using System;
using System.Runtime.InteropServices;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Zlib
{
	// Token: 0x0200134C RID: 4940
	[Token(Token = "0x200134C")]
	[StructLayout(3)]
	internal sealed class Adler32
	{
		// Token: 0x06007C9E RID: 31902 RVA: 0x0019EB44 File Offset: 0x0019CD44
		[Token(Token = "0x6007C9E")]
		[Address(RVA = "0x2023640", Offset = "0x2022040", VA = "0x182023640")]
		internal long adler32(long adler, byte[] buf, int index, int len)
		{
			if (buf != 0)
			{
				int length = buf.Length;
				int num = index + 1;
				byte b = buf[num];
				byte b2 = buf[(int)b];
				byte b3 = buf[(int)b2];
				byte b4 = buf[(int)b3];
				byte b5 = buf[(int)b4];
				byte b6 = buf[index];
				byte b7 = buf[(int)b6];
				byte b8 = buf[index];
				byte b9 = buf[(int)b8];
				byte b10 = buf[(int)b9];
				byte b11 = buf[index];
				byte b12 = buf[index];
				byte b14;
				byte b13 = buf[(int)b14];
				byte b15 = b13 + 1;
				b13 = (byte)((long)b13 + adler);
				b13 = (byte)((long)b13 + adler);
				b13 = (byte)((long)b13 + adler);
				b13 = (byte)((long)b13 + adler);
				b13 = (byte)((long)b13 + adler);
				b13 = (byte)((long)b13 + adler);
				int length2 = buf.Length;
				ulong num2;
				num2 += num2;
				long num3 = (long)(num2 * (ulong)65521L);
				ulong num4;
				num4 += num4;
				long num5 = (long)(num4 * (ulong)65521L);
				return adler;
			}
			throw new IndexOutOfRangeException();
		}

		// Token: 0x06007C9F RID: 31903 RVA: 0x0019EC48 File Offset: 0x0019CE48
		[Token(Token = "0x6007C9F")]
		[Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")]
		public Adler32()
		{
		}

		// Token: 0x040058A7 RID: 22695
		[Token(Token = "0x40058A7")]
		private const int BASE = 65521;

		// Token: 0x040058A8 RID: 22696
		[Token(Token = "0x40058A8")]
		private const int NMAX = 5552;
	}
}