137 lines
3.3 KiB
C#
137 lines
3.3 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
|
#pragma warning disable
|
|
using System;
|
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto
|
|
{
|
|
public abstract class BufferedCipherBase
|
|
: IBufferedCipher
|
|
{
|
|
protected static readonly byte[] EmptyBuffer = new byte[0];
|
|
|
|
public abstract string AlgorithmName { get; }
|
|
|
|
public abstract void Init(bool forEncryption, ICipherParameters parameters);
|
|
|
|
public abstract int GetBlockSize();
|
|
|
|
public abstract int GetOutputSize(int inputLen);
|
|
public abstract int GetUpdateOutputSize(int inputLen);
|
|
|
|
public abstract byte[] ProcessByte(byte input);
|
|
|
|
public virtual int ProcessByte(
|
|
byte input,
|
|
byte[] output,
|
|
int outOff)
|
|
{
|
|
byte[] outBytes = ProcessByte(input);
|
|
if (outBytes == null)
|
|
return 0;
|
|
if (outOff + outBytes.Length > output.Length)
|
|
throw new DataLengthException("output buffer too short");
|
|
outBytes.CopyTo(output, outOff);
|
|
return outBytes.Length;
|
|
}
|
|
|
|
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || _UNITY_2021_2_OR_NEWER_
|
|
public abstract int ProcessByte(byte input, Span<byte> output);
|
|
#endif
|
|
|
|
public virtual byte[] ProcessBytes(
|
|
byte[] input)
|
|
{
|
|
return ProcessBytes(input, 0, input.Length);
|
|
}
|
|
|
|
public abstract byte[] ProcessBytes(byte[] input, int inOff, int length);
|
|
|
|
public virtual int ProcessBytes(
|
|
byte[] input,
|
|
byte[] output,
|
|
int outOff)
|
|
{
|
|
return ProcessBytes(input, 0, input.Length, output, outOff);
|
|
}
|
|
|
|
public virtual int ProcessBytes(
|
|
byte[] input,
|
|
int inOff,
|
|
int length,
|
|
byte[] output,
|
|
int outOff)
|
|
{
|
|
byte[] outBytes = ProcessBytes(input, inOff, length);
|
|
if (outBytes == null)
|
|
return 0;
|
|
if (outOff + outBytes.Length > output.Length)
|
|
throw new DataLengthException("output buffer too short");
|
|
outBytes.CopyTo(output, outOff);
|
|
return outBytes.Length;
|
|
}
|
|
|
|
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || _UNITY_2021_2_OR_NEWER_
|
|
public abstract int ProcessBytes(ReadOnlySpan<byte> input, Span<byte> output);
|
|
#endif
|
|
|
|
public abstract byte[] DoFinal();
|
|
|
|
public virtual byte[] DoFinal(
|
|
byte[] input)
|
|
{
|
|
return DoFinal(input, 0, input.Length);
|
|
}
|
|
|
|
public abstract byte[] DoFinal(
|
|
byte[] input,
|
|
int inOff,
|
|
int length);
|
|
|
|
public virtual int DoFinal(
|
|
byte[] output,
|
|
int outOff)
|
|
{
|
|
byte[] outBytes = DoFinal();
|
|
if (outOff + outBytes.Length > output.Length)
|
|
throw new DataLengthException("output buffer too short");
|
|
outBytes.CopyTo(output, outOff);
|
|
return outBytes.Length;
|
|
}
|
|
|
|
public virtual int DoFinal(
|
|
byte[] input,
|
|
byte[] output,
|
|
int outOff)
|
|
{
|
|
return DoFinal(input, 0, input.Length, output, outOff);
|
|
}
|
|
|
|
public virtual int DoFinal(
|
|
byte[] input,
|
|
int inOff,
|
|
int length,
|
|
byte[] output,
|
|
int outOff)
|
|
{
|
|
int len = ProcessBytes(input, inOff, length, output, outOff);
|
|
len += DoFinal(output, outOff + len);
|
|
return len;
|
|
}
|
|
|
|
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER || _UNITY_2021_2_OR_NEWER_
|
|
public abstract int DoFinal(Span<byte> output);
|
|
|
|
public virtual int DoFinal(ReadOnlySpan<byte> input, Span<byte> output)
|
|
{
|
|
int len = ProcessBytes(input, output);
|
|
len += DoFinal(output[len..]);
|
|
return len;
|
|
}
|
|
#endif
|
|
|
|
public abstract void Reset();
|
|
}
|
|
}
|
|
#pragma warning restore
|
|
#endif
|