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

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines
{
	// Token: 0x02001D75 RID: 7541
	[Token(Token = "0x2001D75")]
	public class IsaacEngine : IStreamCipher
	{
		// Token: 0x0600BB97 RID: 48023 RVA: 0x00294F1C File Offset: 0x0029311C
		[Token(Token = "0x600BB97")]
		[Address(RVA = "0x27F4DD0", Offset = "0x27F3DD0", VA = "0x1827F4DD0", Slot = "9")]
		public virtual void Init(bool forEncryption, ICipherParameters parameters)
		{
			/*
An exception occurred when decompiling this method (0600BB97)

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: 0x0600BB98 RID: 48024 RVA: 0x00294F58 File Offset: 0x00293158
		[Token(Token = "0x600BB98")]
		[Address(RVA = "0x27F5110", Offset = "0x27F4110", VA = "0x1827F5110", 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: 0x0600BB99 RID: 48025 RVA: 0x00294FA8 File Offset: 0x002931A8
		[Token(Token = "0x600BB99")]
		[Address(RVA = "0x27F4F20", Offset = "0x27F3F20", VA = "0x1827F4F20", Slot = "11")]
		public virtual void ProcessBytes(byte[] input, int inOff, int len, byte[] output, int outOff)
		{
			/*
An exception occurred when decompiling this method (0600BB99)

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: 0x17001D6F RID: 7535
		// (get) Token: 0x0600BB9A RID: 48026 RVA: 0x00295020 File Offset: 0x00293220
		[Token(Token = "0x17001D6F")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x600BB9A")]
			[Address(RVA = "0x27F5260", Offset = "0x27F4260", VA = "0x1827F5260", Slot = "12")]
			get
			{
				return "ISAAC";
			}
		}

		// Token: 0x0600BB9B RID: 48027 RVA: 0x00295034 File Offset: 0x00293234
		[Token(Token = "0x600BB9B")]
		[Address(RVA = "0x27F5100", Offset = "0x27F4100", VA = "0x1827F5100", Slot = "13")]
		public virtual void Reset()
		{
			byte[] array = this.workingKey;
			this.setKey(array);
		}

		// Token: 0x0600BB9C RID: 48028 RVA: 0x00295050 File Offset: 0x00293250
		[Token(Token = "0x600BB9C")]
		[Address(RVA = "0x27F59C0", Offset = "0x27F49C0", VA = "0x1827F59C0")]
		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: 0x0600BB9D RID: 48029 RVA: 0x002951C0 File Offset: 0x002933C0
		[Token(Token = "0x600BB9D")]
		[Address(RVA = "0x27F5290", Offset = "0x27F4290", VA = "0x1827F5290")]
		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: 0x0600BB9E RID: 48030 RVA: 0x00295280 File Offset: 0x00293480
		[Token(Token = "0x600BB9E")]
		[Address(RVA = "0x27F5480", Offset = "0x27F4480", VA = "0x1827F5480")]
		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: 0x0600BB9F RID: 48031 RVA: 0x002954C0 File Offset: 0x002936C0
		[Token(Token = "0x600BB9F")]
		[Address(RVA = "0x27F51E0", Offset = "0x27F41E0", VA = "0x1827F51E0")]
		public IsaacEngine()
		{
			byte[] array = new byte[IsaacEngine.stateArraySize];
			this.keyStream = array;
			base..ctor();
		}

		// Token: 0x0400764C RID: 30284
		[Token(Token = "0x400764C")]
		private static readonly int sizeL;

		// Token: 0x0400764D RID: 30285
		[Token(Token = "0x400764D")]
		private static readonly int stateArraySize = IsaacEngine.sizeL;

		// Token: 0x0400764E RID: 30286
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400764E")]
		private uint[] engineState;

		// Token: 0x0400764F RID: 30287
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400764F")]
		private uint[] results;

		// Token: 0x04007650 RID: 30288
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4007650")]
		private uint a;

		// Token: 0x04007651 RID: 30289
		[FieldOffset(Offset = "0x24")]
		[Token(Token = "0x4007651")]
		private uint b;

		// Token: 0x04007652 RID: 30290
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4007652")]
		private uint c;

		// Token: 0x04007653 RID: 30291
		[FieldOffset(Offset = "0x2C")]
		[Token(Token = "0x4007653")]
		private int index;

		// Token: 0x04007654 RID: 30292
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4007654")]
		private byte[] keyStream;

		// Token: 0x04007655 RID: 30293
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x4007655")]
		private byte[] workingKey;

		// Token: 0x04007656 RID: 30294
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x4007656")]
		private bool initialised;
	}
}