Apr2020-Cpp2Il-Dump/Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/Crypto/Tls/TlsRsaKeyExchange.cs

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

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
{
	// Token: 0x02001B8A RID: 7050
	[Token(Token = "0x2001B8A")]
	public class TlsRsaKeyExchange : AbstractTlsKeyExchange
	{
		// Token: 0x0600AFA1 RID: 44961 RVA: 0x00262D5C File Offset: 0x00260F5C
		[Token(Token = "0x600AFA1")]
		[Address(RVA = "0x19918B0", Offset = "0x19906B0", VA = "0x1819918B0")]
		public TlsRsaKeyExchange(IList supportedSignatureAlgorithms)
			: base(1, supportedSignatureAlgorithms)
		{
		}

		// Token: 0x0600AFA2 RID: 44962 RVA: 0x0000220F File Offset: 0x0000040F
		[Token(Token = "0x600AFA2")]
		[Address(RVA = "0x1991720", Offset = "0x1990520", VA = "0x181991720", Slot = "21")]
		public override void SkipServerCredentials()
		{
			throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
		}

		// Token: 0x0600AFA3 RID: 44963 RVA: 0x00262D74 File Offset: 0x00260F74
		[Token(Token = "0x600AFA3")]
		[Address(RVA = "0x1991640", Offset = "0x1990440", VA = "0x181991640", Slot = "23")]
		public override void ProcessServerCredentials(TlsCredentials serverCredentials)
		{
			this.SkipServerCredentials();
		}

		// Token: 0x0600AFA4 RID: 44964 RVA: 0x00262D88 File Offset: 0x00260F88
		[Token(Token = "0x600AFA4")]
		[Address(RVA = "0x1991430", Offset = "0x1990230", VA = "0x181991430", Slot = "22")]
		public override void ProcessServerCertificate(Certificate serverCertificate)
		{
			X509CertificateStructure[] certificateList;
			for (;;)
			{
				if (serverCertificate.Length == 0)
				{
					certificateList = serverCertificate.GetCertificateList();
					AsymmetricKeyParameter asymmetricKeyParameter = PublicKeyFactory.CreateKey(certificateList.SubjectPublicKeyInfo);
					this.mServerPublicKey = asymmetricKeyParameter;
					if (!asymmetricKeyParameter.privateKey)
					{
						if (asymmetricKeyParameter == 0)
						{
						}
						if (asymmetricKeyParameter != 0)
						{
							break;
						}
					}
				}
			}
			byte[] array = this.GeneratePremasterSecret();
			this.mRsaServerPublicKey = array;
			TlsUtilities.ValidateKeyUsage(certificateList, 32);
			base..ctor();
		}

		// Token: 0x0600AFA5 RID: 44965 RVA: 0x00262DF0 File Offset: 0x00260FF0
		[Token(Token = "0x600AFA5")]
		[Address(RVA = "0x1991770", Offset = "0x1990570", VA = "0x181991770", Slot = "28")]
		public override void ValidateCertificateRequest(CertificateRequest certificateRequest)
		{
			int num;
			do
			{
				string text = certificateRequest.ToString();
				num = 0;
			}
			while (18446744073709551615UL > (ulong)1L && num != 64);
			num++;
		}

		// Token: 0x0600AFA6 RID: 44966 RVA: 0x00262E18 File Offset: 0x00261018
		[Token(Token = "0x600AFA6")]
		[Address(RVA = "0x19912F0", Offset = "0x19900F0", VA = "0x1819912F0", Slot = "30")]
		public override void ProcessClientCredentials(TlsCredentials clientCredentials)
		{
		}

		// Token: 0x0600AFA7 RID: 44967 RVA: 0x00262E28 File Offset: 0x00261028
		[Token(Token = "0x600AFA7")]
		[Address(RVA = "0x1991250", Offset = "0x1990050", VA = "0x181991250", Slot = "32")]
		public override void GenerateClientKeyExchange(Stream output)
		{
			RsaKeyParameters rsaKeyParameters = this.mRsaServerPublicKey;
			byte[] array = TlsRsaUtilities.GenerateEncryptedPreMasterSecret(this.mContext, rsaKeyParameters, output);
			this.mPremasterSecret = array;
		}

		// Token: 0x0600AFA8 RID: 44968 RVA: 0x00262E54 File Offset: 0x00261054
		[Token(Token = "0x600AFA8")]
		[Address(RVA = "0x1991360", Offset = "0x1990160", VA = "0x181991360", Slot = "33")]
		public override void ProcessClientKeyExchange(Stream input)
		{
			if (!TlsUtilities.IsSsl(this.mContext))
			{
				byte[] array = TlsUtilities.ReadOpaque16(input);
			}
			byte[] array2 = Streams.ReadAll(input);
			TlsEncryptionCredentials tlsEncryptionCredentials = this.mServerCredentials;
			this.mPremasterSecret = array2;
		}

		// Token: 0x0600AFA9 RID: 44969 RVA: 0x00262E94 File Offset: 0x00261094
		[Token(Token = "0x600AFA9")]
		[Address(RVA = "0x1991280", Offset = "0x1990080", VA = "0x181991280", Slot = "34")]
		public override byte[] GeneratePremasterSecret()
		{
			byte[] array;
			do
			{
				array = this.mPremasterSecret;
			}
			while (array == 0);
			this.mPremasterSecret = (ulong)0L;
			return array;
		}

		// Token: 0x0600AFAA RID: 44970 RVA: 0x00262EB8 File Offset: 0x002610B8
		[Token(Token = "0x600AFAA")]
		[Address(RVA = "0x1991830", Offset = "0x1990630", VA = "0x181991830", Slot = "35")]
		protected virtual RsaKeyParameters ValidateRsaPublicKey(RsaKeyParameters key)
		{
			while (!key.exponent.IsProbablePrime(2))
			{
			}
			return key;
		}

		// Token: 0x04007068 RID: 28776
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4007068")]
		protected AsymmetricKeyParameter mServerPublicKey;

		// Token: 0x04007069 RID: 28777
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4007069")]
		protected RsaKeyParameters mRsaServerPublicKey;

		// Token: 0x0400706A RID: 28778
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x400706A")]
		protected TlsEncryptionCredentials mServerCredentials;

		// Token: 0x0400706B RID: 28779
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x400706B")]
		protected byte[] mPremasterSecret;
	}
}