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using System;
using System.IO;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Utilities.Encoders;
using Org.BouncyCastle.Utilities.Test;
namespace Org.BouncyCastle.Crypto.Tests
{
/**
* a basic test that takes a cipher, key parameter, and an input
* and output string. This test wraps the engine in a buffered block
* cipher with padding disabled.
*/
public class BlockCipherVectorTest
: SimpleTest
{
int id;
IBlockCipher engine;
ICipherParameters param;
byte[] input;
byte[] output;
public BlockCipherVectorTest(
int id,
IBlockCipher engine,
ICipherParameters param,
string input,
string output)
{
this.id = id;
this.engine = engine;
this.param = param;
this.input = Hex.Decode(input);
this.output = Hex.Decode(output);
}
public override string Name
{
get
{
return engine.AlgorithmName + " Vector Test " + id;
}
}
public override void PerformTest()
{
BufferedBlockCipher cipher = new BufferedBlockCipher(engine);
cipher.Init(true, param);
byte[] outBytes = new byte[input.Length];
int len1 = cipher.ProcessBytes(input, 0, input.Length, outBytes, 0);
cipher.DoFinal(outBytes, len1);
if (!AreEqual(outBytes, output))
{
Fail("failed - " + "expected " + Hex.ToHexString(output) + " got " + Hex.ToHexString(outBytes));
}
cipher.Init(false, param);
int len2 = cipher.ProcessBytes(output, 0, output.Length, outBytes, 0);
cipher.DoFinal(outBytes, len2);
if (!AreEqual(input, outBytes))
{
Fail("failed reversal got " + Hex.ToHexString(outBytes));
}
// NOTE: .NET Core 3.1 has Span<T>, but is tested against our .NET Standard 2.0 assembly.
//#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
#if NET6_0_OR_GREATER || NETSTANDARD2_1_OR_GREATER
cipher.Init(true, param);
len1 = cipher.ProcessBytes(input, outBytes);
cipher.DoFinal(outBytes.AsSpan(len1));
if (!AreEqual(outBytes, output))
{
Fail("failed - " + "expected " + Hex.ToHexString(output) + " got " + Hex.ToHexString(outBytes));
}
cipher.Init(false, param);
len2 = cipher.ProcessBytes(output, outBytes);
cipher.DoFinal(outBytes.AsSpan(len2));
if (!AreEqual(input, outBytes))
{
Fail("failed reversal got " + Hex.ToHexString(outBytes));
}
#endif
}
}
}
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