niko
236 lines
8.8 KiB
C#
236 lines
8.8 KiB
C#
using System;
|
|
using System.Runtime.InteropServices;
|
|
using BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
|
|
using Cpp2IlInjected;
|
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines
|
|
{
|
|
// Token: 0x020016BA RID: 5818
|
|
[Token(Token = "0x20016BA")]
|
|
[StructLayout(3)]
|
|
public class IesEngine
|
|
{
|
|
// Token: 0x06009C0A RID: 39946 RVA: 0x00235240 File Offset: 0x00233440
|
|
[Token(Token = "0x6009C0A")]
|
|
[Address(RVA = "0x2124FF0", Offset = "0x21239F0", VA = "0x182124FF0")]
|
|
public IesEngine(IBasicAgreement agree, IDerivationFunction kdf, IMac mac)
|
|
{
|
|
this.agree = agree;
|
|
this.kdf = kdf;
|
|
this.mac = mac;
|
|
byte[] array = new byte[0];
|
|
this.macBuf = array;
|
|
}
|
|
|
|
// Token: 0x06009C0B RID: 39947 RVA: 0x0023527C File Offset: 0x0023347C
|
|
[Token(Token = "0x6009C0B")]
|
|
[Address(RVA = "0x2124F50", Offset = "0x2123950", VA = "0x182124F50")]
|
|
public IesEngine(IBasicAgreement agree, IDerivationFunction kdf, IMac mac, BufferedBlockCipher cipher)
|
|
{
|
|
this.agree = agree;
|
|
this.kdf = kdf;
|
|
this.mac = mac;
|
|
byte[] array = new byte[0];
|
|
this.macBuf = array;
|
|
this.cipher = 0;
|
|
}
|
|
|
|
// Token: 0x06009C0C RID: 39948 RVA: 0x002352C0 File Offset: 0x002334C0
|
|
[Token(Token = "0x6009C0C")]
|
|
[Address(RVA = "0x2124C80", Offset = "0x2123680", VA = "0x182124C80", Slot = "4")]
|
|
public virtual void Init(bool forEncryption, ICipherParameters privParameters, ICipherParameters pubParameters, ICipherParameters iesParameters)
|
|
{
|
|
this.forEncryption = forEncryption;
|
|
this.privParam = privParameters;
|
|
this.pubParam = pubParameters;
|
|
this.param = 0;
|
|
}
|
|
|
|
// Token: 0x06009C0D RID: 39949 RVA: 0x002352EC File Offset: 0x002334EC
|
|
[Token(Token = "0x6009C0D")]
|
|
[Address(RVA = "0x21241E0", Offset = "0x2122BE0", VA = "0x1821241E0")]
|
|
private byte[] DecryptBlock(byte[] in_enc, int inOff, int inLen, byte[] z)
|
|
{
|
|
/*
|
|
An exception occurred when decompiling this method (06009C0D)
|
|
|
|
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines.IesEngine::DecryptBlock(System.Byte[],System.Int32,System.Int32,System.Byte[])
|
|
|
|
---> System.Exception: Basic block has to end with unconditional control flow.
|
|
{
|
|
IL_130:
|
|
stloc:InvalidCipherTextException(var_34_13A, newobj:InvalidCipherTextException(InvalidCipherTextException::.ctor, ldstr:string("Invalid MAC.")))
|
|
}
|
|
|
|
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
|
|
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
|
|
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
|
|
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
|
|
--- End of inner exception stack trace ---
|
|
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
|
|
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
|
|
*/;
|
|
}
|
|
|
|
// Token: 0x06009C0E RID: 39950 RVA: 0x00235434 File Offset: 0x00233634
|
|
[Token(Token = "0x6009C0E")]
|
|
[Address(RVA = "0x21246D0", Offset = "0x21230D0", VA = "0x1821246D0")]
|
|
private byte[] EncryptBlock(byte[] input, int inOff, int inLen, byte[] z)
|
|
{
|
|
int num;
|
|
int num2;
|
|
for (;;)
|
|
{
|
|
byte[] derivation = this.param.derivation;
|
|
IesParameters iesParameters = this.param;
|
|
num = iesParameters.macKeySize;
|
|
if (this.cipher == (ulong)0L)
|
|
{
|
|
goto IL_A2;
|
|
}
|
|
if (iesParameters != 0)
|
|
{
|
|
num2 = 0;
|
|
if (iesParameters != 0)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
num += typeof(IesWithCipherParameters).TypeHandle;
|
|
KdfParameters kdfParameters;
|
|
byte[] array = this.GenerateKdfBytes(kdfParameters, num2);
|
|
string algorithmName = this.cipher.AlgorithmName;
|
|
int blockSize = this.cipher.GetBlockSize();
|
|
byte[] array2 = new byte[inLen];
|
|
