using System;
using System.Collections;
using System.Runtime.InteropServices;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Digests
{
	// Token: 0x02001720 RID: 5920
	[Token(Token = "0x2001720")]
	[StructLayout(3)]
	public class SkeinDigest : IDigest, IMemoable
	{
		// Token: 0x06009FF1 RID: 40945 RVA: 0x00251274 File Offset: 0x0024F474
		[Token(Token = "0x6009FF1")]
		[Address(RVA = "0x2251A60", Offset = "0x2250460", VA = "0x182251A60")]
		public SkeinDigest(int stateSizeBits, int digestSizeBits)
		{
			SkeinEngine skeinEngine = new SkeinEngine(stateSizeBits, digestSizeBits);
			this.engine = skeinEngine;
			int num = 0;
			skeinEngine.chain = num;
			skeinEngine.key = num;
			skeinEngine.preMessageParameters = num;
			skeinEngine.postMessageParameters = num;
			skeinEngine.CreateInitialState();
			skeinEngine.ubi.Reset(48);
		}

		// Token: 0x06009FF2 RID: 40946 RVA: 0x002512D0 File Offset: 0x0024F4D0
		[Token(Token = "0x6009FF2")]
		[Address(RVA = "0x22519A0", Offset = "0x22503A0", VA = "0x1822519A0")]
		public SkeinDigest(SkeinDigest digest)
		{
			SkeinEngine skeinEngine = digest.engine;
			bool isPartialBlockOkay = skeinEngine.threefish.IsPartialBlockOkay;
			SkeinEngine skeinEngine2;
			skeinEngine2.CopyIn(skeinEngine);
			this.engine = skeinEngine2;
		}

		// Token: 0x06009FF3 RID: 40947 RVA: 0x0025130C File Offset: 0x0024F50C
		[Token(Token = "0x6009FF3")]
		[Address(RVA = "0x22517A0", Offset = "0x22501A0", VA = "0x1822517A0", Slot = "12")]
		public void Reset(IMemoable other)
		{
			int num;
			SkeinEngine skeinEngine;
			for (;;)
			{
				num = 0;
				if (other != 0)
				{
					skeinEngine = this.engine;
					if (other == 0 || other != 0)
					{
						ThreefishEngine threefish = skeinEngine.threefish;
						bool isPartialBlockOkay = threefish.IsPartialBlockOkay;
						bool isPartialBlockOkay2 = threefish.IsPartialBlockOkay;
						if (isPartialBlockOkay == isPartialBlockOkay2 && skeinEngine.outputSizeBytes == (isPartialBlockOkay2 ? 1 : 0))
						{
							break;
						}
					}
				}
			}
			skeinEngine.CopyIn(num);
		}

		// Token: 0x06009FF4 RID: 40948 RVA: 0x0025136C File Offset: 0x0024F56C
		[Token(Token = "0x6009FF4")]
		[Address(RVA = "0x2251550", Offset = "0x224FF50", VA = "0x182251550", Slot = "11")]
		public IMemoable Copy()
		{
			SkeinEngine skeinEngine = this.engine;
			bool isPartialBlockOkay = skeinEngine.threefish.IsPartialBlockOkay;
			SkeinEngine skeinEngine2;
			skeinEngine2.CopyIn(skeinEngine);
			SkeinDigest skeinDigest;
			skeinDigest.engine = skeinEngine2;
			throw new NullReferenceException();
		}

		// Token: 0x17001924 RID: 6436
		// (get) Token: 0x06009FF5 RID: 40949 RVA: 0x002513A0 File Offset: 0x0024F5A0
		[Token(Token = "0x17001924")]
		public string AlgorithmName
		{
			[Token(Token = "0x6009FF5")]
			[Address(RVA = "0x2251B30", Offset = "0x2250530", VA = "0x182251B30", Slot = "4")]
			get
			{
				object[] array = new object[4];
				if ("Skein-" != 0)
				{
				}
				array[0] = "Skein-";
				bool isPartialBlockOkay = this.engine.threefish.IsPartialBlockOkay;
				if (isPartialBlockOkay)
				{
				}
				array[1] = isPartialBlockOkay;
				if ("-" != 0)
				{
				}
				array[2] = "-";
				int outputSizeBytes = this.engine.outputSizeBytes;
				if (outputSizeBytes != 0)
				{
				}
				array[3] = outputSizeBytes;
				return string.Concat(array);
			}
		}

