using System;
using System.Runtime.InteropServices;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Rfc8032;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Security;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Math.EC.Rfc7748
{
	// Token: 0x02001434 RID: 5172
	[Token(Token = "0x2001434")]
	[StructLayout(3)]
	public abstract class X25519
	{
		// Token: 0x0600862F RID: 34351 RVA: 0x001D6AC4 File Offset: 0x001D4CC4
		[Token(Token = "0x600862F")]
		[Address(RVA = "0x209ADB0", Offset = "0x20997B0", VA = "0x18209ADB0")]
		public static bool CalculateAgreement(byte[] k, int kOff, byte[] u, int uOff, byte[] r, int rOff)
		{
			bool flag;
			return !flag;
		}

		// Token: 0x06008630 RID: 34352 RVA: 0x001D6AD8 File Offset: 0x001D4CD8
		[Token(Token = "0x6008630")]
		[Address(RVA = "0x74C4E0", Offset = "0x74AEE0", VA = "0x18074C4E0")]
		private static uint Decode32(byte[] bs, int off)
		{
			int length = bs.Length;
			int num = off + 1;
			throw new NullReferenceException();
		}

		// Token: 0x06008631 RID: 34353 RVA: 0x001D6AF8 File Offset: 0x001D4CF8
		[Token(Token = "0x6008631")]
		[Address(RVA = "0x209AE70", Offset = "0x2099870", VA = "0x18209AE70")]
		private static void DecodeScalar(byte[] k, int kOff, uint[] n)
		{
			int num = 0;
			int length = k.Length;
			int num2 = kOff + 1;
			byte b = k[k];
			num++;
			n[0] = (uint)b;
			uint num3 = n[3];
			n[3] = num3;
			n[3] = num3;
		}

		// Token: 0x06008632 RID: 34354 RVA: 0x001D6B48 File Offset: 0x001D4D48
		[Token(Token = "0x6008632")]
		[Address(RVA = "0x209AFE0", Offset = "0x20999E0", VA = "0x18209AFE0")]
		public static void GeneratePrivateKey(SecureRandom random, byte[] k)
		{
			byte b = k[3];
			k[3] = b;
			k[3] = b;
		}

		// Token: 0x06008633 RID: 34355 RVA: 0x001D6B74 File Offset: 0x001D4D74
		[Token(Token = "0x6008633")]
		[Address(RVA = "0x209B070", Offset = "0x2099A70", VA = "0x18209B070")]
		public static void GeneratePublicKey(byte[] k, int kOff, byte[] r, int rOff)
		{
			X25519.ScalarMultBase(k, kOff, r, rOff);
		}

		// Token: 0x06008634 RID: 34356 RVA: 0x001D6B8C File Offset: 0x001D4D8C
		[Token(Token = "0x6008634")]
		[Address(RVA = "0x209B080", Offset = "0x2099A80", VA = "0x18209B080")]
		private static void PointDouble(int[] x, int[] z)
		{
			int[] array = new int[10];
			int[] array2 = new int[10];
			X25519Field.Apm(x, z, array, array2);
			X25519Field.Sqr(array, array);
			X25519Field.Sqr(array2, array2);
			X25519Field.Mul(array, array2, x);
			X25519Field.Sub(array, array2, array);
			X25519Field.Mul(array, 121666, z);
			X25519Field.Add(z, array2, z);
			X25519Field.Mul(z, array, z);
		}

		// Token: 0x06008635 RID: 34357 RVA: 0x001D6BEC File Offset: 0x001D4DEC
		[Token(Token = "0x6008635")]
		[Address(RVA = "0x209B1E0", Offset = "0x2099BE0", VA = "0x18209B1E0")]
		public static void Precompute()
		{
			Ed25519.Precompute();
		}

