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Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/Crypto/Generators/DHParametersHelper.cs

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+using System;
+using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
+using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Multiplier;
+using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
+using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
+using Cpp2IlInjected;
+
+namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Generators
+{
+	// Token: 0x02001D44 RID: 7492
+	[Token(Token = "0x2001D44")]
+	internal class DHParametersHelper
+	{
+		// Token: 0x0600B9EE RID: 47598 RVA: 0x00286584 File Offset: 0x00284784
+		[Token(Token = "0x600B9EE")]
+		[Address(RVA = "0x257D8A0", Offset = "0x257C8A0", VA = "0x18257D8A0")]
+		private static BigInteger[] ConstructBigPrimeProducts(int[] primeProducts)
+		{
+			BigInteger[] array = new BigInteger[primeProducts.Length];
+			int num = 0;
+			if (num < array.Length)
+			{
+				BigInteger bigInteger = BigInteger.ValueOf((long)primeProducts[num]);
+				throw new ArrayTypeMismatchException();
+			}
+			return array;
+		}
+
+		// Token: 0x0600B9EF RID: 47599 RVA: 0x002865D0 File Offset: 0x002847D0
+		[Token(Token = "0x600B9EF")]
+		[Address(RVA = "0x257D9A0", Offset = "0x257C9A0", VA = "0x18257D9A0")]
+		internal static BigInteger[] GenerateSafePrimes(int size, int certainty, SecureRandom random)
+		{
+			BigInteger bigInteger9;
+			BigInteger bigInteger11;
+			ulong num10;
+			do
+			{
+				int num = size - 1;
+				if (size > 32)
+				{
+					int num2 = 0;
+					int num3;
+					BigInteger bigInteger = new BigInteger(certainty, num3, random);
+					num3 = 0;
+					int[][] array = DHParametersHelper.primeLists;
+					BigInteger bigInteger6;
+					if (num2 < array.Length)
+					{
+						BigInteger[] bigPrimeProducts = DHParametersHelper.BigPrimeProducts;
+						BigInteger bigInteger3;
+						BigInteger bigInteger2 = bigInteger.Remainder(bigInteger3);
+						int num4 = 0;
+						int intValue = bigInteger2.IntValue;
+						if (num2 == 0 && size != 2)
+						{
+							BigInteger bigInteger4 = BigInteger.ValueOf((long)size);
+							BigInteger bigInteger5 = bigInteger.Add(bigInteger4);
+							int[] array2 = DHParametersHelper.primeProducts;
+						}
+						int[][] array3 = DHParametersHelper.primeLists;
+						if (num4 != 0 && num4 != random)
+						{
+							num2++;
+							num2++;
+						}
+						BigInteger six = DHParametersHelper.Six;
+						bigInteger6 = bigInteger.Add(six);
+					}
+					uint num5;
+					ulong num6;
+					if (bigInteger6.BitLength != num || !bigInteger6.RabinMillerTest((int)num5, random, num6 != 0UL))
+					{
+						continue;
+					}
+					BigInteger bigInteger7 = bigInteger6.ShiftLeft(1);
+					BigInteger one = BigInteger.One;
+					BigInteger bigInteger8 = bigInteger7.Add(one);
+					ulong num7;
+					ulong num8;
+					if (!bigInteger8.RabinMillerTest(certainty, random, num7 != 0UL) || (certainty > 2 && !bigInteger6.RabinMillerTest(certainty, random, num8 != 0UL)))
+					{
+						continue;
+					}
+					int nafWeight = WNafUtilities.GetNafWeight(bigInteger8);
+					BigInteger[] array4 = new BigInteger[2];
+				}
+				bigInteger9 = new BigInteger(certainty, 2, random);
+				BigInteger bigInteger10 = bigInteger9.ShiftLeft(1);
+				BigInteger one2 = BigInteger.One;
+				bigInteger11 = bigInteger10.Add(one2);
+				ulong num9;
+				if (!bigInteger11.IsProbablePrime(certainty, num9 != 0UL))
+				{
+					break;
+				}
+				while (certainty <= 2)
+				{
+				}
+			}
+			while (bigInteger9.IsProbablePrime(certainty, num10 != 0UL));
+			uint num11;
+			BigInteger bigInteger12 = new BigInteger(certainty, (int)num11, random);
+			bigInteger12.nBitLength = bigInteger11;
+			if (bigInteger12 != 0)
+			{
+			}
+			return bigInteger12;
+		}
+
+		// Token: 0x0600B9F0 RID: 47600 RVA: 0x0028674C File Offset: 0x0028494C
+		[Token(Token = "0x600B9F0")]
+		[Address(RVA = "0x257DFB0", Offset = "0x257CFB0", VA = "0x18257DFB0")]
+		internal static BigInteger SelectGenerator(BigInteger p, BigInteger q, SecureRandom random)
+		{
+			BigInteger two = BigInteger.Two;
+			BigInteger bigInteger = p.Subtract(two);
+			BigInteger bigInteger2 = BigIntegers.CreateRandomInRange(BigInteger.Two, bigInteger, random);
+			BigInteger two2 = BigInteger.Two;
+			BigInteger bigInteger3 = bigInteger2.ModPow(two2, p);
+			while (bigInteger3 != 0)
+			{
+			}
+			return bigInteger3;
+		}
+
+		// Token: 0x0600B9F1 RID: 47601 RVA: 0x00286794 File Offset: 0x00284994
+		[Token(Token = "0x600B9F1")]
+		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
+		public DHParametersHelper()
+		{
+		}
+
+		// Token: 0x0600B9F2 RID: 47602 RVA: 0x002867A8 File Offset: 0x002849A8
+		// Note: this type is marked as 'beforefieldinit'.
+		[Token(Token = "0x600B9F2")]
+		[Address(RVA = "0x257E0F0", Offset = "0x257D0F0", VA = "0x18257E0F0")]
+		static DHParametersHelper()
+		{
+			BigInteger bigInteger;
+			DHParametersHelper.Six = bigInteger;
+			DHParametersHelper.primeLists = BigInteger.primeLists;
+			DHParametersHelper.primeProducts = BigInteger.primeProducts;
+			int[] array = DHParametersHelper.primeProducts;
+			BigInteger[] array2 = new BigInteger[array.Length];
+			int num = 0;
+			if (num < array2.Length)
+			{
+				BigInteger bigInteger2 = BigInteger.ValueOf((long)array[num]);
+				throw new ArrayTypeMismatchException();
+			}
+			DHParametersHelper.BigPrimeProducts = array2;
+		}
+
+		// Token: 0x04007541 RID: 30017
+		[Token(Token = "0x4007541")]
+		private static readonly BigInteger Six;
+
+		// Token: 0x04007542 RID: 30018
+		[Token(Token = "0x4007542")]
+		private static readonly int[][] primeLists;
+
+		// Token: 0x04007543 RID: 30019
+		[Token(Token = "0x4007543")]
+		private static readonly int[] primeProducts;
+
+		// Token: 0x04007544 RID: 30020
+		[Token(Token = "0x4007544")]
+		private static readonly BigInteger[] BigPrimeProducts;
+	}
+}