Nethereum/src/Nethereum.KeyStore/KeyStoreScryptService.cs at master · Nethereum/Nethereum · GitHub

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using System;

using Nethereum.Hex.HexConvertors.Extensions;

using Nethereum.KeyStore.Crypto;

using Nethereum.KeyStore.JsonDeserialisation;

using Nethereum.KeyStore.Model;

namespace Nethereum.KeyStore

{

public class KeyStoreScryptService : KeyStoreServiceBase<ScryptParams>

{

public const string KdfType = "scrypt";

public KeyStoreScryptService()

{

}

public KeyStoreScryptService(IRandomBytesGenerator randomBytesGenerator, KeyStoreCrypto keyStoreCrypto) : base(

randomBytesGenerator, keyStoreCrypto)

{

}

public KeyStoreScryptService(IRandomBytesGenerator randomBytesGenerator) : base(randomBytesGenerator)

{

}

protected override byte[] GenerateDerivedKey(string password, byte[] salt, ScryptParams kdfParams)

{

return KeyStoreCrypto.GenerateDerivedScryptKey(KeyStoreCrypto.GetPasswordAsBytes(password), salt,

kdfParams.N, kdfParams.R,

kdfParams.P, kdfParams.Dklen);

}

protected override ScryptParams GetDefaultParams()

{

return new ScryptParams {Dklen = 32, N = 262144, R = 1, P = 8};

}

public override KeyStore<ScryptParams> DeserializeKeyStoreFromJson(string json)

{

return JsonKeyStoreScryptSerialiser.DeserialiseScrypt(json);

}

public override string SerializeKeyStoreToJson(KeyStore<ScryptParams> keyStore)

{

return JsonKeyStoreScryptSerialiser.SerialiseScrypt(keyStore);

}

public override string GetKdfType()

{

return KdfType;

}

protected override byte[] DecryptFromCryptoInfo(string password, CryptoInfo<ScryptParams> cryptoInfo)

{

if (password == null) throw new ArgumentNullException(nameof(password));

if (cryptoInfo == null) throw new ArgumentNullException(nameof(cryptoInfo));

return KeyStoreCrypto.DecryptScrypt(password, cryptoInfo.Mac.HexToByteArray(),

cryptoInfo.CipherParams.Iv.HexToByteArray(),

cryptoInfo.CipherText.HexToByteArray(),

cryptoInfo.Kdfparams.N,

cryptoInfo.Kdfparams.P,

cryptoInfo.Kdfparams.R,

cryptoInfo.Kdfparams.Salt.HexToByteArray(),

cryptoInfo.Kdfparams.Dklen);

}

Nethereum/src/Nethereum.KeyStore/KeyStoreScryptService.cs at master · Nethereum/Nethereum · GitHub

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