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Aug2021-Cpp2IL-Dump/Assembly-CSharp/BestHTTP/SecureProtocol/Org/BouncyCastle/Math/EC/Rfc7748/X25519.cs
T
2026-04-10 22:50:51 +02:00

219 lines
6.5 KiB
C#

using System;
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: 0x02001A11 RID: 6673
[Token(Token = "0x2001A11")]
public abstract class X25519
{
// Token: 0x0600A209 RID: 41481 RVA: 0x0022E0A8 File Offset: 0x0022C2A8
[Token(Token = "0x600A209")]
[Address(RVA = "0x1F60380", Offset = "0x1F5F180", VA = "0x181F60380")]
public static bool CalculateAgreement(byte[] k, int kOff, byte[] u, int uOff, byte[] r, int rOff)
{
bool flag;
return !flag;
}
// Token: 0x0600A20A RID: 41482 RVA: 0x0022E0BC File Offset: 0x0022C2BC
[Token(Token = "0x600A20A")]
[Address(RVA = "0x1824CD0", Offset = "0x1823AD0", VA = "0x181824CD0")]
private static uint Decode32(byte[] bs, int off)
{
int length = bs.Length;
int num = off + 1;
throw new NullReferenceException();
}
// Token: 0x0600A20B RID: 41483 RVA: 0x0022E0DC File Offset: 0x0022C2DC
[Token(Token = "0x600A20B")]
[Address(RVA = "0x1F60440", Offset = "0x1F5F240", VA = "0x181F60440")]
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: 0x0600A20C RID: 41484 RVA: 0x0022E12C File Offset: 0x0022C32C
[Token(Token = "0x600A20C")]
[Address(RVA = "0x1F605B0", Offset = "0x1F5F3B0", VA = "0x181F605B0")]
public static void GeneratePrivateKey(SecureRandom random, byte[] k)
{
byte b = k[3];
k[3] = b;
k[3] = b;
}
// Token: 0x0600A20D RID: 41485 RVA: 0x0022E158 File Offset: 0x0022C358
[Token(Token = "0x600A20D")]
[Address(RVA = "0x1F60640", Offset = "0x1F5F440", VA = "0x181F60640")]
public static void GeneratePublicKey(byte[] k, int kOff, byte[] r, int rOff)
{
X25519.ScalarMultBase(k, kOff, r, rOff);
}
// Token: 0x0600A20E RID: 41486 RVA: 0x0022E170 File Offset: 0x0022C370
[Token(Token = "0x600A20E")]
[Address(RVA = "0x1F60650", Offset = "0x1F5F450", VA = "0x181F60650")]
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: 0x0600A20F RID: 41487 RVA: 0x0022E1D0 File Offset: 0x0022C3D0
[Token(Token = "0x600A20F")]
[Address(RVA = "0x1F607B0", Offset = "0x1F5F5B0", VA = "0x181F607B0")]
public static void Precompute()
{
Ed25519.Precompute();
}
// Token: 0x0600A210 RID: 41488 RVA: 0x0022E1E4 File Offset: 0x0022C3E4
[Token(Token = "0x600A210")]
[Address(RVA = "0x1F60B20", Offset = "0x1F5F920", VA = "0x181F60B20")]
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: 0x0600A211 RID: 41489 RVA: 0x0022E43C File Offset: 0x0022C63C
[Token(Token = "0x600A211")]
[Address(RVA = "0x1F60800", Offset = "0x1F5F600", VA = "0x181F60800")]
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: 0x0600A212 RID: 41490 RVA: 0x0022E4F4 File Offset: 0x0022C6F4
[Token(Token = "0x600A212")]
[Address(RVA = "0x3F5100", Offset = "0x3F3F00", VA = "0x1803F5100")]
protected X25519()
{
}
// Token: 0x04006B04 RID: 27396
[Token(Token = "0x4006B04")]
public const int PointSize = 32;
// Token: 0x04006B05 RID: 27397
[Token(Token = "0x4006B05")]
public const int ScalarSize = 32;
// Token: 0x04006B06 RID: 27398
[Token(Token = "0x4006B06")]
private const int C_A = 486662;
// Token: 0x04006B07 RID: 27399
[Token(Token = "0x4006B07")]
private const int C_A24 = 121666;
}
}