BufferedBlockCipher bufferedBlockCipher = this.cipher;
|
|
BufferedBlockCipher bufferedBlockCipher2 = this.cipher;
|
|
IMac mac = this.mac;
|
|
byte[] array3 = new byte[0];
|
|
int num3 = 0;
|
|
int num4 = 0;
|
|
Array.Copy(array2, num4, array3, num3, inLen);
|
|
IL_A2:
|
|
IMac mac2 = this.mac;
|
|
byte[] array4 = new byte[0];
|
|
int num5 = 0;
|
|
if (inLen != 0)
|
|
{
|
|
num5++;
|
|
while (num5 != inLen)
|
|
{
|
|
}
|
|
}
|
|
byte[] array5;
|
|
KeyParameter keyParameter = new KeyParameter(array5, inLen, num);
|
|
IesParameters iesParameters2 = this.param;
|
|
IMac mac3 = this.mac;
|
|
byte[] encoding = iesParameters2.encoding;
|
|
IMac mac4 = this.mac;
|
|
IMac mac5 = this.mac;
|
|
int length = encoding.Length;
|
|
IMac mac6 = this.mac;
|
|
return array4;
|
|
}
|
|
|
|
// Token: 0x06009C0F RID: 39951 RVA: 0x00235554 File Offset: 0x00233754
|
|
[Token(Token = "0x6009C0F")]
|
|
[Address(RVA = "0x2124B70", Offset = "0x2123570", VA = "0x182124B70")]
|
|
private byte[] GenerateKdfBytes(KdfParameters kParam, int length)
|
|
{
|
|
byte[] array = new byte[length];
|
|
IDerivationFunction derivationFunction = this.kdf;
|
|
IDerivationFunction derivationFunction2 = this.kdf;
|
|
int num = 0;
|
|
int length2 = array.Length;
|
|
if (num < derivationFunction)
|
|
{
|
|
num += num;
|
|
num++;
|
|
}
|
|
return array;
|
|
}
|
|
|
|
// Token: 0x06009C10 RID: 39952 RVA: 0x00235598 File Offset: 0x00233798
|
|
[Token(Token = "0x6009C10")]
|
|
[Address(RVA = "0x2124D40", Offset = "0x2123740", VA = "0x182124D40", Slot = "5")]
|
|
public virtual byte[] ProcessBlock(byte[] input, int inOff, int inLen)
|
|
{
|
|
int num;
|
|
byte[] array3;
|
|
do
|
|
{
|
|
num = 0;
|
|
IBasicAgreement basicAgreement = this.agree;
|
|
IBasicAgreement basicAgreement2 = this.agree;
|
|
ICipherParameters cipherParameters = this.pubParam;
|
|
if (num < basicAgreement)
|
|
{
|
|
num += num;
|
|
num++;
|
|
}
|
|
IBasicAgreement basicAgreement3 = this.agree;
|
|
byte[] array2;
|
|
if (this.forEncryption)
|
|
{
|
|
byte[] array = this.EncryptBlock(input, inOff, inLen, array2);
|
|
}
|
|
array3 = this.DecryptBlock(input, inOff, inLen, array2);
|
|
int length = array2.Length;
|
|
int num2 = 0;
|
|
Array.Clear(array2, num2, length);
|
|
if (num != -1)
|
|
{
|
|
}
|
|
}
|
|
while (num != 0);
|
|
return array3;
|
|
}
|
|
|
|
// Token: 0x0400665F RID: 26207
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
|
|
[Token(Token = "0x400665F")]
|
|
private readonly IBasicAgreement agree;
|
|
|
|
// Token: 0x04006660 RID: 26208
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
|
|
[Token(Token = "0x4006660")]
|
|
private readonly IDerivationFunction kdf;
|
|
|
|
// Token: 0x04006661 RID: 26209
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
|
|
[Token(Token = "0x4006661")]
|
|
private readonly IMac mac;
|
|
|
|
// Token: 0x04006662 RID: 26210
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
|
|
[Token(Token = "0x4006662")]
|
|
private readonly BufferedBlockCipher cipher;
|
|
|
|
// Token: 0x04006663 RID: 26211
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
|
|
[Token(Token = "0x4006663")]
|
|
private readonly byte[] macBuf;
|
|
|
|
// Token: 0x04006664 RID: 26212
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
|
|
[Token(Token = "0x4006664")]
|
|
private bool forEncryption;
|
|
|
|
// Token: 0x04006665 RID: 26213
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
|
|
[Token(Token = "0x4006665")]
|
|
private ICipherParameters privParam;
|
|
|
|
// Token: 0x04006666 RID: 26214
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x48")]
|
|
[Token(Token = "0x4006666")]
|
|
private ICipherParameters pubParam;
|
|
|
|
// Token: 0x04006667 RID: 26215
|
|
[global::Cpp2IlInjected.FieldOffset(Offset = "0x50")]
|
|
[Token(Token = "0x4006667")]
|
|
private IesParameters param;
|
|
}
|
|
}
|