Topic: encrypt LISP program into FAS

[baitang36]

The principle is very simple, that is to transform the LISP file into garbled code, and then embed it into a FAS framework to become a FAS file. It is not valid for the standard tool of Fas, which is made by hand. The encryption strength is similar to the original LSP encryption protected provided by Acad. It is enough to protect free software. For software that sells money, it is recommended to buy professional pfas2 x
When the Fas is loaded, it will decrypt the garbled code into a string and load it from memory without generating temporary files.
A function C: l2f is defined in the program
Usage:L2F enter, select the LISP file to be encrypted, and click open to successfully encrypt it.
Note that the size of LISP file cannot exceed 64K, because the definition of string in LSP uses two bytes, and the maximum number that can be represented is 65535
Since binary files are not allowed in the forum, send me a message if you like it. It's free

[JohnK]

I can not, personally use encrypted files at work but it sounds cool. Is this based on the same tool(s) you have been working on all these years?

[myloveflyer]

Wouldn't it be nice to spend less time on encryption programs and more time writing code?

[baitang36]

I can not, personally use encrypted files at work but it sounds cool. Is this based on the same tool(s) you have been working on all these years?

This is a new test

[baitang36]

Wouldn't it be nice to spend less time on encryption programs and more time writing code?

Thank you for your advice

[JohnK]

I can not, personally use encrypted files at work but it sounds cool. Is this based on the same tool(s) you have been working on all these years?

This is a new test

Good luck! I hope it turns out.

[PM]

I have an old lisp encrypt LISP to FAS . I dont know if you are searching something like this

Code - Auto/Visual Lisp: [Select]

1. ;;  LSP2FAS.lsp                                    ; Scot Harris  11-29-2012
2. ;;   Minimizes the sequence needed to create FAS files.
3. ;;   Help facility added.
4. ;;   Streamlined from original program provided by aqdam1978.
5.  
6. (defun c:LSP2FAS-Help (/)
7.  (alert (strcat
8.   "\tLisp (LSP) to Fast and Secure (FAS) Help"
9.   "\n "
10.   "\nFile dialog begins in the current directory.   "
11.   "\nIt is suggested to place and open a drawing (DWG)   "
12.   "\ninside the input folder you wish to batch process.   "
13.   "\n "
14.   "\nOutput file will be in the same folder as the file selected.   "
15.   "\n "
16.   "\nThere is no provisional check for an existing FAS file of the same name.   "
17.  ))
18. );end LSP2FAS-Help
19.  
20. (defun c:LSP2FAS ( / a )
21.  (vl-load-com)
22.  (prompt " Lisp to Fast and Secure (FAS). LSP2FAS-Help available. ")
23.  (if (wcmatch (strcase (setq a (getfiled "Convert LSP File to FAS" (getvar "DWGPREFIX") "" 16))) "*.LSP")
24.   (progn
25.    (c:vlide)(vlisp-compile 'st a)
26.    (princ (strcat "\n File " (vl-string-subst ".fas" ".lsp" a) " created. "))
27.   );progn
28.   (alert "File extension must be \".LSP\"   ")
29.  );if
30.  (princ)
31. );end LSP2FAS
32.  

[JohnK]

I do not think they are. baitang36 writes professional lisp encryption tools.

[baitang36]

I have an old lisp encrypt LISP to FAS . I dont know if you are searching something like this

Code - Auto/Visual Lisp: [Select]

1. ;;  LSP2FAS.lsp                                    ; Scot Harris  11-29-2012
2. ;;   Minimizes the sequence needed to create FAS files.
3. ;;   Help facility added.
4. ;;   Streamlined from original program provided by aqdam1978.
5.  
6. (defun c:LSP2FAS-Help (/)
7.  (alert (strcat
8.   "\tLisp (LSP) to Fast and Secure (FAS) Help"
9.   "\n "
10.   "\nFile dialog begins in the current directory.   "
11.   "\nIt is suggested to place and open a drawing (DWG)   "
12.   "\ninside the input folder you wish to batch process.   "
13.   "\n "
14.   "\nOutput file will be in the same folder as the file selected.   "
15.   "\n "
16.   "\nThere is no provisional check for an existing FAS file of the same name.   "
17.  ))
18. );end LSP2FAS-Help
19.  
20. (defun c:LSP2FAS ( / a )
21.  (vl-load-com)
22.  (prompt " Lisp to Fast and Secure (FAS). LSP2FAS-Help available. ")
23.  (if (wcmatch (strcase (setq a (getfiled "Convert LSP File to FAS" (getvar "DWGPREFIX") "" 16))) "*.LSP")
24.   (progn
25.    (c:vlide)(vlisp-compile 'st a)
26.    (princ (strcat "\n File " (vl-string-subst ".fas" ".lsp" a) " created. "))
27.   );progn
28.   (alert "File extension must be \".LSP\"   ")
29.  );if
30.  (princ)
31. );end LSP2FAS
32.  

