111 lines
3.5 KiB
C#
111 lines
3.5 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.Collections.Generic;
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using System.IO;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Tls
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{
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public class SrpTlsServer
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: AbstractTlsServer
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{
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private static readonly int[] DefaultCipherSuites = new int[]
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{
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CipherSuite.TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA,
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CipherSuite.TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA,
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CipherSuite.TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA,
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CipherSuite.TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA,
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CipherSuite.TLS_SRP_SHA_WITH_AES_256_CBC_SHA,
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CipherSuite.TLS_SRP_SHA_WITH_AES_128_CBC_SHA
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};
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protected readonly TlsSrpIdentityManager m_srpIdentityManager;
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protected byte[] m_srpIdentity = null;
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protected TlsSrpLoginParameters m_srpLoginParameters = null;
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public SrpTlsServer(TlsCrypto crypto, TlsSrpIdentityManager srpIdentityManager)
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: base(crypto)
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{
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this.m_srpIdentityManager = srpIdentityManager;
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}
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/// <exception cref="IOException"/>
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protected virtual TlsCredentialedSigner GetDsaSignerCredentials()
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{
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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/// <exception cref="IOException"/>
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protected virtual TlsCredentialedSigner GetRsaSignerCredentials()
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{
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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protected override ProtocolVersion[] GetSupportedVersions()
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{
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return ProtocolVersion.TLSv12.Only();
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}
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protected override int[] GetSupportedCipherSuites()
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{
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return TlsUtilities.GetSupportedCipherSuites(Crypto, DefaultCipherSuites);
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}
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public override void ProcessClientExtensions(IDictionary<int, byte[]> clientExtensions)
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{
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base.ProcessClientExtensions(clientExtensions);
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this.m_srpIdentity = TlsSrpUtilities.GetSrpExtension(clientExtensions);
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}
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public override int GetSelectedCipherSuite()
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{
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int cipherSuite = base.GetSelectedCipherSuite();
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if (TlsSrpUtilities.IsSrpCipherSuite(cipherSuite))
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{
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if (m_srpIdentity != null)
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{
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this.m_srpLoginParameters = m_srpIdentityManager.GetLoginParameters(m_srpIdentity);
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}
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if (m_srpLoginParameters == null)
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throw new TlsFatalAlert(AlertDescription.unknown_psk_identity);
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}
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return cipherSuite;
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}
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public override TlsCredentials GetCredentials()
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{
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int keyExchangeAlgorithm = m_context.SecurityParameters.KeyExchangeAlgorithm;
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switch (keyExchangeAlgorithm)
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{
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case KeyExchangeAlgorithm.SRP:
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return null;
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case KeyExchangeAlgorithm.SRP_DSS:
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return GetDsaSignerCredentials();
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case KeyExchangeAlgorithm.SRP_RSA:
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return GetRsaSignerCredentials();
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default:
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// Note: internal error here; selected a key exchange we don't implement!
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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}
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public override TlsSrpLoginParameters GetSrpLoginParameters()
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{
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return m_srpLoginParameters;
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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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