using System;
using System.Runtime.InteropServices;
using System.Runtime.Serialization.Formatters.Binary;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines
{
	// Token: 0x020016B8 RID: 5816
	[Token(Token = "0x20016B8")]
	[StructLayout(3)]
	public class IsaacEngine : IStreamCipher
	{
		// Token: 0x06009BEF RID: 39919 RVA: 0x0023475C File Offset: 0x0023295C
		[Token(Token = "0x6009BEF")]
		[Address(RVA = "0x2125090", Offset = "0x2123A90", VA = "0x182125090", Slot = "9")]
		public virtual void Init(bool forEncryption, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (06009BEF)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.IsaacEngine::Init(System.Boolean,BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.ICipherParameters)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_18:
	stloc:ArgumentException(var_4_2D, newobj:ArgumentException(ArgumentException::.ctor, call:string(string::Concat, ldstr:string("invalid parameter passed to ISAAC Init - "), ldloc:string(var_3)), ldstr:string("parameters")))
}

   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: 0x06009BF0 RID: 39920 RVA: 0x00234798 File Offset: 0x00232998
		[Token(Token = "0x6009BF0")]
		[Address(RVA = "0x21253D0", Offset = "0x2123DD0", VA = "0x1821253D0", Slot = "10")]
		public virtual byte ReturnByte(byte input)
		{
			if (this.index == 0)
			{
				this.isaac();
				byte[] array = Pack.UInt32_To_BE(this.results);
				this.keyStream = array;
			}
			byte[] array2 = this.keyStream;
			int num = this.index + 1;
			this.index = num;
			byte b;
			return b;
		}

		// Token: 0x06009BF1 RID: 39921 RVA: 0x002347E8 File Offset: 0x002329E8
		[Token(Token = "0x6009BF1")]
		[Address(RVA = "0x21251E0", Offset = "0x2123BE0", VA = "0x1821251E0", Slot = "11")]
		public virtual void ProcessBytes(byte[] input, int inOff, int len, byte[] output, int outOff)
		{
			/*
An exception occurred when decompiling this method (06009BF1)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Void BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.IsaacEngine::ProcessBytes(System.Byte[],System.Int32,System.Int32,System.Byte[],System.Int32)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_63:
	stloc:InvalidOperationException(var_7_6A, newobj:InvalidOperationException(InvalidOperationException::.ctor, ldloc:string(var_6)))
}

   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.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846
   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: 0x170018D1 RID: 6353
		// (get) Token: 0x06009BF2 RID: 39922 RVA: 0x00234860 File Offset: 0x00232A60
		[Token(Token = "0x170018D1")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x6009BF2")]
			[Address(RVA = "0x2125520", Offset = "0x2123F20", VA = "0x182125520", Slot = "12")]
			get
			{
				return "ISAAC";
			}
		}

		// Token: 0x06009BF3 RID: 39923 RVA: 0x00234874 File Offset: 0x00232A74
		[Token(Token = "0x6009BF3")]
		[Address(RVA = "0x21253C0", Offset = "0x2123DC0", VA = "0x1821253C0", Slot = "13")]
		public virtual void Reset()
		{
			byte[] array = this.workingKey;
			this.setKey(array);
		}

		// Token: 0x06009BF4 RID: 39924 RVA: 0x00234890 File Offset: 0x00232A90
		[Token(Token = "0x6009BF4")]
		[Address(RVA = "0x2125C80", Offset = "0x2124680", VA = "0x182125C80")]
		private void setKey(byte[] keyBytes)
		{
			this.workingKey = keyBytes;
			if (this.engineState == (ulong)0L)
			{
				uint[] array = new uint[IsaacEngine.stateArraySize];
				this.engineState = array;
			}
			if (this.results == (ulong)0L)
			{
				uint[] array2 = new uint[IsaacEngine.stateArraySize];
				this.results = array2;
			}
			int num = 0;
			uint[] array3 = this.results;
			uint[] array4 = this.engineState;
			array3[0] = (uint)num;
			array4[0] = (uint)num;
			num++;
			this.b = (uint)num;
			this.a = (uint)num;
			this.index = num;
			byte[] array5 = new byte[keyBytes.Length];
			int length = keyBytes.Length;
			int num2 = 0;
			int num3 = 0;
			Array.Copy(keyBytes, num3, array5, num2, length);
			if (num < array5.Length)
			{
				uint[] array6 = this.results;
				int @int = SerializationHeaderRecord.GetInt32(array5, num);
				num += 4;
				array6[0] = (uint)@int;
			}
			uint[] array7 = new uint[IsaacEngine.sizeL];
			num++;
			array7[0] = (uint)((ulong)2654435769L);
			this.mix(array7);
			while (num != array7.Length)
			{
			}
			num -= num;
			if (num < 1)
			{
				uint[] array8 = this.results;
			}
			uint[] array9 = this.engineState;
			num++;
			this.mix(array7);
			uint[] array10 = this.engineState;
			num++;
			uint num4 = array7[num];
			array10[0] = num4;
			num++;
			this.isaac();
			this.initialised = true;
		}