This is compiled, not encrypted.
The compiled code can be easily decompiled into the source code. My practice is to become garbled and cannot decompile.

[Rustabout]

My second ever "office" workplace was a key example of the detriment of having code either easily decompiled or stolen. It's very hard to protect property rights / intellectual property with AutoLISP. And sadly, people who write AutoLISP often aren't the one's who benefit from it the most... people who steal it do.
In the office mentioned above, my manager had stolen all of the LISP code from the office he previously had worked at. He was able to leverage that theft to such an extent that the new office was very "successful"... successful as far as profits go, but they are currently dealing with the courts as they did some very bad stuff (unrelated to the code itself but very related to their moral standards). The LISP code was really simple but really good... good enough to allow an incompetent manager to profit heavily from it.

AutoLISP is gradually disappearing, which is a shame because I feel it's actually more useful in practical, real-world applications compared to Dynamo/Grasshopper/whatever else... It's hard to say if all this effort is worth it - is Baitang36's skills and dedication better served towards other pursuits? I myself want to see AutoLISP survive and thrive.

[domenicomaria]

AutoLISP is gradually disappearing . . .

and what do you think about BricsCAD (BLADE) LISP or SolidWorks VLISP compatibility, or GStarCAD and more. . . ?

[Rustabout]

and what do you think about BricsCAD (BLADE) LISP or SolidWorks VLISP compatibility, or GStarCAD and more. . . ?

Don't mistake my comment as saying that LISP should be disappearing; with my inferior programming skills I can actually program more useful utilities quicker in AutoLISP than 90% of Dynamo/Grasshopper users and even some .NET programmers. For actually getting work done it's hard to beat except for top level programmers.

GstarCAD has surprisingly good compatibility with LISP made in ACAD. Better than BricsCAD in fact. GstarCAD lacks some compatibility with block parameters/constraints. I would really like to see them include their own code editor.

BricsCAD's ACAD LISP compatibility was slightly below GstarCAD's. BLADE is very good however (that's an understatement; it's actually the best VLISP editor and by a long shot). BricsCAD seems to be in a bit of a lull development-wise: Lots of new bugs appearing each release. Like GstarCAD they did code from the ground up a while back... so perhaps there's room for improvement. I could see myself switching to BricsCAD if the quality improves in the next couple of years. And I'll probably get the "Lite" version just for BLADE at some point regardless.

Solidworks... is interesting. I heard that they have a LISP API but never read about it until replying to this post. No code editor unfortunately (at least I don't think). Same company as Draftsight (which also uses LISP of course).

There's also ZWCAD, ProgeCAD, and some others I think.

Using Visual Studio Code to edit AutoLISP sucks. And I don't think they even have much support for DCL. Most new programming languages also have modern code editors available. The lack of such is a huge reason we're seeing less young people get into LISP maybe...

[It's Alive!]

BricsCAD's ACAD LISP compatibility was slightly below GstarCAD's.

Care to show examples, test code? Maybe start a new thread, it would be interesting to find these issues and maybe report and get them fixed.
if not, we can at least have the different behaviors documented here at the swamp,

[BIGAL]

I am using Bricscad every day for lisp programming and they are a company listening to its users, they recently updated like 200 VLA functions, they have added extra lisp functions not in Acad, there is subtle differences like polygon. Also programmed in Intellicad many years ago and same had a couple of issues but simple to get around.

The 1st to do a dcl generator will be a winner just look at VBA forms graphical interface or Opendcl.

[Rustabout]

Care to show examples, test code? Maybe start a new thread, it would be interesting to find these issues and maybe report and get them fixed.
if not, we can at least have the different behaviors documented here at the swamp,

I've used a few different versions of BricsCAD (trials) and have a year-old version on my computer right now. The first time I tried BricsCAD I had issues with LISP and dynamic blocks (recurring lock-ups). The program otherwise felt good all around but I needed that functionality unfortunately. I did another trial and for whatever reason the program just didn't suite me at that time. Did ANOTHER trial and liked the program. I also needed a bail-out from a GstarCAD disaster (it had issues with draw order and PDF... the draw order issue seems to be fixed in the latest version... don't bet a large wager on that statement however). In V21 many of my routines using vla-addblock don't work (but work in both GstarCAD and AutoCAD). I broke them down only to find out that vla-addblock itself works but something else in the routine was causing it to crash (with the error saying that there was no function vla-addblock). Many LISP's throw the "filedia" variable (which sucks, specially since you have to restart BricsCAD to reset it - might be fixed in the latest version... hopefully)... actually come to think of it that's the main reason I had to set it aside... such a shame. Compared with the first ever version of BricsCAD I tried, there seems to be tons of these little bugs and quirks always throwing a wrench in the gears. I don't think the filedia issue existed in older versions (among other things). Those using older versions of BricsCAD might have less of the bugs described above. Visiting the BricsCAD forums gives a good overview of what people are experiencing.

