142 lines
3.3 KiB
C#
142 lines
3.3 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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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto
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{
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public class BufferedStreamCipher
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: BufferedCipherBase
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{
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private readonly IStreamCipher m_cipher;
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public BufferedStreamCipher(IStreamCipher cipher)
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{
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if (cipher == null)
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throw new ArgumentNullException("cipher");
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this.m_cipher = cipher;
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}
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public override string AlgorithmName
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{
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get { return m_cipher.AlgorithmName; }
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}
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public override void Init(bool forEncryption, ICipherParameters parameters)
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{
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if (parameters is ParametersWithRandom withRandom)
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{
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parameters = withRandom.Parameters;
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}
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m_cipher.Init(forEncryption, parameters);
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}
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public override int GetBlockSize()
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{
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return 0;
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}
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public override int GetOutputSize(int inputLen)
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{
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return inputLen;
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}
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public override int GetUpdateOutputSize(int inputLen)
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{
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return inputLen;
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}
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public override byte[] ProcessByte(byte input)
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{
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return new byte[]{ m_cipher.ReturnByte(input) };
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}
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public override int ProcessByte(byte input, byte[] output, int outOff)
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{
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if (outOff >= output.Length)
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throw new DataLengthException("output buffer too short");
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output[outOff] = m_cipher.ReturnByte(input);
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return 1;
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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 override int ProcessByte(byte input, Span<byte> output)
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{
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output[0] = m_cipher.ReturnByte(input);
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return 1;
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}
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#endif
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public override byte[] ProcessBytes(byte[] input, int inOff, int length)
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{
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if (length < 1)
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return null;
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byte[] output = new byte[length];
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m_cipher.ProcessBytes(input, inOff, length, output, 0);
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return output;
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}
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public override int ProcessBytes(byte[] input, int inOff, int length, byte[] output, int outOff)
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{
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if (length < 1)
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return 0;
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m_cipher.ProcessBytes(input, inOff, length, output, outOff);
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return length;
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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 override int ProcessBytes(ReadOnlySpan<byte> input, Span<byte> output)
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{
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m_cipher.ProcessBytes(input, output);
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return input.Length;
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}
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#endif
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public override byte[] DoFinal()
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{
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m_cipher.Reset();
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return EmptyBuffer;
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}
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public override byte[] DoFinal(byte[] input, int inOff, int length)
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{
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if (length < 1)
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return EmptyBuffer;
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byte[] output = new byte[length];
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m_cipher.ProcessBytes(input, inOff, length, output, 0);
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m_cipher.Reset();
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return output;
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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 override int DoFinal(Span<byte> output)
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{
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m_cipher.Reset();
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return 0;
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}
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public override int DoFinal(ReadOnlySpan<byte> input, Span<byte> output)
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{
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m_cipher.ProcessBytes(input, output);
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m_cipher.Reset();
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return input.Length;
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}
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#endif
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public override void Reset()
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{
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m_cipher.Reset();
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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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