private bool RestoreWallet(string path, string password, out EcdsaKeyPair keyPair, out byte[] hubKey)
{
var encryptedContent = File.ReadAllBytes(path);
var key = Encoding.UTF8.GetBytes(password).KeccakBytes();
var decryptedContent =
Encoding.UTF8.GetString(Crypto.AesGcmDecrypt(key, encryptedContent));
var wallet = JsonConvert.DeserializeObject <JsonWallet>(decryptedContent);
if (wallet.EcdsaPrivateKey is null)
{
throw new Exception("Decrypted wallet does not contain ECDSA key");
}
var needsSave = false;
if (wallet.HubPrivateKey is null)
{
wallet.HubPrivateKey = GenerateHubKey().PrivateKey;
needsSave = true;
}
wallet.ThresholdSignatureKeys ??= new Dictionary <ulong, string>();
wallet.TpkePrivateKeys ??= new Dictionary <ulong, string>();
keyPair = new EcdsaKeyPair(wallet.EcdsaPrivateKey.HexToBytes().ToPrivateKey());
hubKey = wallet.HubPrivateKey.HexToBytes();
_tpkeKeys.AddAll(wallet.TpkePrivateKeys
.Select(p =>
new C5.KeyValuePair <ulong, PrivateKey>(p.Key, PrivateKey.FromBytes(p.Value.HexToBytes()))));
_tsKeys.AddAll(wallet.ThresholdSignatureKeys
.Select(p =>
new C5.KeyValuePair <ulong, PrivateKeyShare>(p.Key,
PrivateKeyShare.FromBytes(p.Value.HexToBytes()))));
return(needsSave);
}