The biggest thing I noticed with GstarCAD was that the "command-s" function: It doesn't work. But using the "command" function instead actually works where as in AutoCAD it doesn't work (there must be some sort of drawback but I was lucky enough to avoid it). With such a high degree of compatibility it's unfortunate that they don't get to work on a LISP editor. It was actually the draw order issues and PDF issues that forced me to stop using it. Other issues were that it was crashing a lot. It also wasn't printing transparency (also fixed apparently). That sucked because I had just spent hours adjusting my standards to use screening instead of transparency, only to find the other issues afterwards. GstarCAD also crashes a lot; sometimes randomly and sometimes with specific tasks. The CUI crashes a lot just like it does in ACAD, maybe 2-4x more frequently.

It takes an IMMENSE amount of time to actually test out every LISP on each platform and find each and every difference. I'm burnt out and probably going to use ACAD (do at work anyways) until I have more time and energy to pick a non-acad program. Productivity loss is something you have to be aware of, so forking out the $$$ for ACAD might not be as expensive as one thinks depending on how much you value your free time. A good programmer however can probably get BricsCAD/GstarCAD tuned well enough to avoid any and all productivity loss. I like that these programs are also "lighter" than ACAD in that they load faster, have less lag, etc... I like that hence why I'll have another crack at them in the future.

One thing I also want to explore is combining GstarCAD and BricsCAD. Buying both programs together is cheaper than one ACAD license. Especially if you only need 2D with LISP. Each program's strengths, and what they lack, actually compliment one another. I tested Dynamic Blocks made in GstarCAD in BricsCAD (A little bit at least) and so far almost everything worked. There was some issue with one block but I can't recall at this time. This is another thing I'll test in the future when I have time (and more money hehe).

[domenicomaria]

BricsCAD appears to be the most promising with regards to the Lisp and editor implementation . . .
. . .
I believe that I will soon acquire the perpetual license

[It's Alive!]

GstarCAD and AutoCAD

Did you try ZwCAD? I’ve been very impressed with them lately, out of all the clones, they’re the only one to eat their own dogfood.
If you look inside their install folder, most of their stuff is written in their own ZRX API, even their lisp interpreter is ZRX. The rest of the clones don’t use their own public API internally, so they end up not being as complete… only updated when someone complains. 

Of course this is from a developer perspective, each clone has their strong points, features etc.

Acad is king, it's worth paying for the best when you need it

[domenicomaria]

Is ZwCAD compatible with Visual Lisp and OpenDCL?
(even if Visual Lisp has nothing visual !)

[It's Alive!]

Is ZwCAD compatible with Visual Lisp and OpenDCL?
(even if Visual Lisp has nothing visual !)

I personally haven't explored ZW's visual lisp API, but as var as I know yes, OpenDCL apparently does work.
 

[Rustabout]

Did you try ZwCAD?

I want to try out ZWCAD as it looks quite good... just don't have the time unfortunately. It's also a little pricey; not that pricey but I've already spent quite a bit of money. At least they aren't hocking one of those "maintenance" deals where they claim you get "priority" support (in reality that just means you simply get basic support, and those who don't opt for the maintenance get terrible support). They've also created their own LISP debugger extension for VS Code: https://www.youtube.com/watch?v=AXOf23xGPyQ

I guess what it comes down to is the fact that I feel like I'm paying these companies to do their beta-testing for them. None of them really seem to want to reach out to the community and really find ways to make their software shine. All of these companies have potential. I think it's just a matter of which one decides to smarten up and stop trying to mimic AutoCAD's marketing approach (that being the focus on flashy new features nobody uses over perfecting core functionality). Back in the day Autodesk blitzed it's competition via actually listening to it's customers; that's why their software got so good and why they gained so much market share. They effectively started charging double for their stuff when they went to the subscription model (if you think about how often you would upgrade along with the cost of a perpetual license... around double or more...)... and surprisingly have gotten away with it. None of their competitors have really been able to gain much market share since that switch which is surprising (but I kind of know why).

I think there is huge potential if one of these players decided to up their LISP support. Compare what we have to work with to other languages out there (git packages and extensions for VS Studio Code, etc...). Look at how heavily marketed Dynamo/Grasshopper and the likes are. In spite of very little support LISP is incredibly strong (and useful). But VLIDE is over 20 years old I think. DCL looks like MS DOS lol (but after exploring Window's Forms and WPF I have a lot more respect for it's abilities compared to the skill level required to harness those abilities - it gets work done).

