/// <summary>
/// Gets the extended private key for the given address.
/// </summary>
/// <param name="password">The password used to encrypt/decrypt sensitive info.</param>
/// <param name="address">The address to get the private key for.</param>
/// <returns>The extended private key.</returns>
public ISecret GetExtendedPrivateKeyForAddress(string password, HdAddress address)
{
Guard.NotEmpty(password, nameof(password));
Guard.NotNull(address, nameof(address));
// Check if the wallet contains the address.
if (!this.ContainsAddress(address))
{
throw new WalletException("Address not found on wallet.");
}
// get extended private key
Key privateKey = HdOperations.DecryptSeed(this.EncryptedSeed, password, this.Network);
return(HdOperations.GetExtendedPrivateKey(privateKey, this.ChainCode, address.HdPath, this.Network));
}
/// <summary>
/// Adds an account to the current account root.
/// </summary>
/// <remarks>The name given to the account is of the form "account (i)" by default, where (i) is an incremental index starting at 0.
/// According to BIP44, an account at index (i) can only be created when the account at index (i - 1) contains transactions.
/// <seealso cref="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki"/></remarks>
/// <param name="password">The password used to decrypt the wallet's encrypted seed.</param>
/// <param name="encryptedSeed">The encrypted private key for this wallet.</param>
/// <param name="chainCode">The chain code for this wallet.</param>
/// <param name="network">The network for which this account will be created.</param>
/// <param name="accountCreationTime">Creation time of the account to be created.</param>
/// <returns>A new HD account.</returns>
public HdAccount AddNewAccount(string password, string encryptedSeed, byte[] chainCode, Network network, DateTimeOffset accountCreationTime)
{
Guard.NotEmpty(password, nameof(password));
Guard.NotEmpty(encryptedSeed, nameof(encryptedSeed));
Guard.NotNull(chainCode, nameof(chainCode));
// Get the current collection of accounts.
var accounts = this.Accounts.ToList();
int newAccountIndex = 0;
if (accounts.Any())
{
newAccountIndex = accounts.Max(a => a.Index) + 1;
}
// Get the extended pub key used to generate addresses for this account.
string accountHdPath = HdOperations.GetAccountHdPath((int)this.CoinType, newAccountIndex);
Key privateKey = HdOperations.DecryptSeed(encryptedSeed, password, network);
ExtPubKey accountExtPubKey = HdOperations.GetExtendedPublicKey(privateKey, chainCode, accountHdPath);
var newAccount = new HdAccount
{
Index = newAccountIndex,
ExtendedPubKey = accountExtPubKey.ToString(network),
ExternalAddresses = new List <HdAddress>(),
InternalAddresses = new List <HdAddress>(),
Name = $"account {newAccountIndex}",
HdPath = accountHdPath,
CreationTime = accountCreationTime
};
accounts.Add(newAccount);
this.Accounts = accounts;
return(newAccount);
}
