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.IO;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.X509
{
	// Token: 0x02001901 RID: 6401
	[Token(Token = "0x2001901")]
	public class X509CertPairParser
	{
		// Token: 0x060096A6 RID: 38566 RVA: 0x001EFF74 File Offset: 0x001EE174
		[Token(Token = "0x60096A6")]
		[Address(RVA = "0x1628F80", Offset = "0x1627D80", VA = "0x181628F80")]
		private X509CertificatePair ReadDerCrossCertificatePair(Stream inStream)
		{
			Asn1Object asn1Object;
			do
			{
				asn1Object = new Asn1InputStream(inStream).ReadObject();
				if (asn1Object == 0)
				{
				}
			}
			while (asn1Object == 0);
			CertificatePair instance = CertificatePair.GetInstance(asn1Object);
			X509CertificateStructure forward = instance.forward;
			X509CertificatePair x509CertificatePair;
			if (forward != 0)
			{
				X509Certificate x509Certificate = new X509Certificate(forward);
				x509CertificatePair.forward = x509Certificate;
			}
			X509CertificateStructure reverse = instance.reverse;
			if (reverse != 0)
			{
				X509Certificate x509Certificate2 = new X509Certificate(reverse);
				x509CertificatePair.reverse = x509Certificate2;
			}
			return x509CertificatePair;
		}

		// Token: 0x060096A7 RID: 38567 RVA: 0x001EFFE4 File Offset: 0x001EE1E4
		[Token(Token = "0x60096A7")]
		[Address(RVA = "0x1628C60", Offset = "0x1627A60", VA = "0x181628C60")]
		public X509CertificatePair ReadCertPair(byte[] input)
		{
			int num;
			MemoryStream memoryStream = new MemoryStream(input, num != 0);
			num = 0;
			return this.ReadCertPair(memoryStream);
		}

		// Token: 0x060096A8 RID: 38568 RVA: 0x001F0004 File Offset: 0x001EE204
		[Token(Token = "0x60096A8")]
		[Address(RVA = "0x1628E10", Offset = "0x1627C10", VA = "0x181628E10")]
		public ICollection ReadCertPairs(byte[] input)
		{
			MemoryStream memoryStream;
			do
			{
				int num;
				memoryStream = new MemoryStream(input, num != 0);
				num = 0;
				IList list = Platform.CreateArrayList();
				int num2 = 0;
				if (this.ReadCertPair(memoryStream) == 0)
				{
					break;
				}
				int num3 = 0;
				if (num3 < num2)
				{
					num3 += num3;
					num3++;
				}
			}
			while (this.ReadCertPair(memoryStream) != 0);
			memoryStream += memoryStream;
			throw new NullReferenceException();
		}

		// Token: 0x060096A9 RID: 38569 RVA: 0x001F005C File Offset: 0x001EE25C
		[Token(Token = "0x60096A9")]
		[Address(RVA = "0x1628970", Offset = "0x1627770", VA = "0x181628970")]
		public X509CertificatePair ReadCertPair(Stream inStream)
		{
			if (inStream != 0)
			{
				inStream.Dispose();
				Stream stream = this.currentStream;
				if (stream == 0 || stream != inStream)
				{
					this.currentStream = inStream;
				}
				PushbackStream pushbackStream = new PushbackStream(inStream);
				int num;
				pushbackStream.WriteByte((byte)num);
				Asn1Object asn1Object = new Asn1InputStream(pushbackStream).ReadObject();
				if (asn1Object == 0)
				{
				}
				if (asn1Object == 0)
				{
					throw new NullReferenceException();
				}
				CertificatePair instance = CertificatePair.GetInstance(asn1Object);
				X509CertificateStructure forward = instance.forward;
				X509CertificatePair x509CertificatePair;
				if (forward != 0)
				{
					X509Certificate x509Certificate = new X509Certificate(forward);
					x509CertificatePair.forward = x509Certificate;
				}
				X509CertificateStructure reverse = instance.reverse;
				if (reverse != 0)
				{
					X509Certificate x509Certificate2 = new X509Certificate(reverse);
					x509CertificatePair.reverse = x509Certificate2;
				}
			}
			ArgumentNullException ex = new ArgumentNullException("inStream");
			throw new NullReferenceException();
		}

		// Token: 0x060096AA RID: 38570 RVA: 0x001F0130 File Offset: 0x001EE330
		[Token(Token = "0x60096AA")]
		[Address(RVA = "0x1628CD0", Offset = "0x1627AD0", VA = "0x181628CD0")]
		public ICollection ReadCertPairs(Stream inStream)
		{
			do
			{
				IList list = Platform.CreateArrayList();
				int num = 0;
				if (this.ReadCertPair(inStream) == 0)
				{
					break;
				}
				int num2 = 0;
				if (num2 < num)
				{
					num2 += num2;
					num2++;
				}
			}
			while (this.ReadCertPair(inStream) != 0);
			throw new NullReferenceException();
		}

		// Token: 0x060096AB RID: 38571 RVA: 0x001F0170 File Offset: 0x001EE370
		[Token(Token = "0x60096AB")]
		[Address(RVA = "0x3F5100", Offset = "0x3F3F00", VA = "0x1803F5100")]
		public X509CertPairParser()
		{
		}

		// Token: 0x04006681 RID: 26241
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x4006681")]
		private Stream currentStream;
	}
}