protected override IEnumerable <WalletKeyPairBase> LoadKeyPairs()
{
using (WalletDataContext ctx = new WalletDataContext(DbPath))
{
foreach (Account item in ctx.Accounts.Select(p => p))
{
if ((KeyType)item.nVersion == KeyType.Anonymous || (KeyType)item.nVersion == KeyType.Transparent)
{
byte[] decryptedPrivateKey = DecryptPrivateKey(item.PrivateKeyEncrypted);
WalletKeyPair account = new WalletKeyPair(decryptedPrivateKey, (KeyType)item.nVersion);
Array.Clear(decryptedPrivateKey, 0, decryptedPrivateKey.Length);
yield return(account);
}
else if ((KeyType)item.nVersion == KeyType.Stealth)
{
byte[] decryptedPrivateKey = DecryptPrivateKey(item.PrivateKeyEncrypted);
byte[] decryptedViewKey = DecryptPrivateKey(item.PrivateViewKeyEncrypted);
StealthKeyPair account = new StealthKeyPair(decryptedPrivateKey, decryptedViewKey);
Array.Clear(decryptedPrivateKey, 0, decryptedPrivateKey.Length);
Array.Clear(decryptedViewKey, 0, decryptedViewKey.Length);
yield return(account);
}
}
}
}
public override StealthKeyPair CreateKey(byte[] payloadPrivKey, byte[] viewPrivKey)
{
StealthKeyPair account = base.CreateKey(payloadPrivKey, viewPrivKey);
OnCreateAccount(account);
AddContract(VerificationContract.CreateRingSignatureContract(account.ToStelathPubKeys()));
return(account);
}
private void OnCreateAccount(StealthKeyPair account)
{
byte[] decryptedPayloadPrivKey = new byte[96];
Buffer.BlockCopy(account.PayloadPubKey.EncodePoint(false), 1, decryptedPayloadPrivKey, 0, 64);
using (account.DecryptPayloadKey())
{
Buffer.BlockCopy(account.PayloadPrivKey, 0, decryptedPayloadPrivKey, 64, 32);
}
byte[] encryptedPayloadPrivKey = EncryptPrivateKey(decryptedPayloadPrivKey);
Array.Clear(decryptedPayloadPrivKey, 0, decryptedPayloadPrivKey.Length);
byte[] decryptedViewPrivKey = new byte[96];
Buffer.BlockCopy(account.ViewPubKey.EncodePoint(false), 1, decryptedViewPrivKey, 0, 64);
using (account.DecryptViewKey())
{
Buffer.BlockCopy(account.ViewPrivKey, 0, decryptedViewPrivKey, 64, 32);
}
byte[] encryptedViewPrivKey = EncryptPrivateKey(decryptedViewPrivKey);
Array.Clear(decryptedViewPrivKey, 0, decryptedViewPrivKey.Length);
using (WalletDataContext ctx = new WalletDataContext(DbPath))
{
Account db_account = ctx.Accounts.FirstOrDefault(p => p.PublicKeyHash.SequenceEqual(account.PublicKeyHash.ToArray()));
if (db_account == null)
{
db_account = ctx.Accounts.Add(new Account
{
nVersion = (int)account.nVersion,
PrivateKeyEncrypted = encryptedPayloadPrivKey,
PublicKeyHash = account.PublicKeyHash.ToArray(),
PrivateViewKeyEncrypted = encryptedViewPrivKey
}).Entity;
}
else
{
db_account.nVersion = (int)account.nVersion;
db_account.PrivateKeyEncrypted = encryptedPayloadPrivKey;
db_account.PrivateViewKeyEncrypted = encryptedViewPrivKey;
}
try
{
ctx.SaveChanges();
}
catch (Exception ex)
{
string str = ex.Message;
}
}
}