using System;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Macs
{
	// Token: 0x02001D31 RID: 7473
	[Token(Token = "0x2001D31")]
	public class HMac : IMac
	{
		// Token: 0x0600B940 RID: 47424 RVA: 0x0028357C File Offset: 0x0028177C
		[Token(Token = "0x600B940")]
		[Address(RVA = "0x25BD270", Offset = "0x25BC270", VA = "0x1825BD270")]
		public HMac(IDigest digest)
		{
			this.digest = digest;
			byte[] array = new byte[0];
			int num = this.digestSize;
			this.inputPad = array;
			byte[] array2 = new byte[num];
			this.outputBuf = array2;
		}

		// Token: 0x17001D2F RID: 7471
		// (get) Token: 0x0600B941 RID: 47425 RVA: 0x002835C0 File Offset: 0x002817C0
		[Token(Token = "0x17001D2F")]
		public virtual string AlgorithmName
		{
			[Token(Token = "0x600B941")]
			[Address(RVA = "0x25BD320", Offset = "0x25BC320", VA = "0x1825BD320", Slot = "11")]
			get
			{
				IDigest digest = this.digest;
				return 0 + "/HMAC";
			}
		}

		// Token: 0x0600B942 RID: 47426 RVA: 0x002835E8 File Offset: 0x002817E8
		[Token(Token = "0x600B942")]
		[Address(RVA = "0x411530", Offset = "0x410530", VA = "0x180411530", Slot = "12")]
		public virtual IDigest GetUnderlyingDigest()
		{
			return this.digest;
		}

		// Token: 0x0600B943 RID: 47427 RVA: 0x002835FC File Offset: 0x002817FC
		[Token(Token = "0x600B943")]
		[Address(RVA = "0x25BCD30", Offset = "0x25BBD30", VA = "0x1825BCD30", Slot = "13")]
		public virtual void Init(ICipherParameters parameters)
		{
			int length2;
			for (;;)
			{
				IDigest digest = this.digest;
				int num = 0;
				if (parameters != 0 && parameters != 0)
				{
					byte[] array;
					int length = array.Length;
					byte[] array2 = this.inputPad;
					int num2 = 0;
					int num3 = 0;
					Array.Copy(array, num3, array2, num2, length);
					IDigest digest2 = this.digest;
					IDigest digest3 = this.digest;
					int num4 = this.digestSize;
					int num5 = this.blockLength;
					byte[] array3 = this.inputPad;
					num5 -= num4;
					Array.Clear(array3, num4, num5);
					int num6 = this.blockLength;
					int num7 = 0;
					byte[] array4 = this.outputBuf;
					int num8 = 0;
					Array.Copy(this.inputPad, num8, array4, num7, num6);
					if (this.blockLength > 0)
					{
						byte[] array5 = this.inputPad;
						num++;
						if (this.blockLength > 0)
						{
							byte[] array6 = this.outputBuf;
							num++;
						}
						if (num != 0)
						{
							IDigest digest4 = this.digest;
							if (num == 0 || num == 0)
							{
								continue;
							}
							int num9 = this.blockLength;
							this.opadState = num;
							if (num == 0 || num == 0)
							{
								continue;
							}
						}
						byte[] array7 = this.inputPad;
						IDigest digest5 = this.digest;
						length2 = array7.Length;
						if (length2 == 0)
						{
							return;
						}
						IDigest digest6 = this.digest;
						if (length2 != 0 && length2 != 0)
						{
							break;
						}
					}
				}
			}
			this.ipadState = length2;
		}

		// Token: 0x0600B944 RID: 47428 RVA: 0x00283750 File Offset: 0x00281950
		[Token(Token = "0x600B944")]
		[Address(RVA = "0x411540", Offset = "0x410540", VA = "0x180411540", Slot = "14")]
		public virtual int GetMacSize()
		{
			return this.digestSize;
		}

