27Aug2021-Cpp2IL-Dump/Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/Crypto/Tls/TlsMac.cs

using System;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Macs;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
{
	// Token: 0x02001C5F RID: 7263
	[Token(Token = "0x2001C5F")]
	public class TlsMac
	{
		// Token: 0x0600B2FC RID: 45820 RVA: 0x0026A66C File Offset: 0x0026886C
		[Token(Token = "0x600B2FC")]
		[Address(RVA = "0x4A9CB0", Offset = "0x4A8CB0", VA = "0x1804A9CB0")]
		public TlsMac(TlsContext context, IDigest digest, byte[] key, int keyOff, int keyLen)
		{
			this.context = context;
			KeyParameter keyParameter;
			byte[] array = Arrays.Clone(keyParameter.GetKey());
			this.secret = array;
			if (digest != 0)
			{
			}
			this.digestBlockSize = (int)((uint)128);
			this.digestOverhead = (int)((uint)16);
			if (!TlsUtilities.IsSsl(context))
			{
				HMac hmac = new HMac(digest);
				this.mac = hmac;
			}
			Ssl3Mac ssl3Mac;
			ssl3Mac.digest = digest;
			ssl3Mac.padLength = (int)((uint)48);
			this.mac = ssl3Mac;
			if (ssl3Mac == (ulong)20L)
			{
				this.digestOverhead = (int)((ulong)4L);
			}
			IMac mac = this.mac;
			IMac mac2 = this.mac;
			this.macLength = ssl3Mac;
			int num = Math.Min(this.macLength, 10);
			this.macLength = num;
		}

		// Token: 0x17001C54 RID: 7252
		// (get) Token: 0x0600B2FD RID: 45821 RVA: 0x0026A730 File Offset: 0x00268930
		[Token(Token = "0x17001C54")]
		public virtual byte[] MacSecret
		{
			[Token(Token = "0x600B2FD")]
			[Address(RVA = "0x4157B0", Offset = "0x4147B0", VA = "0x1804157B0", Slot = "4")]
			get
			{
				return this.secret;
			}
		}

		// Token: 0x17001C55 RID: 7253
		// (get) Token: 0x0600B2FE RID: 45822 RVA: 0x0026A744 File Offset: 0x00268944
		[Token(Token = "0x17001C55")]
		public virtual int Size
		{
			[Token(Token = "0x600B2FE")]
			[Address(RVA = "0x4257C0", Offset = "0x4247C0", VA = "0x1804257C0", Slot = "5")]
			get
			{
				return this.macLength;
			}
		}

		// Token: 0x0600B2FF RID: 45823 RVA: 0x0026A758 File Offset: 0x00268958
		[Token(Token = "0x600B2FF")]
		[Address(RVA = "0x4A99B0", Offset = "0x4A89B0", VA = "0x1804A99B0", Slot = "6")]
		public virtual byte[] CalculateMac(long seqNo, byte type, byte[] message, int offset, int length)
		{
			TlsContext tlsContext = this.context;
			byte[] array = new byte[11];
			int num = 0;
			TlsUtilities.WriteUint64(seqNo, array, num);
			TlsUtilities.WriteUint8(type, array, 8);
			bool flag;
			if (!flag)
			{
			}
			IMac mac = this.mac;
			int length2 = array.Length;
			IMac mac2 = this.mac;
			return MacUtilities.DoFinal(this.mac);
		}

		// Token: 0x0600B300 RID: 45824 RVA: 0x0026A7B8 File Offset: 0x002689B8
		[Token(Token = "0x600B300")]
		[Address(RVA = "0x4A9780", Offset = "0x4A8780", VA = "0x1804A9780", Slot = "7")]
		public virtual byte[] CalculateMacConstantTime(long seqNo, byte type, byte[] message, int offset, int length, int fullLength, byte[] dummyData)
		{
			int size = this.Size;
			bool flag = TlsUtilities.IsSsl(this.context);
			byte[] array;
			byte[] array2;
			array -= array2;
			int num = 0;
			IMac mac = this.mac;
			num += num;
			num++;
			IMac mac2 = this.mac;
			num += 4;
			num += 19;
			IMac mac3 = this.mac;
			throw new NullReferenceException();
		}

		// Token: 0x0600B301 RID: 45825 RVA: 0x0026A818 File Offset: 0x00268A18
		[Token(Token = "0x600B301")]
		[Address(RVA = "0x4A9C10", Offset = "0x4A8C10", VA = "0x1804A9C10", Slot = "8")]
		protected virtual int GetDigestBlockCount(int inputLength)
		{
			int num = this.digestOverhead;
			return num + inputLength;
		}

		// Token: 0x0600B302 RID: 45826 RVA: 0x0026A834 File Offset: 0x00268A34
		[Token(Token = "0x600B302")]
		[Address(RVA = "0x4A9C20", Offset = "0x4A8C20", VA = "0x1804A9C20", Slot = "9")]
		protected virtual byte[] Truncate(byte[] bs)
		{
			int num = this.macLength;
			if (bs.Length > num)
			{
				return Arrays.CopyOf(bs, num);
			}
			return bs;
		}

		// Token: 0x040071D6 RID: 29142
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x40071D6")]
		protected readonly TlsContext context;

		// Token: 0x040071D7 RID: 29143
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x40071D7")]
		protected readonly byte[] secret;

		// Token: 0x040071D8 RID: 29144
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40071D8")]
		protected readonly IMac mac;

		// Token: 0x040071D9 RID: 29145
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40071D9")]
		protected readonly int digestBlockSize;

		// Token: 0x040071DA RID: 29146
		[FieldOffset(Offset = "0x2C")]
		[Token(Token = "0x40071DA")]
		protected readonly int digestOverhead;

		// Token: 0x040071DB RID: 29147
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40071DB")]
		protected readonly int macLength;
	}
}