70 lines
2.3 KiB
C#
70 lines
2.3 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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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto
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{
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/// <summary>The cipher for TLS_NULL_WITH_NULL_NULL.</summary>
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public sealed class TlsNullNullCipher
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: TlsCipher
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{
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public static readonly TlsNullNullCipher Instance = new TlsNullNullCipher();
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public int GetCiphertextDecodeLimit(int plaintextLimit)
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{
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return plaintextLimit;
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}
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public int GetCiphertextEncodeLimit(int plaintextLength, int plaintextLimit)
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{
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return plaintextLength;
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}
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public int GetPlaintextLimit(int ciphertextLimit)
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{
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return ciphertextLimit;
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}
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public TlsEncodeResult EncodePlaintext(long seqNo, short contentType, ProtocolVersion recordVersion,
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int headerAllocation, byte[] plaintext, int offset, int len)
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{
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byte[] result = new byte[headerAllocation + len];
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Array.Copy(plaintext, offset, result, headerAllocation, len);
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return new TlsEncodeResult(result, 0, result.Length, contentType);
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}
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#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || _UNITY_2021_2_OR_NEWER_
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public TlsEncodeResult EncodePlaintext(long seqNo, short contentType, ProtocolVersion recordVersion,
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int headerAllocation, ReadOnlySpan<byte> plaintext)
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{
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byte[] result = new byte[headerAllocation + plaintext.Length];
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plaintext.CopyTo(result.AsSpan(headerAllocation));
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return new TlsEncodeResult(result, 0, result.Length, contentType);
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}
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#endif
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public TlsDecodeResult DecodeCiphertext(long seqNo, short recordType, ProtocolVersion recordVersion,
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byte[] ciphertext, int offset, int len)
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{
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return new TlsDecodeResult(ciphertext, offset, len, recordType);
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}
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public void RekeyDecoder()
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{
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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public void RekeyEncoder()
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{
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throw new TlsFatalAlert(AlertDescription.internal_error);
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}
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public bool UsesOpaqueRecordType
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{
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get { return false; }
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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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