public KeyStore <T> EncryptAndGenerateKeyStore(string password, byte[] privateKey, string address, T kdfParams)
{
if (password == null)
{
throw new ArgumentNullException(nameof(password));
}
if (privateKey == null)
{
throw new ArgumentNullException(nameof(privateKey));
}
if (address == null)
{
throw new ArgumentNullException(nameof(address));
}
if (kdfParams == null)
{
throw new ArgumentNullException(nameof(kdfParams));
}
if (privateKey.Length != 32)
{
//Validate length unsigned but store the parameter
//if is less than 32 already will fail
var keyValidation = BigIntegers.AsUnsignedByteArray(new BigInteger(privateKey));
if (keyValidation.Length != 32)
{
throw new ArgumentException("Private key should be 32 bytes", nameof(privateKey));
}
}
var salt = RandomBytesGenerator.GenerateRandomSalt();
var derivedKey = GenerateDerivedKey(password, salt, kdfParams);
var cipherKey = KeyStoreCrypto.GenerateCipherKey(derivedKey);
var iv = RandomBytesGenerator.GenerateRandomInitialisationVector();
var cipherText = GenerateCipher(privateKey, iv, cipherKey);
var mac = KeyStoreCrypto.GenerateMac(derivedKey, cipherText);
var cryptoInfo = new CryptoInfo <T>(GetCipherType(), cipherText, iv, mac, salt, kdfParams, GetKdfType());
var keyStore = new KeyStore <T>
{
Version = CurrentVersion,
Address = address,
Id = Guid.NewGuid().ToString(),
Crypto = cryptoInfo
};
return(keyStore);
}
public void ShouldGenerateCipherText()
{
var derivedKey = "f06d69cdc7da0faffb1008270bca38f5e31891a3a773950e6d0fea48a7188551".HexToByteArray();
var privateKey = "7a28b5ba57c53603b0b07b56bba752f7784bf506fa95edc395f5cf6c7514fe9d".HexToByteArray();
byte[] cypherKey = keyStoreCrypto.GenerateCipherKey(derivedKey);
Assert.Equal("f06d69cdc7da0faffb1008270bca38f5", cypherKey.ToHex());
byte[] iv = "6087dab2f9fdbbfaddc31a909735c1e6".HexToByteArray();
var result = keyStoreCrypto.GenerateAesCtrCipher(iv, cypherKey, privateKey);
Assert.Equal("5318b4d5bcd28de64ee5559e671353e16f075ecae9f99c7a79a38af5f869aa46", result.ToHex());
}
public KeyStore <T> EncryptAndGenerateKeyStore(string password, byte[] privateKey, string address, T kdfParams)
{
if (password == null)
{
throw new ArgumentNullException(nameof(password));
}
if (privateKey == null)
{
throw new ArgumentNullException(nameof(privateKey));
}
if (address == null)
{
throw new ArgumentNullException(nameof(address));
}
if (kdfParams == null)
{
throw new ArgumentNullException(nameof(kdfParams));
}
if (privateKey.Length != 32)
{
throw new ArgumentException("Private key should be 32 bytes", nameof(privateKey));
}
var salt = RandomBytesGenerator.GenerateRandomSalt();
var derivedKey = GenerateDerivedKey(KeyStoreCrypto.GetPasswordAsBytes(password), salt, kdfParams);
var cipherKey = KeyStoreCrypto.GenerateCipherKey(derivedKey);
var iv = RandomBytesGenerator.GenerateRandomInitialisationVector();
var cipherText = GenerateCipher(privateKey, iv, cipherKey);
var mac = KeyStoreCrypto.GenerateMac(derivedKey, cipherText);
var cryptoInfo = new CryptoInfo <T>(GetCipherType(), cipherText, iv, mac, salt, kdfParams, GetKdfType());
var keyStore = new KeyStore <T>
{
Version = CurrentVersion,
Address = address,
Id = Guid.NewGuid().ToString(),
Crypto = cryptoInfo
};
return(keyStore);
}