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: 0x020019DF RID: 6623
	[Token(Token = "0x20019DF")]
	public class X509AttrCertParser
	{
		// Token: 0x06009A65 RID: 39525 RVA: 0x0000220F File Offset: 0x0000040F
		[Token(Token = "0x6009A65")]
		[Address(RVA = "0x414550", Offset = "0x413550", VA = "0x180414550")]
		private IX509AttributeCertificate ReadDerCertificate(Asn1InputStream dIn)
		{
			throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
		}

		// Token: 0x06009A66 RID: 39526 RVA: 0x001F8C84 File Offset: 0x001F6E84
		[Token(Token = "0x6009A66")]
		[Address(RVA = "0x413DE0", Offset = "0x412DE0", VA = "0x180413DE0")]
		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: 0x06009A67 RID: 39527 RVA: 0x001F8CF4 File Offset: 0x001F6EF4
		[Token(Token = "0x6009A67")]
		[Address(RVA = "0x414780", Offset = "0x413780", VA = "0x180414780")]
		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: 0x06009A68 RID: 39528 RVA: 0x001F8D24 File Offset: 0x001F6F24
		[Token(Token = "0x6009A68")]
		[Address(RVA = "0x414230", Offset = "0x413230", VA = "0x180414230")]
		public IX509AttributeCertificate ReadAttrCert(byte[] input)
		{
			int num;
			MemoryStream memoryStream = new MemoryStream(input, num != 0);
			num = 0;
			return this.ReadAttrCert(memoryStream);
		}

		// Token: 0x06009A69 RID: 39529 RVA: 0x001F8D44 File Offset: 0x001F6F44
		[Token(Token = "0x6009A69")]
		[Address(RVA = "0x4142A0", Offset = "0x4132A0", VA = "0x1804142A0")]
		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: 0x06009A6A RID: 39530 RVA: 0x001F8D9C File Offset: 0x001F6F9C
		[Token(Token = "0x6009A6A")]
		[Address(RVA = "0x413F70", Offset = "0x412F70", VA = "0x180413F70")]
		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: 0x06009A6B RID: 39531 RVA: 0x001F8E8C File Offset: 0x001F708C
		[Token(Token = "0x6009A6B")]
		[Address(RVA = "0x414410", Offset = "0x413410", VA = "0x180414410")]
		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: 0x06009A6C RID: 39532 RVA: 0x001F8ECC File Offset: 0x001F70CC
		[Token(Token = "0x6009A6C")]
		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
		public X509AttrCertParser()
		{
		}

		// Token: 0x04006835 RID: 26677
		[Token(Token = "0x4006835")]
		private static readonly PemParser PemAttrCertParser = new PemParser("ATTRIBUTE CERTIFICATE");

		// Token: 0x04006836 RID: 26678
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4006836")]
		private Asn1Set sData;

		// Token: 0x04006837 RID: 26679
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x4006837")]
		private int sDataObjectCount;

		// Token: 0x04006838 RID: 26680
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4006838")]
		private Stream currentStream;
	}
}