71 lines
2.0 KiB
C#
71 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 Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Modes;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl.BC
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{
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internal sealed class BcTlsAeadCipherImpl
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: TlsAeadCipherImpl
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{
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private readonly bool m_isEncrypting;
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private readonly IAeadCipher m_cipher;
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private KeyParameter key;
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internal BcTlsAeadCipherImpl(IAeadCipher 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[] nonce, int macSize, byte[] additionalData)
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{
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m_cipher.Init(m_isEncrypting, new AeadParameters(key, macSize * 8, nonce, additionalData));
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}
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public int GetOutputSize(int inputLength)
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{
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return m_cipher.GetOutputSize(inputLength);
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}
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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 len = m_cipher.ProcessBytes(input, inputOffset, inputLength, output, outputOffset);
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try
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{
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len += m_cipher.DoFinal(output, outputOffset + len);
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}
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catch (InvalidCipherTextException e)
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{
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throw new TlsFatalAlert(AlertDescription.bad_record_mac, e);
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}
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return len;
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}
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public 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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