Topic: Secure vlx file

[civil.eng]

Hello everyone,
Recently, VLX programs are decompiled easily, and also .FAS files, it's not interesting, because we all have an Autolisp program that we want to keep it safe. so I'm going to find a way to bypass decompilers and keep VLX safe from the tools. what do you think? is there any way or trick to do that?

Thanks in advance.

Decompiler tools can only decompile standard Fas files. My counter measure is to make Fas no longer standard. I can change the instructions of Fas and use some rare instructions. You can also add a goto instruction to it, because there is goto in FAS, but not in LSP.

My main question was about .Vlx not .Fas, does your tools work only on fas file? I don't know about goto, could you secure attached .lsp file for test?? :

[d2010]

Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".

[baitang36]

Hello everyone,
Recently, VLX programs are decompiled easily, and also .FAS files, it's not interesting, because we all have an Autolisp program that we want to keep it safe. so I'm going to find a way to bypass decompilers and keep VLX safe from the tools. what do you think? is there any way or trick to do that?

Thanks in advance.

Decompiler tools can only decompile standard Fas files. My counter measure is to make Fas no longer standard. I can change the instructions of Fas and use some rare instructions. You can also add a goto instruction to it, because there is goto in FAS, but not in LSP.

My main question was about .Vlx not .Fas, does your tools work only on fas file? I don't know about goto, could you secure attached .lsp file for test?? :

sumnum_ pro.fas It's an encrypted file
sumnum.fas.lsp Is the file generated by decompilation

[baitang36]

Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".

Vlx can be decomposed into Fas DCL TXT
Fas can be decompiled into LSP source code
Vlx Fas can also be encrypted
I have free tools to email to 5520971@qq.com Ask for.

[civil.eng]

Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".

Vlx can be decomposed into Fas DCL TXT
Fas can be decompiled into LSP source code
Vlx Fas can also be encrypted
I have free tools to email to 5520971@qq.com Ask for.

I have received it. and I've just checked it out, it's not secure at all, so that I could decompile the fas after encrypt it very easily,
Sorry for say that.

[baitang36]

Q1=My main question was about .Vlx not .Fas, does your tools work only on fas file?
A2=No, he can crack  *.VLX and he crack.Fas files...
A3=If you don't believe me,then  you upload here "civil-eng.vlx" and
I try  extract all files.fas /  from "civil-eng.vlx".

Vlx can be decomposed into Fas DCL TXT
Fas can be decompiled into LSP source code
Vlx Fas can also be encrypted
I have free tools to email to 5520971@qq.com Ask for.

I have received it. and I've just checked it out, it's not secure at all, so that I could decompile the fas after encrypt it very easily,
Sorry for say that.

It's a free version for you, just a demo. The paid version is more complicated than that
At present, there are more than 20 commercial software in use, and there is no source code theft problem。
You can send me a bigger Fas and I'll encrypt it with the paid version。email:5520971@qq.com

[baitang36]

so that I could decompile the fas after encrypt it very easily

try this

[d2010]

so that I could decompile the fas after encrypt it very easily
try this

Many year/s inside all-compilator-s, this question (Q2 down)
(MAI_LISTTOSTREAM   "d:/test_e.fas" (append  '( 01
If you replace the number=000 with other, then you can store the file.fas inside as "String". This benefit you can hide program.fas inside "String/s"
 
Q2=How to avoid the number 000 or \000?

[baitang36]

so that I could decompile the fas after encrypt it very easily
try this

Many year/s inside all-compilator-s, this question (Q2 down)
(MAI_LISTTOSTREAM   "d:/test_e.fas" (append  '( 01
If you replace the number=000 with other, then you can store the file.fas inside as "String". This benefit you can hide program.fas inside "String/s"
 
Q2=How to avoid the number 000 or \000?

My packing program is relatively simple, each character is converted into three digits, which is a bit of a waste of space