using System;
using System.Runtime.InteropServices;
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: 0x020013BC RID: 5052
	[Token(Token = "0x20013BC")]
	[StructLayout(3)]
	internal sealed class PemUtilities
	{
		// Token: 0x060080B2 RID: 32946 RVA: 0x001B3358 File Offset: 0x001B1558
		[Token(Token = "0x60080B2")]
		[Address(RVA = "0x4DDDA0", Offset = "0x4DC7A0", VA = "0x1804DDDA0")]
		static PemUtilities()
		{
			Enum arbitraryValue = Enums.GetArbitraryValue(typeof(PemUtilities.PemBaseAlg));
			Enum arbitraryValue2 = Enums.GetArbitraryValue(typeof(PemUtilities.PemMode));
		}

		// Token: 0x060080B3 RID: 32947 RVA: 0x001B33A0 File Offset: 0x001B15A0
		[Token(Token = "0x60080B3")]
		[Address(RVA = "0x4DDB20", Offset = "0x4DC520", VA = "0x1804DDB20")]
		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: 0x060080B4 RID: 32948 RVA: 0x001B3448 File Offset: 0x001B1648
		[Token(Token = "0x60080B4")]
		[Address(RVA = "0x4DD380", Offset = "0x4DBD80", VA = "0x1804DD380")]
		internal static byte[] Crypt(bool encrypt, byte[] bytes, char[] password, string dekAlgName, byte[] iv)
		{
			/*
An exception occurred when decompiling this method (060080B4)

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: 0x060080B5 RID: 32949 RVA: 0x001B3520 File Offset: 0x001B1720
		[Token(Token = "0x60080B5")]
		[Address(RVA = "0x4DD990", Offset = "0x4DC390", VA = "0x1804DD990")]
		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: 0x060080B6 RID: 32950 RVA: 0x001B3548 File Offset: 0x001B1748
		[Token(Token = "0x60080B6")]
		[Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")]
		public PemUtilities()
		{
		}

		// Token: 0x020013BD RID: 5053
		[Token(Token = "0x20013BD")]
		private enum PemBaseAlg
		{
			// Token: 0x04005AFA RID: 23290
			[Token(Token = "0x4005AFA")]
			AES_128,
			// Token: 0x04005AFB RID: 23291
			[Token(Token = "0x4005AFB")]
			AES_192,
			// Token: 0x04005AFC RID: 23292
			[Token(Token = "0x4005AFC")]
			AES_256,
			// Token: 0x04005AFD RID: 23293
			[Token(Token = "0x4005AFD")]
			BF,
			// Token: 0x04005AFE RID: 23294
			[Token(Token = "0x4005AFE")]
			DES,
			// Token: 0x04005AFF RID: 23295
			[Token(Token = "0x4005AFF")]
			DES_EDE,
			// Token: 0x04005B00 RID: 23296
			[Token(Token = "0x4005B00")]
			DES_EDE3,
			// Token: 0x04005B01 RID: 23297
			[Token(Token = "0x4005B01")]
			RC2,
			// Token: 0x04005B02 RID: 23298
			[Token(Token = "0x4005B02")]
			RC2_40,
			// Token: 0x04005B03 RID: 23299
			[Token(Token = "0x4005B03")]
			RC2_64
		}

		// Token: 0x020013BE RID: 5054
		[Token(Token = "0x20013BE")]
		private enum PemMode
		{
			// Token: 0x04005B05 RID: 23301
			[Token(Token = "0x4005B05")]
			CBC,
			// Token: 0x04005B06 RID: 23302
			[Token(Token = "0x4005B06")]
			CFB,
			// Token: 0x04005B07 RID: 23303
			[Token(Token = "0x4005B07")]
			ECB,
			// Token: 0x04005B08 RID: 23304
			[Token(Token = "0x4005B08")]
			OFB
		}
	}
}