61 lines
1.4 KiB
C#
61 lines
1.4 KiB
C#
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#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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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
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{
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internal class DtlsEpoch
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{
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private readonly DtlsReplayWindow mReplayWindow = new DtlsReplayWindow();
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private readonly int mEpoch;
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private readonly TlsCipher mCipher;
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private long mSequenceNumber = 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.mEpoch = epoch;
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this.mCipher = cipher;
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}
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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 (mSequenceNumber >= (1L << 48))
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throw new TlsFatalAlert(AlertDescription.internal_error);
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return mSequenceNumber++;
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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 mCipher; }
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}
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internal int Epoch
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{
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get { return mEpoch; }
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}
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internal DtlsReplayWindow ReplayWindow
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{
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get { return mReplayWindow; }
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}
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internal long SequenceNumber
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{
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get { lock(this) return mSequenceNumber; }
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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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