niko
351 lines
12 KiB
C#
351 lines
12 KiB
C#
using System;
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using System.Collections;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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using Cpp2IlInjected;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines
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{
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// Token: 0x02001D78 RID: 7544
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[Token(Token = "0x2001D78")]
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public class NaccacheSternEngine : IAsymmetricBlockCipher
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{
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// Token: 0x17001D72 RID: 7538
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// (get) Token: 0x0600BBB9 RID: 48057 RVA: 0x00295DD8 File Offset: 0x00293FD8
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[Token(Token = "0x17001D72")]
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public string AlgorithmName
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{
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[Token(Token = "0x600BBB9")]
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[Address(RVA = "0x272A5E0", Offset = "0x27295E0", VA = "0x18272A5E0", Slot = "4")]
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get
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{
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return "NaccacheStern";
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}
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}
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// Token: 0x0600BBBA RID: 48058 RVA: 0x00295DEC File Offset: 0x00293FEC
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[Token(Token = "0x600BBBA")]
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[Address(RVA = "0x2729430", Offset = "0x2728430", VA = "0x182729430", Slot = "9")]
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public virtual void Init(bool forEncryption, ICipherParameters parameters)
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{
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for (;;)
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{
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this.forEncryption = forEncryption;
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if (parameters == 0 || ((parameters == 0 || (parameters != 0 && parameters != 0)) && (parameters == 0 || parameters != 0)))
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{
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int num = 0;
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this.key = num;
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if (forEncryption)
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{
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return;
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}
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int num2 = 0;
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if (num != 0)
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{
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IList[] array = new IList[num2];
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if (0 >= array)
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{
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return;
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}
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if (array != 0)
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{
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break;
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}
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}
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}
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}
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int num3;
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IList list = Platform.CreateArrayList(num3);
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throw new ArrayTypeMismatchException();
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}
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// Token: 0x17001D73 RID: 7539
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// (set) Token: 0x0600BBBB RID: 48059 RVA: 0x0000220F File Offset: 0x0000040F
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[Token(Token = "0x17001D73")]
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[Obsolete]
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public virtual bool Debug
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{
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[Token(Token = "0x600BBBB")]
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[Address(RVA = "0x4242D0", Offset = "0x4232D0", VA = "0x1804242D0", Slot = "10")]
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set
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{
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throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
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}
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}
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// Token: 0x0600BBBC RID: 48060 RVA: 0x00295E84 File Offset: 0x00294084
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[Token(Token = "0x600BBBC")]
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[Address(RVA = "0x2729370", Offset = "0x2728370", VA = "0x182729370", Slot = "11")]
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public virtual int GetInputBlockSize()
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{
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NaccacheSternKeyParameters naccacheSternKeyParameters = this.key;
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if (!this.forEncryption)
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{
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BigInteger n = naccacheSternKeyParameters.n;
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int num = 0;
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int num2 = n.BitLength;
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num2 += num;
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return num2 + 1;
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}
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int lowerSigmaBound = naccacheSternKeyParameters.lowerSigmaBound;
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return lowerSigmaBound + 7;
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}
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// Token: 0x0600BBBD RID: 48061 RVA: 0x00295ED4 File Offset: 0x002940D4
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[Token(Token = "0x600BBBD")]
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[Address(RVA = "0x27293D0", Offset = "0x27283D0", VA = "0x1827293D0", Slot = "12")]
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public virtual int GetOutputBlockSize()
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{
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NaccacheSternKeyParameters naccacheSternKeyParameters = this.key;
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if (!this.forEncryption)
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{
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int lowerSigmaBound = naccacheSternKeyParameters.lowerSigmaBound;
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return lowerSigmaBound + 7;
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}
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BigInteger n = naccacheSternKeyParameters.n;
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int num = 0;
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int num2 = n.BitLength;
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num2 += num;
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return num2 + 1;
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}
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// Token: 0x0600BBBE RID: 48062 RVA: 0x00295F24 File Offset: 0x00294124
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[Token(Token = "0x600BBBE")]
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[Address(RVA = "0x27298D0", Offset = "0x27288D0", VA = "0x1827298D0", Slot = "13")]
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public virtual byte[] ProcessBlock(byte[] inBytes, int inOff, int length)
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{
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if (this.key != (ulong)0L)
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{
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if (!this.forEncryption)
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{
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}
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BigInteger bigInteger = new BigInteger(1, inBytes, length, length);
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int num = 0;
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if ((this.forEncryption ? 1 : 0) == num)
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{
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IList list = Platform.CreateArrayList();
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if (num >= list)
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{
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BigInteger bigInteger2;
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return bigInteger2.ToByteArray();
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}
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int num2 = 0;
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BigInteger bigInteger4;
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BigInteger bigInteger3 = bigInteger.ModPow(bigInteger4, num2);
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IList list2 = this.lookup[num];
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int intValue = bigInteger3.IntValue;
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if (intValue != -1)
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{
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BigInteger bigInteger5 = BigInteger.ValueOf((long)intValue);
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num++;
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object[] array = new object[6];
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throw new ArrayTypeMismatchException();
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}
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goto IL_B5;
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}
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}
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InvalidOperationException ex = new InvalidOperationException("NaccacheStern engine not initialised");
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IL_B5:
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InvalidCipherTextException ex2 = new InvalidCipherTextException("Lookup failed");
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inBytes[1] = (byte)length;
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throw new ArrayTypeMismatchException();
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}
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// Token: 0x0600BBBF RID: 48063 RVA: 0x00296068 File Offset: 0x00294268
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[Token(Token = "0x600BBBF")]
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[Address(RVA = "0x2729280", Offset = "0x2728280", VA = "0x182729280", Slot = "14")]
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public virtual byte[] Encrypt(BigInteger plain)
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{
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BigInteger n = this.key.n;
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int num = 0;
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int bitLength = n.BitLength;
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num += bitLength;
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num++;
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byte[] array = new byte[num];
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NaccacheSternKeyParameters naccacheSternKeyParameters = this.key;
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BigInteger g = naccacheSternKeyParameters.g;
