public Result StoreKey(PrivateKey key, SecureString password)
{
var salt = _cryptoRandom.GenerateRandomBytes(32);
var passBytes = password.ToByteArray(_keyStoreEncoding);
var derivedKey = SCrypt.ComputeDerivedKey(passBytes, salt, _config.KdfparamsN, _config.KdfparamsR, _config.KdfparamsP, null, _config.KdfparamsDklen);
var encryptKey = Keccak.Compute(derivedKey.Take(16).ToArray()).Bytes.Take(16).ToArray();
var encryptContent = key.KeyBytes;
var iv = _cryptoRandom.GenerateRandomBytes(_config.IVSize);
var cipher = _symmetricEncrypter.Encrypt(encryptContent, encryptKey, iv, _config.Cipher);
if (cipher == null)
{
return(Result.Fail("Error during encryption"));
}
var mac = Keccak.Compute(derivedKey.Skip(_config.KdfparamsDklen - 16).Take(16).Concat(cipher).ToArray()).Bytes;
var address = key.Address.ToString();
var keyStoreItem = new KeyStoreItem
{
Address = address,
Crypto = new Crypto
{
Cipher = _config.Cipher,
CipherText = cipher.ToHexString(true),
CipherParams = new CipherParams
{
IV = iv.ToHexString(true)
},
KDF = _config.Kdf,
KDFParams = new KdfParams
{
DkLen = _config.KdfparamsDklen,
N = _config.KdfparamsN,
P = _config.KdfparamsP,
R = _config.KdfparamsR,
Salt = salt.ToHexString(true)
},
MAC = mac.ToHexString(true),
Version = CryptoVersion
},
Id = address,
Version = Version
};
var serializedKey = _jsonSerializer.Serialize(keyStoreItem);
if (serializedKey == null)
{
return(Result.Fail("Error during key serialization"));
}
return(PersistKey(address, serializedKey));
}
public Result StoreKey(PrivateKey key, SecureString password)
{
if (!password.IsReadOnly())
{
throw new InvalidOperationException("Cannot work with password that is not readonly");
}
var salt = _cryptoRandom.GenerateRandomBytes(32);
var passBytes = password.ToByteArray(_keyStoreEncoding);
var derivedKey = SCrypt.ComputeDerivedKey(passBytes, salt, _config.KdfparamsN, _config.KdfparamsR, _config.KdfparamsP, null, _config.KdfparamsDklen);
var encryptKey = Keccak.Compute(derivedKey.Take(16).ToArray()).Bytes.Take(16).ToArray();
var encryptContent = key.KeyBytes;
var iv = _cryptoRandom.GenerateRandomBytes(_config.IVSize);
var cipher = _symmetricEncrypter.Encrypt(encryptContent, encryptKey, iv, _config.Cipher);
if (cipher == null)
{
return(Result.Fail("Error during encryption"));
}
var mac = Keccak.Compute(derivedKey.Skip(_config.KdfparamsDklen - 16).Take(16).Concat(cipher).ToArray()).Bytes;
string addressString = key.Address.ToString(false, false);
var keyStoreItem = new KeyStoreItem
{
Address = addressString,
Crypto = new Crypto
{
Cipher = _config.Cipher,
CipherText = cipher.ToHexString(false),
CipherParams = new CipherParams
{
IV = iv.ToHexString(false)
},
KDF = _config.Kdf,
KDFParams = new KdfParams
{
DkLen = _config.KdfparamsDklen,
N = _config.KdfparamsN,
P = _config.KdfparamsP,
R = _config.KdfparamsR,
Salt = salt.ToHexString(false)
},
MAC = mac.ToHexString(false),
},
Id = addressString,
Version = Version
};
return(StoreKey(key.Address, keyStoreItem));
}