74 lines
2.6 KiB
C#
74 lines
2.6 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 System.IO;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Agreement;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
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{
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public class DefaultTlsAgreementCredentials
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: AbstractTlsAgreementCredentials
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{
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protected readonly Certificate mCertificate;
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protected readonly AsymmetricKeyParameter mPrivateKey;
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protected readonly IBasicAgreement mBasicAgreement;
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protected readonly bool mTruncateAgreement;
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public DefaultTlsAgreementCredentials(Certificate certificate, AsymmetricKeyParameter privateKey)
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{
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if (certificate == null)
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throw new ArgumentNullException("certificate");
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if (certificate.IsEmpty)
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throw new ArgumentException("cannot be empty", "certificate");
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if (privateKey == null)
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throw new ArgumentNullException("privateKey");
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if (!privateKey.IsPrivate)
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throw new ArgumentException("must be private", "privateKey");
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if (privateKey is DHPrivateKeyParameters)
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{
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mBasicAgreement = new DHBasicAgreement();
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mTruncateAgreement = true;
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}
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else if (privateKey is ECPrivateKeyParameters)
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{
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mBasicAgreement = new ECDHBasicAgreement();
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mTruncateAgreement = false;
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}
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else
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{
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throw new ArgumentException("type not supported: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(privateKey), "privateKey");
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}
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this.mCertificate = certificate;
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this.mPrivateKey = privateKey;
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}
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public override Certificate Certificate
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{
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get { return mCertificate; }
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}
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/// <exception cref="IOException"></exception>
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public override byte[] GenerateAgreement(AsymmetricKeyParameter peerPublicKey)
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{
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mBasicAgreement.Init(mPrivateKey);
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BigInteger agreementValue = mBasicAgreement.CalculateAgreement(peerPublicKey);
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if (mTruncateAgreement)
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{
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return BigIntegers.AsUnsignedByteArray(agreementValue);
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}
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return BigIntegers.AsUnsignedByteArray(mBasicAgreement.GetFieldSize(), agreementValue);
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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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