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: 0x02001999 RID: 6553
	[Token(Token = "0x2001999")]
	internal sealed class PemUtilities
	{
		// Token: 0x06009C8C RID: 40076 RVA: 0x0020A5CC File Offset: 0x002087CC
		[Token(Token = "0x6009C8C")]
		[Address(RVA = "0x1CBD350", Offset = "0x1CBC150", VA = "0x181CBD350")]
		static PemUtilities()
		{
			Enum arbitraryValue = Enums.GetArbitraryValue(typeof(PemUtilities.PemBaseAlg));
			Enum arbitraryValue2 = Enums.GetArbitraryValue(typeof(PemUtilities.PemMode));
		}

		// Token: 0x06009C8D RID: 40077 RVA: 0x0020A614 File Offset: 0x00208814
		[Token(Token = "0x6009C8D")]
		[Address(RVA = "0x1CBD0D0", Offset = "0x1CBBED0", VA = "0x181CBD0D0")]
		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: 0x06009C8E RID: 40078 RVA: 0x0020A6BC File Offset: 0x002088BC
		[Token(Token = "0x6009C8E")]
		[Address(RVA = "0x1CBC930", Offset = "0x1CBB730", VA = "0x181CBC930")]
		internal static byte[] Crypt(bool encrypt, byte[] bytes, char[] password, string dekAlgName, byte[] iv)
		{
			/*
An exception occurred when decompiling this method (06009C8E)

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 1660
*/;
		}

		// Token: 0x06009C8F RID: 40079 RVA: 0x0020A794 File Offset: 0x00208994
		[Token(Token = "0x6009C8F")]
		[Address(RVA = "0x1CBCF40", Offset = "0x1CBBD40", VA = "0x181CBCF40")]
		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: 0x06009C90 RID: 40080 RVA: 0x0020A7BC File Offset: 0x002089BC
		[Token(Token = "0x6009C90")]
		[Address(RVA = "0x3F5100", Offset = "0x3F3F00", VA = "0x1803F5100")]
		public PemUtilities()
		{
		}

		// Token: 0x0200199A RID: 6554
		[Token(Token = "0x200199A")]
		private enum PemBaseAlg
		{
			// Token: 0x0400693D RID: 26941
			[Token(Token = "0x400693D")]
			AES_128,
			// Token: 0x0400693E RID: 26942
			[Token(Token = "0x400693E")]
			AES_192,
			// Token: 0x0400693F RID: 26943
			[Token(Token = "0x400693F")]
			AES_256,
			// Token: 0x04006940 RID: 26944
			[Token(Token = "0x4006940")]
			BF,
			// Token: 0x04006941 RID: 26945
			[Token(Token = "0x4006941")]
			DES,
			// Token: 0x04006942 RID: 26946
			[Token(Token = "0x4006942")]
			DES_EDE,
			// Token: 0x04006943 RID: 26947
			[Token(Token = "0x4006943")]
			DES_EDE3,
			// Token: 0x04006944 RID: 26948
			[Token(Token = "0x4006944")]
			RC2,
			// Token: 0x04006945 RID: 26949
			[Token(Token = "0x4006945")]
			RC2_40,
			// Token: 0x04006946 RID: 26950
			[Token(Token = "0x4006946")]
			RC2_64
		}

		// Token: 0x0200199B RID: 6555
		[Token(Token = "0x200199B")]
		private enum PemMode
		{
			// Token: 0x04006948 RID: 26952
			[Token(Token = "0x4006948")]
			CBC,
			// Token: 0x04006949 RID: 26953
			[Token(Token = "0x4006949")]
			CFB,
			// Token: 0x0400694A RID: 26954
			[Token(Token = "0x400694A")]
			ECB,
			// Token: 0x0400694B RID: 26955
			[Token(Token = "0x400694B")]
			OFB
		}
	}
}