		// Token: 0x06008636 RID: 34358 RVA: 0x001D6C00 File Offset: 0x001D4E00
		[Token(Token = "0x6008636")]
		[Address(RVA = "0x209B550", Offset = "0x2099F50", VA = "0x18209B550")]
		public static void ScalarMult(byte[] k, int kOff, byte[] u, int uOff, byte[] r, int rOff)
		{
			uint[] array = new uint[8];
			X25519.DecodeScalar(k, kOff, array);
			int[] array2 = new int[10];
			X25519Field.Decode(u, uOff, array2);
			int[] array3 = new int[10];
			int num = 0;
			int num2 = array2[num];
			num++;
			array3[0] = num2;
			int[] array4 = new int[10];
			uint num3;
			array4[0] = (int)num3;
			int[] array5 = new int[10];
			array5[0] = (int)num3;
			int[] array6 = new int[10];
			int[] array7 = new int[10];
			int[] array8 = new int[10];
			X25519Field.Apm(array5, array6, array7, array5);
			X25519Field.Apm(array3, array4, array6, array3);
			X25519Field.Mul(array7, array3, array7);
			X25519Field.Mul(array5, array6, array5);
			X25519Field.Sqr(array6, array6);
			X25519Field.Sqr(array3, array3);
			int num4 = 0;
			int num5 = array6[num4];
			num4++;
			array8[0] = num5;
			uint num6;
			X25519Field.Mul(array8, (int)num6, array4);
			int num7 = 0;
			int num8 = array3[num7];
			num7++;
			X25519Field.Mul(array4, array8, array4);
			X25519Field.Mul(array3, array6, array3);
			int num9 = 0;
			int num10 = array7[num9];
			int num11 = array5[num9];
			array5[0] = num8;
			num10 -= num11;
			num9++;
			array6[0] = num10;
			X25519Field.Sqr(array5, array5);
			X25519Field.Sqr(array6, array6);
			X25519Field.Mul(array6, array2, array6);
			int num12 = 0;
			int num13 = array5[num12];
			num12++;
			array5[0] = num13;
			int num14 = 0;
			num14++;
			array6[0] = num13;
			int num15 = 0;
			int[] array9 = new int[10];
			int[] array10 = new int[10];
			X25519Field.Apm(array3, array4, array9, array10);
			X25519Field.Sqr(array9, array9);
			X25519Field.Sqr(array10, array10);
			X25519Field.Mul(array9, array10, array3);
			num15++;
			uint num16;
			X25519Field.Mul(array9, (int)num16, array4);
			int num17 = array10[num15];
			num15++;
			X25519Field.Mul(array4, array9, array4);
			num15++;
			X25519Field.Inv(array4, array4);
			X25519Field.Mul(array3, array4, array3);
			int num18 = array3[4];
			X25519Field.Reduce(array3, num18);
			X25519Field.Reduce(array3, num18);
		}

		// Token: 0x06008637 RID: 34359 RVA: 0x001D6E58 File Offset: 0x001D5058
		[Token(Token = "0x6008637")]
		[Address(RVA = "0x209B230", Offset = "0x2099C30", VA = "0x18209B230")]
		public static void ScalarMultBase(byte[] k, int kOff, byte[] r, int rOff)
		{
			int[] array = new int[10];
			int[] array2 = new int[10];
			byte[] array3 = new byte[32];
			Ed25519.PruneScalar(k, kOff, array3);
			Ed25519.PointAccum pointAccum = new Ed25519.PointAccum();
			Ed25519.ScalarMultBase(array3, pointAccum);
			int[] y = pointAccum.y;
			int num = 0;
			int num2 = y[num];
			num++;
			array[0] = num2;
			int num3 = pointAccum.z[num];
			num++;
			array2[0] = num3;
			X25519Field.Apm(array2, array, array, array2);
			X25519Field.Inv(array2, array2);
			X25519Field.Mul(array, array2, array);
			X25519Field.Normalize(array);
			int num4 = 0;
			X25519Field.Encode128(array, num4, r, rOff);
			X25519Field.Encode128(array, 5, r, rOff);
		}

		// Token: 0x06008638 RID: 34360 RVA: 0x001D6F10 File Offset: 0x001D5110
		[Token(Token = "0x6008638")]
		[Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")]
		protected X25519()
		{
		}

		// Token: 0x04005CC1 RID: 23745
		[Token(Token = "0x4005CC1")]
		public const int PointSize = 32;

		// Token: 0x04005CC2 RID: 23746
		[Token(Token = "0x4005CC2")]
		public const int ScalarSize = 32;

		// Token: 0x04005CC3 RID: 23747
		[Token(Token = "0x4005CC3")]
		private const int C_A = 486662;

		// Token: 0x04005CC4 RID: 23748
		[Token(Token = "0x4005CC4")]
		private const int C_A24 = 121666;
	}
}