69 lines
2.0 KiB
C#
69 lines
2.0 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;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl;
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namespace BestHTTP.Connections.TLS.Crypto.Impl
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{
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internal sealed class FastTlsBlockCipherImpl
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: TlsBlockCipherImpl
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{
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private readonly bool m_isEncrypting;
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private readonly IBlockCipher m_cipher;
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private KeyParameter key;
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internal FastTlsBlockCipherImpl(IBlockCipher cipher, bool isEncrypting)
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{
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this.m_cipher = cipher;
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this.m_isEncrypting = isEncrypting;
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}
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public void SetKey(byte[] key, int keyOff, int keyLen)
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{
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this.key = new KeyParameter(key, keyOff, keyLen);
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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 void SetKey(ReadOnlySpan<byte> key)
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{
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this.key = new KeyParameter(key);
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}
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#endif
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public void Init(byte[] iv, int ivOff, int ivLen)
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{
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m_cipher.Init(m_isEncrypting, new ParametersWithIV(key, iv, ivOff, ivLen));
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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 void Init(ReadOnlySpan<byte> iv)
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{
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m_cipher.Init(m_isEncrypting, new ParametersWithIV(key, iv));
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}
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#endif
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public int DoFinal(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset)
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{
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int blockSize = m_cipher.GetBlockSize();
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for (int i = 0; i < inputLength; i += blockSize)
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{
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m_cipher.ProcessBlock(input, inputOffset + i, output, outputOffset + i);
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}
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return inputLength;
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}
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public int GetBlockSize()
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{
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return m_cipher.GetBlockSize();
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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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