54 lines
1.9 KiB
C#
54 lines
1.9 KiB
C#
using Bit.Core.Abstractions;
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using Bit.Core.Enums;
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Digests;
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using Org.BouncyCastle.Crypto.Generators;
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using Org.BouncyCastle.Crypto.Parameters;
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using System;
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using System.Runtime.InteropServices;
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using Java.Lang;
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namespace Bit.Droid.Services
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{
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public class CryptoPrimitiveService : ICryptoPrimitiveService
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{
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public byte[] Pbkdf2(byte[] password, byte[] salt, CryptoHashAlgorithm algorithm, int iterations)
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{
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int keySize = 256;
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IDigest digest = null;
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if (algorithm == CryptoHashAlgorithm.Sha256)
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{
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keySize = 256;
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digest = new Sha256Digest();
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}
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else if (algorithm == CryptoHashAlgorithm.Sha512)
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{
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keySize = 512;
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digest = new Sha512Digest();
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}
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else
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{
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throw new ArgumentException("Unsupported PBKDF2 algorithm.");
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}
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var generator = new Pkcs5S2ParametersGenerator(digest);
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generator.Init(password, salt, iterations);
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return ((KeyParameter)generator.GenerateDerivedMacParameters(keySize)).GetKey();
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}
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public byte[] Argon2id(byte[] password, byte[] salt, int iterations, int memory, int parallelism)
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{
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JavaSystem.LoadLibrary("argon2");
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int keySize = 32;
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var key = new byte[keySize];
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argon2id_hash_raw(iterations, memory, parallelism,
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password, password.Length, salt, salt.Length, key, key.Length);
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return key;
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}
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[DllImport("argon2", EntryPoint = "argon2id_hash_raw")]
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private static extern int argon2id_hash_raw(int timeCost, int memoryCost, int parallelism,
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byte[] pwd, int pwdlen, byte[] salt, int saltlen, byte[] hash, int hashlen);
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}
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}
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