init commit

2025-10-09 09:57:24 +09:00
commit 4d551bd74f
6636 changed files with 1218703 additions and 0 deletions
--- a/output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Security/WrapperUtilities.cs
+++ b/output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Security/WrapperUtilities.cs
@@ -0,0 +1,138 @@
+using System;
+using System.Collections;
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Asn1.Kisa;
+using Org.BouncyCastle.Asn1.Nist;
+using Org.BouncyCastle.Asn1.Ntt;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Engines;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Security;
+
+public sealed class WrapperUtilities
+{
+	private enum WrapAlgorithm
+	{
+		AESWRAP,
+		CAMELLIAWRAP,
+		DESEDEWRAP,
+		RC2WRAP,
+		SEEDWRAP,
+		DESEDERFC3211WRAP,
+		AESRFC3211WRAP,
+		CAMELLIARFC3211WRAP
+	}
+
+	private class BufferedCipherWrapper : IWrapper
+	{
+		private readonly IBufferedCipher cipher;
+
+		private bool forWrapping;
+
+		public string AlgorithmName => cipher.AlgorithmName;
+
+		public BufferedCipherWrapper(IBufferedCipher cipher)
+		{
+			this.cipher = cipher;
+		}
+
+		public void Init(bool forWrapping, ICipherParameters parameters)
+		{
+			this.forWrapping = forWrapping;
+			cipher.Init(forWrapping, parameters);
+		}
+
+		public byte[] Wrap(byte[] input, int inOff, int length)
+		{
+			if (!forWrapping)
+			{
+				throw new InvalidOperationException("Not initialised for wrapping");
+			}
+			return cipher.DoFinal(input, inOff, length);
+		}
+
+		public byte[] Unwrap(byte[] input, int inOff, int length)
+		{
+			if (forWrapping)
+			{
+				throw new InvalidOperationException("Not initialised for unwrapping");
+			}
+			return cipher.DoFinal(input, inOff, length);
+		}
+	}
+
+	private static readonly IDictionary algorithms;
+
+	private WrapperUtilities()
+	{
+	}
+
+	static WrapperUtilities()
+	{
+		algorithms = Platform.CreateHashtable();
+		((WrapAlgorithm)Enums.GetArbitraryValue(typeof(WrapAlgorithm))).ToString();
+		algorithms[NistObjectIdentifiers.IdAes128Wrap.Id] = "AESWRAP";
+		algorithms[NistObjectIdentifiers.IdAes192Wrap.Id] = "AESWRAP";
+		algorithms[NistObjectIdentifiers.IdAes256Wrap.Id] = "AESWRAP";
+		algorithms[NttObjectIdentifiers.IdCamellia128Wrap.Id] = "CAMELLIAWRAP";
+		algorithms[NttObjectIdentifiers.IdCamellia192Wrap.Id] = "CAMELLIAWRAP";
+		algorithms[NttObjectIdentifiers.IdCamellia256Wrap.Id] = "CAMELLIAWRAP";
+		algorithms[PkcsObjectIdentifiers.IdAlgCms3DesWrap.Id] = "DESEDEWRAP";
+		algorithms["TDEAWRAP"] = "DESEDEWRAP";
+		algorithms[PkcsObjectIdentifiers.IdAlgCmsRC2Wrap.Id] = "RC2WRAP";
+		algorithms[KisaObjectIdentifiers.IdNpkiAppCmsSeedWrap.Id] = "SEEDWRAP";
+	}
+
+	public static IWrapper GetWrapper(DerObjectIdentifier oid)
+	{
+		return GetWrapper(oid.Id);
+	}
+
+	public static IWrapper GetWrapper(string algorithm)
+	{
+		string text = Platform.ToUpperInvariant(algorithm);
+		string text2 = (string)algorithms[text];
+		if (text2 == null)
+		{
+			text2 = text;
+		}
+		try
+		{
+			switch ((WrapAlgorithm)Enums.GetEnumValue(typeof(WrapAlgorithm), text2))
+			{
+			case WrapAlgorithm.AESWRAP:
+				return new AesWrapEngine();
+			case WrapAlgorithm.CAMELLIAWRAP:
+				return new CamelliaWrapEngine();
+			case WrapAlgorithm.DESEDEWRAP:
+				return new DesEdeWrapEngine();
+			case WrapAlgorithm.RC2WRAP:
+				return new RC2WrapEngine();
+			case WrapAlgorithm.SEEDWRAP:
+				return new SeedWrapEngine();
+			case WrapAlgorithm.DESEDERFC3211WRAP:
+				return new Rfc3211WrapEngine(new DesEdeEngine());
+			case WrapAlgorithm.AESRFC3211WRAP:
+				return new Rfc3211WrapEngine(new AesEngine());
+			case WrapAlgorithm.CAMELLIARFC3211WRAP:
+				return new Rfc3211WrapEngine(new CamelliaEngine());
+			}
+		}
+		catch (ArgumentException)
+		{
+		}
+		IBufferedCipher cipher = CipherUtilities.GetCipher(algorithm);
+		if (cipher != null)
+		{
+			return new BufferedCipherWrapper(cipher);
+		}
+		throw new SecurityUtilityException("Wrapper " + algorithm + " not recognised.");
+	}
+
+	public static string GetAlgorithmName(DerObjectIdentifier oid)
+	{
+		return (string)algorithms[oid.Id];
+	}
+}