80 lines
2.7 KiB
C#
80 lines
2.7 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;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
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{
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public class PskTlsClient
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: AbstractTlsClient
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{
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protected TlsDHVerifier mDHVerifier;
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protected TlsPskIdentity mPskIdentity;
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public PskTlsClient(TlsPskIdentity pskIdentity)
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: this(new DefaultTlsCipherFactory(), pskIdentity)
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{
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}
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public PskTlsClient(TlsCipherFactory cipherFactory, TlsPskIdentity pskIdentity)
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: this(cipherFactory, new DefaultTlsDHVerifier(), pskIdentity)
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{
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}
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public PskTlsClient(TlsCipherFactory cipherFactory, TlsDHVerifier dhVerifier, TlsPskIdentity pskIdentity)
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: base(cipherFactory)
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{
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this.mDHVerifier = dhVerifier;
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this.mPskIdentity = pskIdentity;
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}
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public override int[] GetCipherSuites()
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{
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return new int[]
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{
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CipherSuite.TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
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CipherSuite.TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA,
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};
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}
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public override TlsKeyExchange GetKeyExchange()
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{
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int keyExchangeAlgorithm = TlsUtilities.GetKeyExchangeAlgorithm(mSelectedCipherSuite);
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switch (keyExchangeAlgorithm)
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{
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case KeyExchangeAlgorithm.DHE_PSK:
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case KeyExchangeAlgorithm.ECDHE_PSK:
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case KeyExchangeAlgorithm.PSK:
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case KeyExchangeAlgorithm.RSA_PSK:
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return CreatePskKeyExchange(keyExchangeAlgorithm);
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default:
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/*
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* Note: internal error here; the TlsProtocol implementation verifies that the
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* server-selected cipher suite was in the list of client-offered cipher suites, so if
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* we now can't produce an implementation, we shouldn't have offered it!
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*/
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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}
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public override TlsAuthentication GetAuthentication()
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{
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/*
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* Note: This method is not called unless a server certificate is sent, which may be the
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* case e.g. for RSA_PSK key exchange.
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*/
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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protected virtual TlsKeyExchange CreatePskKeyExchange(int keyExchange)
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{
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return new TlsPskKeyExchange(keyExchange, mSupportedSignatureAlgorithms, mPskIdentity, null, mDHVerifier, null,
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mNamedCurves, mClientECPointFormats, mServerECPointFormats);
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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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