66 lines
1.6 KiB
C#
66 lines
1.6 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.Tls.Crypto;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Tls
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{
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internal sealed class DtlsEpoch
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{
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private readonly DtlsReplayWindow m_replayWindow = new DtlsReplayWindow();
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private readonly int m_epoch;
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private readonly TlsCipher m_cipher;
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private long m_sequenceNumber = 0;
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internal DtlsEpoch(int epoch, TlsCipher cipher)
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{
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if (epoch < 0)
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throw new ArgumentException("must be >= 0", "epoch");
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if (cipher == null)
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throw new ArgumentNullException("cipher");
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this.m_epoch = epoch;
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this.m_cipher = cipher;
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}
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/// <exception cref="IOException"/>
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internal long AllocateSequenceNumber()
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{
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lock (this)
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{
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if (m_sequenceNumber >= (1L << 48))
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throw new TlsFatalAlert(AlertDescription.internal_error);
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return m_sequenceNumber++;
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}
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}
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internal TlsCipher Cipher
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{
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get { return m_cipher; }
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}
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internal int Epoch
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{
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get { return m_epoch; }
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}
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internal DtlsReplayWindow ReplayWindow
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{
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get { return m_replayWindow; }
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}
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internal long SequenceNumber
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{
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get { lock (this) return m_sequenceNumber; }
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set { lock (this) this.m_sequenceNumber = value; }
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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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