		// Token: 0x0600B945 RID: 47429 RVA: 0x00283764 File Offset: 0x00281964
		[Token(Token = "0x600B945")]
		[Address(RVA = "0x25BD1C0", Offset = "0x25BC1C0", VA = "0x1825BD1C0", Slot = "15")]
		public virtual void Update(byte input)
		{
			IDigest digest = this.digest;
			throw new NullReferenceException();
		}

		// Token: 0x0600B946 RID: 47430 RVA: 0x00283780 File Offset: 0x00281980
		[Token(Token = "0x600B946")]
		[Address(RVA = "0x25BCA60", Offset = "0x25BBA60", VA = "0x1825BCA60", Slot = "16")]
		public virtual void BlockUpdate(byte[] input, int inOff, int len)
		{
			IDigest digest = this.digest;
		}

		// Token: 0x0600B947 RID: 47431 RVA: 0x0028379C File Offset: 0x0028199C
		[Token(Token = "0x600B947")]
		[Address(RVA = "0x25BCAE0", Offset = "0x25BBAE0", VA = "0x1825BCAE0", Slot = "17")]
		public virtual int DoFinal(byte[] output, int outOff)
		{
			int num;
			int num5;
			for (;;)
			{
				IDigest digest = this.digest;
				num = this.blockLength;
				IMemoable memoable = this.opadState;
				IDigest digest2 = this.digest;
				if (memoable == 0)
				{
					int length = this.outputBuf.Length;
				}
				if (num != 0 && num != 0)
				{
					IDigest digest3 = this.digest;
					int num2 = this.blockLength;
					IDigest digest4 = this.digest;
					int num3 = this.digestSize;
					int num4 = this.blockLength;
					Array.Clear(this.outputBuf, num4, num3);
					IMemoable memoable2 = this.ipadState;
					IDigest digest5 = this.digest;
					if (memoable2 == 0)
					{
						break;
					}
					if (num5 != 0 && num5 != 0)
					{
						goto Block_5;
					}
				}
			}
			num5 = this.inputPad.Length;
			num5 = num;
			return num5;
			Block_5:
			throw new NullReferenceException();
		}

		// Token: 0x0600B948 RID: 47432 RVA: 0x00283854 File Offset: 0x00281A54
		[Token(Token = "0x600B948")]
		[Address(RVA = "0x25BD140", Offset = "0x25BC140", VA = "0x1825BD140", Slot = "18")]
		public virtual void Reset()
		{
			IDigest digest = this.digest;
			byte[] array = this.inputPad;
			IDigest digest2 = this.digest;
			int length = array.Length;
		}

		// Token: 0x0600B949 RID: 47433 RVA: 0x00283884 File Offset: 0x00281A84
		[Token(Token = "0x600B949")]
		[Address(RVA = "0x25BD220", Offset = "0x25BC220", VA = "0x1825BD220")]
		private static void XorPad(byte[] pad, int len, byte n)
		{
			int num = 0;
			if (len > 0)
			{
				num++;
			}
		}

		// Token: 0x040074D1 RID: 29905
		[Token(Token = "0x40074D1")]
		private const byte IPAD = 54;

		// Token: 0x040074D2 RID: 29906
		[Token(Token = "0x40074D2")]
		private const byte OPAD = 92;

		// Token: 0x040074D3 RID: 29907
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x40074D3")]
		private readonly IDigest digest;

		// Token: 0x040074D4 RID: 29908
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x40074D4")]
		private readonly int digestSize;

		// Token: 0x040074D5 RID: 29909
		[FieldOffset(Offset = "0x1C")]
		[Token(Token = "0x40074D5")]
		private readonly int blockLength;

		// Token: 0x040074D6 RID: 29910
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40074D6")]
		private IMemoable ipadState;

		// Token: 0x040074D7 RID: 29911
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40074D7")]
		private IMemoable opadState;

		// Token: 0x040074D8 RID: 29912
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40074D8")]
		private readonly byte[] inputPad;

		// Token: 0x040074D9 RID: 29913
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40074D9")]
		private readonly byte[] outputBuf;
	}
}