27Aug2021-Cpp2IL-Dump/Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/OpenSsl/PemUtilities.cs

using System;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Generators;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.OpenSsl
{
	// Token: 0x02001A79 RID: 6777
	[Token(Token = "0x2001A79")]
	internal sealed class PemUtilities
	{
		// Token: 0x0600A05A RID: 41050 RVA: 0x00213654 File Offset: 0x00211854
		[Token(Token = "0x600A05A")]
		[Address(RVA = "0x63F7F0", Offset = "0x63E7F0", VA = "0x18063F7F0")]
		static PemUtilities()
		{
			Enum arbitraryValue = Enums.GetArbitraryValue(typeof(PemUtilities.PemBaseAlg));
			Enum arbitraryValue2 = Enums.GetArbitraryValue(typeof(PemUtilities.PemMode));
		}

		// Token: 0x0600A05B RID: 41051 RVA: 0x0021369C File Offset: 0x0021189C
		[Token(Token = "0x600A05B")]
		[Address(RVA = "0x63F570", Offset = "0x63E570", VA = "0x18063F570")]
		private static void ParseDekAlgName(string dekAlgName, out PemUtilities.PemBaseAlg baseAlg, out PemUtilities.PemMode mode)
		{
			Type typeFromHandle = typeof(PemUtilities.PemBaseAlg);
			int num = 0;
			int num2;
			string text = dekAlgName.Substring(num, num2);
			Enum enumValue = Enums.GetEnumValue(typeFromHandle, text);
			baseAlg.value__ = enumValue;
			Type typeFromHandle2 = typeof(PemUtilities.PemMode);
			int num3 = num2 + 1;
			string text2 = dekAlgName.Substring(num3);
			Enum enumValue2 = Enums.GetEnumValue(typeFromHandle2, text2);
			mode.value__ = enumValue2;
			Enum enumValue3 = Enums.GetEnumValue(typeof(PemUtilities.PemBaseAlg), dekAlgName);
			baseAlg.value__ = enumValue3;
		}

		// Token: 0x0600A05C RID: 41052 RVA: 0x00213744 File Offset: 0x00211944
		[Token(Token = "0x600A05C")]
		[Address(RVA = "0x63EDD0", Offset = "0x63DDD0", VA = "0x18063EDD0")]
		internal static byte[] Crypt(bool encrypt, byte[] bytes, char[] password, string dekAlgName, byte[] iv)
		{
			/*
An exception occurred when decompiling this method (0600A05C)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.OpenSsl.PemUtilities::Crypt(System.Boolean,System.Byte[],System.Char[],System.String,System.Byte[])

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_B6:
	stloc:EncryptionException(var_15_C7, newobj:EncryptionException(EncryptionException::.ctor, call:string(string::Concat, ldstr:string("Unknown DEK algorithm: "), ldloc:string(var_13))))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600A05D RID: 41053 RVA: 0x0021381C File Offset: 0x00211A1C
		[Token(Token = "0x600A05D")]
		[Address(RVA = "0x63F3E0", Offset = "0x63E3E0", VA = "0x18063F3E0")]
		private static ICipherParameters GetCipherParameters(char[] password, PemUtilities.PemBaseAlg baseAlg, byte[] salt)
		{
			if (baseAlg <= PemUtilities.PemBaseAlg.RC2_64)
			{
				OpenSslPbeParametersGenerator openSslPbeParametersGenerator = new OpenSslPbeParametersGenerator();
				byte[] array = PbeParametersGenerator.Pkcs5PasswordToBytes(password);
				ICipherParameters cipherParameters;
				return cipherParameters;
			}
			throw new NullReferenceException();
		}

		// Token: 0x0600A05E RID: 41054 RVA: 0x00213844 File Offset: 0x00211A44
		[Token(Token = "0x600A05E")]
		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
		public PemUtilities()
		{
		}

		// Token: 0x02001A7A RID: 6778
		[Token(Token = "0x2001A7A")]
		private enum PemBaseAlg
		{
			// Token: 0x04006AF6 RID: 27382
			[Token(Token = "0x4006AF6")]
			AES_128,
			// Token: 0x04006AF7 RID: 27383
			[Token(Token = "0x4006AF7")]
			AES_192,
			// Token: 0x04006AF8 RID: 27384
			[Token(Token = "0x4006AF8")]
			AES_256,
			// Token: 0x04006AF9 RID: 27385
			[Token(Token = "0x4006AF9")]
			BF,
			// Token: 0x04006AFA RID: 27386
			[Token(Token = "0x4006AFA")]
			DES,
			// Token: 0x04006AFB RID: 27387
			[Token(Token = "0x4006AFB")]
			DES_EDE,
			// Token: 0x04006AFC RID: 27388
			[Token(Token = "0x4006AFC")]
			DES_EDE3,
			// Token: 0x04006AFD RID: 27389
			[Token(Token = "0x4006AFD")]
			RC2,
			// Token: 0x04006AFE RID: 27390
			[Token(Token = "0x4006AFE")]
			RC2_40,
			// Token: 0x04006AFF RID: 27391
			[Token(Token = "0x4006AFF")]
			RC2_64
		}

		// Token: 0x02001A7B RID: 6779
		[Token(Token = "0x2001A7B")]
		private enum PemMode
		{
			// Token: 0x04006B01 RID: 27393
			[Token(Token = "0x4006B01")]
			CBC,
			// Token: 0x04006B02 RID: 27394
			[Token(Token = "0x4006B02")]
			CFB,
			// Token: 0x04006B03 RID: 27395
			[Token(Token = "0x4006B03")]
			ECB,
			// Token: 0x04006B04 RID: 27396
			[Token(Token = "0x4006B04")]
			OFB
		}
	}
}