38 lines
1.2 KiB
C#
38 lines
1.2 KiB
C#
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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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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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}
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}
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