		// Token: 0x06009FF6 RID: 40950 RVA: 0x00251420 File Offset: 0x0024F620
		[Token(Token = "0x6009FF6")]
		[Address(RVA = "0x5FE710", Offset = "0x5FD110", VA = "0x1805FE710", Slot = "5")]
		public int GetDigestSize()
		{
			return this.engine.outputSizeBytes;
		}

		// Token: 0x06009FF7 RID: 40951 RVA: 0x00251440 File Offset: 0x0024F640
		[Token(Token = "0x6009FF7")]
		[Address(RVA = "0x2251630", Offset = "0x2250030", VA = "0x182251630", Slot = "6")]
		public int GetByteLength()
		{
			string algorithmName = ((IBlockCipher)this.engine.threefish).AlgorithmName;
			throw new NullReferenceException();
		}

		// Token: 0x06009FF8 RID: 40952 RVA: 0x00251464 File Offset: 0x0024F664
		[Token(Token = "0x6009FF8")]
		[Address(RVA = "0x2251670", Offset = "0x2250070", VA = "0x182251670")]
		public void Init(SkeinParameters parameters)
		{
			SkeinEngine skeinEngine = this.engine;
			int num = 0;
			skeinEngine.chain = num;
			skeinEngine.key = num;
			skeinEngine.preMessageParameters = num;
			skeinEngine.postMessageParameters = num;
			if (parameters != 0)
			{
				byte[] key = parameters.GetKey();
				IDictionary parameters2 = parameters.parameters;
				skeinEngine.InitParams(parameters2);
			}
			skeinEngine.CreateInitialState();
			skeinEngine.ubi.Reset(48);
		}

		// Token: 0x06009FF9 RID: 40953 RVA: 0x002514C8 File Offset: 0x0024F6C8
		[Token(Token = "0x6009FF9")]
		[Address(RVA = "0x2251740", Offset = "0x2250140", VA = "0x182251740", Slot = "10")]
		public void Reset()
		{
			SkeinEngine skeinEngine = this.engine;
			ulong[] chain = skeinEngine.chain;
			int length = chain.Length;
			int num = 0;
			ulong[] initialState = skeinEngine.initialState;
			int num2 = 0;
			Array.Copy(initialState, num2, chain, num, length);
			skeinEngine.ubi.Reset(48);
		}

		// Token: 0x06009FFA RID: 40954 RVA: 0x00251518 File Offset: 0x0024F718
		[Token(Token = "0x6009FFA")]
		[Address(RVA = "0x2251940", Offset = "0x2250340", VA = "0x182251940", Slot = "7")]
		public void Update(byte inByte)
		{
			SkeinEngine skeinEngine = this.engine;
			skeinEngine.singleByte[0] = inByte;
			byte[] singleByte = skeinEngine.singleByte;
			int num = 0;
			skeinEngine.Update(singleByte, num, 1);
		}

		// Token: 0x06009FFB RID: 40955 RVA: 0x00251554 File Offset: 0x0024F754
		[Token(Token = "0x6009FFB")]
		[Address(RVA = "0x20F8EE0", Offset = "0x20F78E0", VA = "0x1820F8EE0", Slot = "8")]
		public void BlockUpdate(byte[] inBytes, int inOff, int len)
		{
			this.engine.Update(inBytes, inOff, len);
		}

		// Token: 0x06009FFC RID: 40956 RVA: 0x00251578 File Offset: 0x0024F778
		[Token(Token = "0x6009FFC")]
		[Address(RVA = "0x20F8F10", Offset = "0x20F7910", VA = "0x1820F8F10", Slot = "9")]
		public int DoFinal(byte[] outBytes, int outOff)
		{
			return this.engine.DoFinal(outBytes, outOff);
		}

		// Token: 0x04006901 RID: 26881
		[Token(Token = "0x4006901")]
		public const int SKEIN_256 = 256;

		// Token: 0x04006902 RID: 26882
		[Token(Token = "0x4006902")]
		public const int SKEIN_512 = 512;

		// Token: 0x04006903 RID: 26883
		[Token(Token = "0x4006903")]
		public const int SKEIN_1024 = 1024;

		// Token: 0x04006904 RID: 26884
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4006904")]
		private readonly SkeinEngine engine;
	}
}