ChallengeResponse.cs

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using System;
using System.Globalization;
using System.Security.Cryptography;
using System.Text;
 
namespace Mono.Security.Protocol.Ntlm
{
    // Token: 0x02000039 RID: 57
    [Obsolete("Use of this API is highly discouraged, it selects legacy-mode LM/NTLM authentication, which sends your password in very weak encryption over the wire even if the server supports the more secure NTLMv2 / NTLMv2 Session. You need to use the new `Type3Message (Type2Message)' constructor to use the more secure NTLMv2 / NTLMv2 Session authentication modes. These require the Type 2 message from the server to compute the response.")]
    public class ChallengeResponse : IDisposable
    {
        // Token: 0x060001B0 RID: 432 RVA: 0x00007DE8 File Offset: 0x00005FE8
        public ChallengeResponse()
        {
        }
 
        // Token: 0x060001B1 RID: 433 RVA: 0x00007DFC File Offset: 0x00005FFC
        public ChallengeResponse(string password, byte[] challenge)
        {
            this.Password = password;
            this.Challenge = challenge;
        }
 
        // Token: 0x060001B2 RID: 434 RVA: 0x00007E18 File Offset: 0x00006018
        protected override void Finalize()
        {
            if (!this._disposed)
            {
                this.Dispose();
            }
            base.Finalize();
        }
 
        // Token: 0x1700007F RID: 127
        // (set) Token: 0x060001B3 RID: 435 RVA: 0x00007E5C File Offset: 0x0000605C
        public string Password
        {
            set
            {
                while (this._disposed)
                {
                }
                DES des = DES.Create();
                if (value != null)
                {
                    int stringLength = value._stringLength;
                    long num = 0L;
                    byte[] array = this.PasswordToKey(value, (int)num);
                    byte[] lmpwd = this._lmpwd;
                    return;
                }
                byte[] lmpwd2 = this._lmpwd;
                if (value == null)
                {
                    return;
                }
                int stringLength2 = value._stringLength;
                int num2 = 7;
                byte[] array2 = this.PasswordToKey(value, num2);
                byte[] lmpwd3 = this._lmpwd;
            }
        }
 
        // Token: 0x17000080 RID: 128
        // (set) Token: 0x060001B4 RID: 436 RVA: 0x00007F10 File Offset: 0x00006110
        public byte[] Challenge
        {
            set
            {
                if (value != null)
                {
                    if (!this._disposed)
                    {
                        object obj;
                        if (obj == null)
                        {
                            return;
                        }
                        if (obj != null)
                        {
                            this._challenge = obj;
                            throw new InvalidCastException();
                        }
                    }
                    throw new InvalidCastException();
                }
            }
        }
 
        // Token: 0x17000081 RID: 129
        // (get) Token: 0x060001B5 RID: 437 RVA: 0x00007F44 File Offset: 0x00006144
        public byte[] LM
        {
            get
            {
                while (this._disposed)
                {
                }
                byte[] lmpwd = this._lmpwd;
                return this.GetResponse(lmpwd);
            }
        }
 
        // Token: 0x17000082 RID: 130
        // (get) Token: 0x060001B6 RID: 438 RVA: 0x00007F68 File Offset: 0x00006168
        public byte[] NT
        {
            get
            {
                while (this._disposed)
                {
                }
                byte[] ntpwd = this._ntpwd;
                return this.GetResponse(ntpwd);
            }
        }
 
        // Token: 0x060001B7 RID: 439 RVA: 0x00007F8C File Offset: 0x0000618C
        public void Dispose()
        {
            long num = 0L;
            this.Dispose(num != 0L);
            if (!true)
            {
            }
            GC.SuppressFinalize(this);
        }
 
        // Token: 0x060001B8 RID: 440 RVA: 0x00007FAC File Offset: 0x000061AC
        private void Dispose(bool disposing)
        {
            if (!this._disposed)
            {
                byte[] lmpwd = this._lmpwd;
                byte[] ntpwd = this._ntpwd;
                if (this._challenge != null)
                {
                }
                this._disposed = true;
            }
        }
 
        // Token: 0x060001B9 RID: 441 RVA: 0x00007FE0 File Offset: 0x000061E0
        private byte[] GetResponse(byte[] pwd)
        {
            /*
An exception occurred when decompiling this method (060001B9)
 
ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Byte[] Mono.Security.Protocol.Ntlm.ChallengeResponse::GetResponse(System.Byte[])
 
 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
    Block_0:
    stloc:DES(var_2_0A, call:DES(DES::Create))
    stloc:uint8[](var_5_13, ldfld:uint8[](ChallengeResponse::_challenge, ldloc:ChallengeResponse(this)))
    stloc:uint8[](var_8_1E, ldfld:uint8[](ChallengeResponse::_challenge, ldloc:ChallengeResponse(this)))
    stloc:uint8[](var_11_2A, ldfld:uint8[](ChallengeResponse::_challenge, ldloc:ChallengeResponse(this)))
}
 
   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 1683
*/;
        }
 
        // Token: 0x060001BA RID: 442 RVA: 0x00008018 File Offset: 0x00006218
        private byte[] PrepareDESKey(byte[] key56bits, int position)
        {
        }
 
        // Token: 0x060001BB RID: 443 RVA: 0x00008028 File Offset: 0x00006228
        private byte[] PasswordToKey(string password, int position)
        {
            int stringLength = password._stringLength;
            int num = 7;
            int num2 = Math.Min(0, num);
            Encoding ascii = Encoding.ASCII;
            CultureInfo currentCulture = CultureInfo.CurrentCulture;
            string text = password.ToUpper(currentCulture);
            byte[] array;
            return array;
        }
 
        // Token: 0x060001BC RID: 444 RVA: 0x00008068 File Offset: 0x00006268
        // Note: this type is marked as 'beforefieldinit'.
        static ChallengeResponse()
        {
        }
 
        // Token: 0x040000CD RID: 205
        private static byte[] magic;
 
        // Token: 0x040000CE RID: 206
        private static byte[] nullEncMagic;
 
        // Token: 0x040000CF RID: 207
        private bool _disposed;
 
        // Token: 0x040000D0 RID: 208
        private byte[] _challenge;
 
        // Token: 0x040000D1 RID: 209
        private byte[] _lmpwd;
 
        // Token: 0x040000D2 RID: 210
        private byte[] _ntpwd;
    }
}