public string GenerateAddress(Wallet wallet)
{
if (wallet.Secret == null || wallet.Secret.Length == 0)
{
wallet.Secret = _secrets.GenerateSecret(wallet);
}
// Generate next seed based on the first secret or a new secret from the last key pair
var lastKeyPair = wallet.KeyPairs.LastOrDefault();
var seed = lastKeyPair == null
? wallet.Secret
: PasswordUtil.FastHash(
Encoding.UTF8.GetString(lastKeyPair.PrivateKey),
Constants.DefaultFixedSalt16);
var keyPair = Ed25519.GenerateKeyPairFromSecret(seed);
var newKeyPair = new KeyPair(
wallet.KeyPairs.Count + 1,
keyPair.Item1,
keyPair.Item2
);
wallet.KeyPairs.Add(newKeyPair);
return(newKeyPair.PublicKey.ToHex());
}
public byte[] GenerateSecret(params object[] args)
{
var wallet = args.FirstOrDefault() as Wallet;
Contract.Assert(wallet != null);
Contract.Assert(!string.IsNullOrWhiteSpace(wallet.PasswordHash));
wallet.Secret = PasswordUtil.FastHash(wallet.PasswordHash, "salt");
return(wallet.Secret);
}