		// Token: 0x06009BF5 RID: 39925 RVA: 0x00234A00 File Offset: 0x00232C00
		[Token(Token = "0x6009BF5")]
		[Address(RVA = "0x2125550", Offset = "0x2123F50", VA = "0x182125550")]
		private void isaac()
		{
			uint num = this.c;
			num += (uint)1;
			int num2 = 0;
			this.c = num;
			uint[] array = this.engineState;
			uint num3 = array[num2];
			if (num2 != array.Length && num2 != array.Length && (num2 == array.Length || num2 == 1))
			{
				this.a = (uint)num2;
			}
			uint num4;
			this.a = num4;
			int length = array.Length;
			uint num5 = array[(int)num3];
			num5 += num4;
			array.m_value = num5;
			uint[] array2 = this.engineState;
			uint[] array3 = this.results;
			num3 = num5;
			uint num6 = array2[(int)num3];
			num6 += num3;
			this.b = num6;
			array3.m_value = num6;
			num2++;
		}

		// Token: 0x06009BF6 RID: 39926 RVA: 0x00234AC0 File Offset: 0x00232CC0
		[Token(Token = "0x6009BF6")]
		[Address(RVA = "0x2125740", Offset = "0x2124140", VA = "0x182125740")]
		private void mix(uint[] x)
		{
			int length = x.Length;
			uint num = x[0];
			x[0] = num;
			int length2 = x.Length;
			uint num2 = x[0];
			uint num3 = x[1];
			num3 += num2;
			x[0] = num3;
			int length3 = x.Length;
			uint num4 = x[1];
			x[0] = num4;
			int length4 = x.Length;
			uint num5 = x[1];
			uint num6 = x[1];
			num6 += num5;
			x[1] = num6;
			int length5 = x.Length;
			uint num7 = x[1];
			x[1] = num7;
			int length6 = x.Length;
			uint num8 = x[1];
			uint num9 = x[2];
			num9 += num8;
			x[1] = num9;
			int length7 = x.Length;
			uint num10 = x[2];
			x[1] = num10;
			int length8 = x.Length;
			uint num11 = x[2];
			uint num12 = x[2];
			num12 += num11;
			x[2] = num12;
			int length9 = x.Length;
			uint num13 = x[2];
			x[2] = num13;
			int length10 = x.Length;
			uint num14 = x[2];
			x[2] = num14;
			int length11 = x.Length;
			uint num15 = x[3];
			x[2] = num15;
			int length12 = x.Length;
			uint num16 = x[0];
			num15 += num16;
			x[0] = num15;
			int length13 = x.Length;
			uint num17 = x[3];
			x[3] = num17;
			int length14 = x.Length;
			uint num18 = x[3];
			x[3] = num18;
			int length15 = x.Length;
			uint num19 = x[0];
			num18 += num19;
			x[0] = num18;
			uint num20 = x[0];
			x[3] = num20;
			uint num21 = x[0];
			x[3] = num21;
			int length16 = x.Length;
			uint num22 = x[1];
			num21 += num22;
			x[1] = num21;
			int length17 = x.Length;
			uint num23 = x[0];
			x[0] = num23;
		}

		// Token: 0x06009BF7 RID: 39927 RVA: 0x00234D00 File Offset: 0x00232F00
		[Token(Token = "0x6009BF7")]
		[Address(RVA = "0x21254A0", Offset = "0x2123EA0", VA = "0x1821254A0")]
		public IsaacEngine()
		{
			byte[] array = new byte[IsaacEngine.stateArraySize];
			this.keyStream = array;
			base..ctor();
		}

		// Token: 0x04006650 RID: 26192
		[Token(Token = "0x4006650")]
		private static readonly int sizeL;

		// Token: 0x04006651 RID: 26193
		[Token(Token = "0x4006651")]
		private static readonly int stateArraySize = IsaacEngine.sizeL;

		// Token: 0x04006652 RID: 26194
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4006652")]
		private uint[] engineState;

		// Token: 0x04006653 RID: 26195
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x4006653")]
		private uint[] results;

		// Token: 0x04006654 RID: 26196
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4006654")]
		private uint a;

		// Token: 0x04006655 RID: 26197
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x24")]
		[Token(Token = "0x4006655")]
		private uint b;

		// Token: 0x04006656 RID: 26198
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4006656")]
		private uint c;

		// Token: 0x04006657 RID: 26199
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x2C")]
		[Token(Token = "0x4006657")]
		private int index;

		// Token: 0x04006658 RID: 26200
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4006658")]
		private byte[] keyStream;

		// Token: 0x04006659 RID: 26201
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x4006659")]
		private byte[] workingKey;

		// Token: 0x0400665A RID: 26202
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
		[Token(Token = "0x400665A")]
		private bool initialised;
	}
}