using System;
using System.IO;
using System.Runtime.InteropServices;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Encodings;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Tls
{
	// Token: 0x020015AF RID: 5551
	[Token(Token = "0x20015AF")]
	[StructLayout(3)]
	public abstract class TlsRsaUtilities
	{
		// Token: 0x060093D9 RID: 37849 RVA: 0x0020B920 File Offset: 0x00209B20
		[Token(Token = "0x60093D9")]
		[Address(RVA = "0x1E05020", Offset = "0x1E03A20", VA = "0x181E05020")]
		public static byte[] GenerateEncryptedPreMasterSecret(TlsContext context, RsaKeyParameters rsaServerPublicKey, Stream output)
		{
			byte[] array = new byte[48];
			int num;
			array[0] = (byte)num;
			char c;
			bool needParenthesis = c.NeedParenthesis;
			array[0] = (needParenthesis ? 1 : 0);
			Pkcs1Encoding pkcs1Encoding = new Pkcs1Encoding(new RsaBlindedEngine());
			ParametersWithRandom parametersWithRandom;
			pkcs1Encoding.Init(true, parametersWithRandom);
			int length = array.Length;
			int num2 = 0;
			byte[] array2 = pkcs1Encoding.ProcessBlock(array, num2, length);
			bool flag;
			if (!flag)
			{
				TlsUtilities.WriteOpaque16(array2, output);
			}
			int num3 = output.ReadByte();
			return array;
		}

		// Token: 0x060093DA RID: 37850 RVA: 0x0020B998 File Offset: 0x00209B98
		[Token(Token = "0x60093DA")]
		[Address(RVA = "0x1E05340", Offset = "0x1E03D40", VA = "0x181E05340")]
		public static byte[] SafeDecryptPreMasterSecret(TlsContext context, RsaKeyParameters rsaServerPrivateKey, byte[] encryptedPreMasterSecret)
		{
			byte[] array = new byte[48];
			byte[] array2 = Arrays.Clone(array);
			Pkcs1Encoding pkcs1Encoding = new Pkcs1Encoding(new RsaBlindedEngine(), array);
			int num = 0;
			ParametersWithRandom parametersWithRandom;
			pkcs1Encoding.Init(num != 0, parametersWithRandom);
			int length = encryptedPreMasterSecret.Length;
			int num2 = 0;
			byte[] array3 = pkcs1Encoding.ProcessBlock(encryptedPreMasterSecret, num2, length);
			int num3 = 0;
			byte b;
			array3[0] = b;
			num3++;
			return array3;
		}

		// Token: 0x060093DB RID: 37851 RVA: 0x0020BA18 File Offset: 0x00209C18
		[Token(Token = "0x60093DB")]
		[Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")]
		protected TlsRsaUtilities()
		{
		}
	}
}