96 lines
3.8 KiB
C#
96 lines
3.8 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Kisa;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Nist;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Ntt;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Oiw;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Pkcs;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Generators;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Utilities
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{
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public static class CipherKeyGeneratorFactory
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{
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/**
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* Create a key generator for the passed in Object Identifier.
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*
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* @param algorithm the Object Identifier indicating the algorithn the generator is for.
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* @param random a source of random to initialise the generator with.
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* @return an initialised CipherKeyGenerator.
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* @throws IllegalArgumentException if the algorithm cannot be identified.
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*/
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public static CipherKeyGenerator CreateKeyGenerator(DerObjectIdentifier algorithm, SecureRandom random)
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{
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if (NistObjectIdentifiers.IdAes128Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 128);
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}
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else if (NistObjectIdentifiers.IdAes192Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 192);
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}
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else if (NistObjectIdentifiers.IdAes256Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 256);
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}
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else if (PkcsObjectIdentifiers.DesEde3Cbc.Equals(algorithm))
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{
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DesEdeKeyGenerator keyGen = new DesEdeKeyGenerator();
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keyGen.Init(new KeyGenerationParameters(random, 192));
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return keyGen;
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}
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else if (NttObjectIdentifiers.IdCamellia128Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 128);
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}
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else if (NttObjectIdentifiers.IdCamellia192Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 192);
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}
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else if (NttObjectIdentifiers.IdCamellia256Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 256);
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}
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else if (KisaObjectIdentifiers.IdSeedCbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 128);
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}
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else if (AlgorithmIdentifierFactory.CAST5_CBC.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 128);
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}
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else if (OiwObjectIdentifiers.DesCbc.Equals(algorithm))
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{
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DesKeyGenerator keyGen = new DesKeyGenerator();
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keyGen.Init(new KeyGenerationParameters(random, 64));
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return keyGen;
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}
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else if (PkcsObjectIdentifiers.rc4.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 128);
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}
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else if (PkcsObjectIdentifiers.RC2Cbc.Equals(algorithm))
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{
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return CreateCipherKeyGenerator(random, 128);
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}
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else
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{
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throw new InvalidOperationException("cannot recognise cipher: " + algorithm);
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}
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}
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private static CipherKeyGenerator CreateCipherKeyGenerator(SecureRandom random, int keySize)
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{
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CipherKeyGenerator keyGen = new CipherKeyGenerator();
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keyGen.Init(new KeyGenerationParameters(random, keySize));
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return keyGen;
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}
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}
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}
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#pragma warning restore
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#endif
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