce).ToArray();
var message = MessageFactory.MakeMessage(encryptedPayload, true, mergedNonce, encryptedKey.Message);
result.Add(message);
}
return(result);
}