using System;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Agreement.Srp
{
	// Token: 0x02001DF3 RID: 7667
	[Token(Token = "0x2001DF3")]
	public class Srp6Utilities
	{
		// Token: 0x0600C04C RID: 49228 RVA: 0x002B65E0 File Offset: 0x002B47E0
		[Token(Token = "0x600C04C")]
		[Address(RVA = "0x25AFF40", Offset = "0x25AEF40", VA = "0x1825AFF40")]
		public static BigInteger CalculateK(IDigest digest, BigInteger N, BigInteger g)
		{
			return Srp6Utilities.HashPaddedPair(digest, N, N, g);
		}

		// Token: 0x0600C04D RID: 49229 RVA: 0x002B65F8 File Offset: 0x002B47F8
		[Token(Token = "0x600C04D")]
		[Address(RVA = "0x25B0080", Offset = "0x25AF080", VA = "0x1825B0080")]
		public static BigInteger CalculateU(IDigest digest, BigInteger N, BigInteger A, BigInteger B)
		{
			return Srp6Utilities.HashPaddedPair(digest, N, A, B);
		}

		// Token: 0x0600C04E RID: 49230 RVA: 0x002B6610 File Offset: 0x002B4810
		[Token(Token = "0x600C04E")]
		[Address(RVA = "0x25B0090", Offset = "0x25AF090", VA = "0x1825B0090")]
		public static BigInteger CalculateX(IDigest digest, BigInteger N, byte[] salt, byte[] identity, byte[] password)
		{
			byte[] array = new byte[0];
			int length = identity.Length;
			int length2 = salt.Length;
			int length3 = array.Length;
			return new BigInteger(1, array);
		}

		// Token: 0x0600C04F RID: 49231 RVA: 0x002B664C File Offset: 0x002B484C
		[Token(Token = "0x600C04F")]
		[Address(RVA = "0x25B0240", Offset = "0x25AF240", VA = "0x1825B0240")]
		public static BigInteger GeneratePrivateValue(IDigest digest, BigInteger N, BigInteger g, SecureRandom random)
		{
			int num = 0;
			int num2 = N.BitLength;
			num2 -= num;
			uint num3;
			num2 = Math.Min((int)num3, num2);
			BigInteger one = BigInteger.One;
			int num4 = num2 - 1;
			BigInteger bigInteger = one.ShiftLeft(num4);
			BigInteger one2 = BigInteger.One;
			BigInteger bigInteger2 = N.Subtract(one2);
			return BigIntegers.CreateRandomInRange(bigInteger, bigInteger2, random);
		}

		// Token: 0x0600C050 RID: 49232 RVA: 0x002B66A4 File Offset: 0x002B48A4
		[Token(Token = "0x600C050")]
		[Address(RVA = "0x25B0700", Offset = "0x25AF700", VA = "0x1825B0700")]
		public static BigInteger ValidatePublicValue(BigInteger N, BigInteger val)
		{
			return val.Mod(N);
		}

		// Token: 0x0600C051 RID: 49233 RVA: 0x002B66CC File Offset: 0x002B48CC
		[Token(Token = "0x600C051")]
		[Address(RVA = "0x25B0070", Offset = "0x25AF070", VA = "0x1825B0070")]
		public static BigInteger CalculateM1(IDigest digest, BigInteger N, BigInteger A, BigInteger B, BigInteger S)
		{
			BigInteger bigInteger;
			return bigInteger;
		}

		// Token: 0x0600C052 RID: 49234 RVA: 0x002B66DC File Offset: 0x002B48DC
		[Token(Token = "0x600C052")]
		[Address(RVA = "0x25B0070", Offset = "0x25AF070", VA = "0x1825B0070")]
		public static BigInteger CalculateM2(IDigest digest, BigInteger N, BigInteger A, BigInteger M1, BigInteger S)
		{
			BigInteger bigInteger;
			return bigInteger;
		}

		// Token: 0x0600C053 RID: 49235 RVA: 0x002B66EC File Offset: 0x002B48EC
		[Token(Token = "0x600C053")]
		[Address(RVA = "0x25AFF60", Offset = "0x25AEF60", VA = "0x1825AFF60")]
		public static BigInteger CalculateKey(IDigest digest, BigInteger N, BigInteger S)
		{
			int num = 0;
			int num2 = N.BitLength;
			num2 += 7;
			num += num2;
			byte[] padded = Srp6Utilities.GetPadded(S, num);
			int length = padded.Length;
			byte[] array = new byte[padded];
			return new BigInteger(1, array);
		}

		// Token: 0x0600C054 RID: 49236 RVA: 0x002B6734 File Offset: 0x002B4934
		[Token(Token = "0x600C054")]
		[Address(RVA = "0x25B0550", Offset = "0x25AF550", VA = "0x1825B0550")]
		private static BigInteger HashPaddedTriplet(IDigest digest, BigInteger N, BigInteger n1, BigInteger n2, BigInteger n3)
		{
			int num = 0;
			int num2 = N.BitLength;
			num2 += 7;
			num2 += num;
			byte[] padded = Srp6Utilities.GetPadded(n1, num2);
			byte[] padded2 = Srp6Utilities.GetPadded(n2, num2);
			int length = padded.Length;
			int length2 = padded2.Length;
			byte[] array2;
			byte[] array = new byte[array2.Length];
			return new BigInteger(1, array);
		}

		// Token: 0x0600C055 RID: 49237 RVA: 0x002B6794 File Offset: 0x002B4994
		[Token(Token = "0x600C055")]
		[Address(RVA = "0x25B03F0", Offset = "0x25AF3F0", VA = "0x1825B03F0")]
		private static BigInteger HashPaddedPair(IDigest digest, BigInteger N, BigInteger n1, BigInteger n2)
		{
			int num = 0;
			int num2 = N.BitLength;
			num2 += 7;
			num2 += num;
			byte[] padded = Srp6Utilities.GetPadded(n1, num2);
			byte[] padded2 = Srp6Utilities.GetPadded(n2, num2);
			int length = padded.Length;
			byte[] array = new byte[padded2.Length];
			return new BigInteger(1, array);
		}

		// Token: 0x0600C056 RID: 49238 RVA: 0x002B67E8 File Offset: 0x002B49E8
		[Token(Token = "0x600C056")]
		[Address(RVA = "0x25B0350", Offset = "0x25AF350", VA = "0x1825B0350")]
		private static byte[] GetPadded(BigInteger n, int length)
		{
			byte[] array = BigIntegers.AsUnsignedByteArray(n);
			if (array.Length < length)
			{
				byte[] array2 = new byte[length];
				int length2 = array.Length;
				int num = 0;
				Array.Copy(array, num, array2, length, length2);
			}
			return array;
		}

		// Token: 0x0600C057 RID: 49239 RVA: 0x002B6828 File Offset: 0x002B4A28
		[Token(Token = "0x600C057")]
		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
		public Srp6Utilities()
		{
		}
	}
}