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BigInteger n2 = naccacheSternKeyParameters.n;
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byte[] array2 = g.ModPow(plain, n2).ToByteArray();
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int length = array2.Length;
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int num2 = array.Length;
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int num3 = 0;
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num2 -= length;
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Array.Copy(array2, num3, array, num2, length);
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return array;
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}
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// Token: 0x0600BBC0 RID: 48064 RVA: 0x002960F4 File Offset: 0x002942F4
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[Token(Token = "0x600BBC0")]
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[Address(RVA = "0x2729040", Offset = "0x2728040", VA = "0x182729040", Slot = "15")]
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public virtual byte[] AddCryptedBlocks(byte[] block1, byte[] block2)
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{
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if (!this.forEncryption)
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{
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}
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int inputBlockSize = this.GetInputBlockSize();
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int inputBlockSize2 = this.GetInputBlockSize();
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BigInteger bigInteger = new BigInteger(1, block1);
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BigInteger bigInteger2 = new BigInteger(1, block2);
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BigInteger bigInteger3 = bigInteger.Multiply(bigInteger2);
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BigInteger n = this.key.n;
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BigInteger bigInteger4 = bigInteger3.Mod(n);
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BigInteger n2 = this.key.n;
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int num = 0;
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int bitLength = n2.BitLength;
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num += bitLength;
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num++;
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byte[] array = new byte[num];
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byte[] array2 = bigInteger4.ToByteArray();
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int length = array2.Length;
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int num2 = array.Length;
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int num3 = 0;
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num2 -= length;
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Array.Copy(array2, num3, array, num2, length);
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return array;
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}
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// Token: 0x0600BBC1 RID: 48065 RVA: 0x002961B4 File Offset: 0x002943B4
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[Token(Token = "0x600BBC1")]
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[Address(RVA = "0x2729F30", Offset = "0x2728F30", VA = "0x182729F30", Slot = "16")]
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public virtual byte[] ProcessData(byte[] data)
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{
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/*
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An exception occurred when decompiling this method (0600BBC1)
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ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.NaccacheSternEngine::ProcessData(System.Byte[])
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---> System.Exception: Basic block has to end with unconditional control flow.
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{
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IL_7D:
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stloc:InvalidCipherTextException(var_13_87, newobj:InvalidCipherTextException(InvalidCipherTextException::.ctor, ldstr:string("cipher returned null")))
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}
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1878
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1846
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at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
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--- End of inner exception stack trace ---
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at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
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at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
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*/;
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}
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// Token: 0x0600BBC2 RID: 48066 RVA: 0x0029624C File Offset: 0x0029444C
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[Token(Token = "0x600BBC2")]
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[Address(RVA = "0x272A110", Offset = "0x2729110", VA = "0x18272A110")]
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private static BigInteger chineseRemainder(IList congruences, IList primes)
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{
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int num;
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BigInteger zero;
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BigInteger bigInteger;
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BigInteger bigInteger4;
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for (;;)
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{
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num = 0;
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zero = BigInteger.Zero;
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BigInteger one = BigInteger.One;
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num += num;
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num++;
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uint num2;
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if (num < (int)num2)
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{
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num += num;
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num++;
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}
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if (num == 0)
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{
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num += num;
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num++;
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num += 19;
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num += num;
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num += 19;
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}
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if (num != 0)
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{
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int num3 = 0;
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bigInteger = one.Multiply(num);
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num++;
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if (num < num3)
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{
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num += num;
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num++;
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}
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if (num >= num)
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{
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goto IL_EE;
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}
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uint num4;
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if (num < (int)num4)
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{
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num += num;
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num++;
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}
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if (num == 0)
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{
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num++;
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num += 19;
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num += 19;
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}
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if (num != 0)
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{
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BigInteger bigInteger2 = bigInteger.Divide(num);
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BigInteger bigInteger3 = bigInteger2.ModInverse(num);
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int num5 = 0;
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bigInteger4 = bigInteger2.Multiply(bigInteger3);
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if (num < num5)
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{
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num += num;
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num++;
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}
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if (num == 0)
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{
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num += num;
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num += 19;
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}
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if (num != 0)
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{
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break;
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}
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}
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}
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}
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BigInteger bigInteger5 = bigInteger4.Multiply(num);
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BigInteger bigInteger6 = zero.Add(bigInteger5);
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num++;
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IL_EE:
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return bigInteger6.Mod(bigInteger);
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}
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// Token: 0x0600BBC3 RID: 48067 RVA: 0x00296358 File Offset: 0x00294558
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[Token(Token = "0x600BBC3")]
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[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
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public NaccacheSternEngine()
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{
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int num = 0;
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this.Debug = num != 0;
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}
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// Token: 0x04007664 RID: 30308
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[FieldOffset(Offset = "0x10")]
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[Token(Token = "0x4007664")]
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private bool forEncryption;
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// Token: 0x04007665 RID: 30309
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[FieldOffset(Offset = "0x18")]
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[Token(Token = "0x4007665")]
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private NaccacheSternKeyParameters key;
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// Token: 0x04007666 RID: 30310
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[FieldOffset(Offset = "0x20")]
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[Token(Token = "0x4007666")]
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private IList[] lookup;
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}
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}
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