using System;
using System.Collections;
using System.IO;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Collections;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.IO;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.X509
{
	// Token: 0x020018FF RID: 6399
	[Token(Token = "0x20018FF")]
	public class X509AttrCertParser
	{
		// Token: 0x06009697 RID: 38551 RVA: 0x0000220F File Offset: 0x0000040F
		[Token(Token = "0x6009697")]
		[Address(RVA = "0x1627410", Offset = "0x1626210", VA = "0x181627410")]
		private IX509AttributeCertificate ReadDerCertificate(Asn1InputStream dIn)
		{
			throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
		}

		// Token: 0x06009698 RID: 38552 RVA: 0x001EFBEC File Offset: 0x001EDDEC
		[Token(Token = "0x6009698")]
		[Address(RVA = "0x1626CA0", Offset = "0x1625AA0", VA = "0x181626CA0")]
		private IX509AttributeCertificate GetCertificate()
		{
			while (this.sData != (ulong)0L)
			{
				Asn1Set asn1Set = this.sData;
				Asn1Encodable asn1Encodable;
				if (this.sDataObjectCount >= asn1Encodable)
				{
					return;
				}
				int num = this.sDataObjectCount;
				Asn1Set asn1Set2 = this.sData;
				int num2 = num + 1;
				this.sDataObjectCount = num2;
				IEnumerator enumerator = asn1Set2.GetEnumerator();
				while (enumerator == 0)
				{
				}
				while (enumerator == 0)
				{
				}
				if (enumerator != 0)
				{
					Asn1Sequence asn1Sequence;
					X509V2AttributeCertificate x509V2AttributeCertificate = new X509V2AttributeCertificate(AttributeCertificate.GetInstance(asn1Sequence));
					return;
				}
			}
		}

		// Token: 0x06009699 RID: 38553 RVA: 0x001EFC5C File Offset: 0x001EDE5C
		[Token(Token = "0x6009699")]
		[Address(RVA = "0x1627640", Offset = "0x1626440", VA = "0x181627640")]
		private IX509AttributeCertificate ReadPemCertificate(Stream inStream)
		{
			Asn1Sequence asn1Sequence = X509AttrCertParser.PemAttrCertParser.ReadPemObject(inStream);
			if (asn1Sequence == 0)
			{
			}
			X509V2AttributeCertificate x509V2AttributeCertificate = new X509V2AttributeCertificate(AttributeCertificate.GetInstance(asn1Sequence));
			throw new NullReferenceException();
		}

		// Token: 0x0600969A RID: 38554 RVA: 0x001EFC8C File Offset: 0x001EDE8C
		[Token(Token = "0x600969A")]
		[Address(RVA = "0x16270F0", Offset = "0x1625EF0", VA = "0x1816270F0")]
		public IX509AttributeCertificate ReadAttrCert(byte[] input)
		{
			int num;
			MemoryStream memoryStream = new MemoryStream(input, num != 0);
			num = 0;
			return this.ReadAttrCert(memoryStream);
		}

		// Token: 0x0600969B RID: 38555 RVA: 0x001EFCAC File Offset: 0x001EDEAC
		[Token(Token = "0x600969B")]
		[Address(RVA = "0x1627160", Offset = "0x1625F60", VA = "0x181627160")]
		public ICollection ReadAttrCerts(byte[] input)
		{
			MemoryStream memoryStream;
			do
			{
				int num;
				memoryStream = new MemoryStream(input, num != 0);
				num = 0;
				IList list = Platform.CreateArrayList();
				int num2 = 0;
				if (this.ReadAttrCert(memoryStream) == 0)
				{
					break;
				}
				int num3 = 0;
				if (num3 < num2)
				{
					num3 += num3;
					num3++;
				}
			}
			while (this.ReadAttrCert(memoryStream) != 0);
			memoryStream += memoryStream;
			throw new NullReferenceException();
		}

		// Token: 0x0600969C RID: 38556 RVA: 0x001EFD04 File Offset: 0x001EDF04
		[Token(Token = "0x600969C")]
		[Address(RVA = "0x1626E30", Offset = "0x1625C30", VA = "0x181626E30")]
		public IX509AttributeCertificate ReadAttrCert(Stream inStream)
		{
			if (inStream != 0)
			{
				inStream.Dispose();
				Stream stream = this.currentStream;
				int num = 0;
				if (stream == 0 || stream != inStream)
				{
					this.sDataObjectCount = num;
					this.sData = num;
					this.currentStream = inStream;
				}
				AttributeCertificate instance;
				X509V2AttributeCertificate x509V2AttributeCertificate;
				if (this.sData == 0)
				{
					PushbackStream pushbackStream = new PushbackStream(inStream);
					int num2;
					pushbackStream.WriteByte((byte)num2);
					if (num2 == 48)
					{
						Asn1InputStream asn1InputStream = new Asn1InputStream(pushbackStream);
						IX509AttributeCertificate ix509AttributeCertificate = this.ReadDerCertificate(asn1InputStream);
					}
					Asn1Sequence asn1Sequence = X509AttrCertParser.PemAttrCertParser.ReadPemObject(pushbackStream);
					if (asn1Sequence != 0)
					{
						instance = AttributeCertificate.GetInstance(asn1Sequence);
						x509V2AttributeCertificate = new X509V2AttributeCertificate(instance);
					}
				}
				AlgorithmIdentifier signatureAlgorithm = instance.signatureAlgorithm;
				ISet criticalExtensionOids = x509V2AttributeCertificate.GetCriticalExtensionOids();
				if (signatureAlgorithm == criticalExtensionOids)
				{
					instance.acinfo = x509V2AttributeCertificate;
					instance.signatureAlgorithm = x509V2AttributeCertificate;
				}
				IX509AttributeCertificate ix509AttributeCertificate2;
				return ix509AttributeCertificate2;
			}
			ArgumentNullException ex = new ArgumentNullException("inStream");
			throw new NullReferenceException();
		}

		// Token: 0x0600969D RID: 38557 RVA: 0x001EFDF4 File Offset: 0x001EDFF4
		[Token(Token = "0x600969D")]
		[Address(RVA = "0x16272D0", Offset = "0x16260D0", VA = "0x1816272D0")]
		public ICollection ReadAttrCerts(Stream inStream)
		{
			do
			{
				IList list = Platform.CreateArrayList();
				int num = 0;
				if (this.ReadAttrCert(inStream) == 0)
				{
					break;
				}
				int num2 = 0;
				if (num2 < num)
				{
					num2 += num2;
					num2++;
				}
			}
			while (this.ReadAttrCert(inStream) != 0);
			throw new NullReferenceException();
		}

		// Token: 0x0600969E RID: 38558 RVA: 0x001EFE34 File Offset: 0x001EE034
		[Token(Token = "0x600969E")]
		[Address(RVA = "0x3F5100", Offset = "0x3F3F00", VA = "0x1803F5100")]
		public X509AttrCertParser()
		{
		}

		// Token: 0x0400667C RID: 26236
		[Token(Token = "0x400667C")]
		private static readonly PemParser PemAttrCertParser = new PemParser("ATTRIBUTE CERTIFICATE");

		// Token: 0x0400667D RID: 26237
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400667D")]
		private Asn1Set sData;

		// Token: 0x0400667E RID: 26238
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x400667E")]
		private int sDataObjectCount;

		// Token: 0x0400667F RID: 26239
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x400667F")]
		private Stream currentStream;
	}
}