LISP also has a really good community. It's very small but high quality. The tools you can find on this board and sites like Lee's are out of this world! Learning a more popular language you'll find you'll have to sift through lots of "junk" before you find those language's equivalents of what we can quite easily find. I found that first learning Python had me swimming through a sea of garbage before I found half-decent tutorials. And to a lesser extent C#. Not to say either is a bad language.

[BIGAL]

If you join Bricscad forum you will see responses from senior management acknowledging problems and in the case of a VLA problem missing functions around 200 were added, yes in current version but reaction time was swift, complain over at forums/autodesk about something and get told to submit a request to another area even though they have a forum manager, we all know submits where do they end up.

[Rustabout]

If you join Bricscad forum you will see responses from...

I went and had a look just to make sure my conclusions aren't dated; from what I recall the support used to be great but fell off quite a bit. As of right now there are a lot of unanswered questions, and most answered questions appear that they're being answered by community members and not so much senior management (but I'll mention an important exception to that below). That doesn't necessarily mean they aren't working to fix things in the background, but comparing to Autodesk's forums, you're more likely to get faster answers at either Autodesk's forums or Augi's... the caveat being that these are community members and not Autodesk employees; the advantage to having such a large community I guess. I wish people would pay me thousands of dollars per year to do part of my day-job for me  . Support is not as great as it was before they introduced the yearly "maintenance". I'm not sure if it's because of that or simply coincidental. For myself the "maintenance" (along with the insane upgrading fees) was what ultimately prevented me from having a serious go at the BIM component. BIM + LISP is a pretty rad proposition but I can't find much user-created content on BricsCAD BIM (actually I can find absolutely zero user-created videos on it, only those created by the company). Just like Revit someone will have to pioneer effective workflows with it (and that takes a lot of time!). If Revit were released today and BricsCAD BIM went head to head against Revit (and Revit having absolutely no user base) it would do much better, especially given the price. To cap off my digression I'll just say that having a strong user base is sometimes more important than the software itself. Being able to go on YouTube and see what other people create, and how, from start to finish is invaluable.

And the exception mentioned above: The guy that created BLADE answers questions fast and concisely. And also to be fair, none of the other CAD's even has a forum of their own.

[It's Alive!]

Bricsys does have a pretty awesome support system, I know they work hard on that front. Their forums are a bit lame, so I come here first lol.

[baitang36]

My second ever "office" workplace was a key example of the detriment of having code either easily decompiled or stolen. It's very hard to protect property rights / intellectual property with AutoLISP. And sadly, people who write AutoLISP often aren't the one's who benefit from it the most... people who steal it do.
In the office mentioned above, my manager had stolen all of the LISP code from the office he previously had worked at. He was able to leverage that theft to such an extent that the new office was very "successful"... successful as far as profits go, but they are currently dealing with the courts as they did some very bad stuff (unrelated to the code itself but very related to their moral standards). The LISP code was really simple but really good... good enough to allow an incompetent manager to profit heavily from it.

AutoLISP is gradually disappearing, which is a shame because I feel it's actually more useful in practical, real-world applications compared to Dynamo/Grasshopper/whatever else... It's hard to say if all this effort is worth it - is Baitang36's skills and dedication better served towards other pursuits? I myself want to see AutoLISP survive and thrive.

I have studied Fas encryption for more than four years. I want to do something for LISP authors. PFAS, the encryption tool I developed, has more than 70 regular users and costs about $100. No one can decompile the Fas file encrypted with my tool, which is safe enough.

[VovKa]

No one can decompile the Fas file encrypted with my tool, which is safe enough.

maybe no one had tried yet?
i wonder why autodesk never bothered to make smth like that

[baitang36]

No one can decompile the Fas file encrypted with my tool, which is safe enough.

maybe no one had tried yet?
i wonder why autodesk never bothered to make smth like that

http://ys-j.ysepan.com/305999858/014500032/h8734656G3OP4IVst9VKaf/%E8%B4%B1%E4%BA%BA%E5%B7%A5%E5%85%B7%E7%AE%B16.1.rar
This is the user software encrypted with my tool. You can download it and try decompilation.

[VovKa]

http://ys-j.ysepan.com/305999858/014500032/h8734656G3OP4IVst9VKaf/%E8%B4%B1%E4%BA%BA%E5%B7%A5%E5%85%B7%E7%AE%B16.1.rar
This is the user software encrypted with my tool. You can download it and try decompilation.

it says the link has expired
anyway i am not going to decompile it, because i do need it and even do not know how to do it
but i am sure every protection/encryption is going to be cracked, sooner or later

[baitang36]

http://ys-j.ysepan.com/305999858/014500032/h8734656G3OP4IVst9VKaf/%E8%B4%B1%E4%BA%BA%E5%B7%A5%E5%85%B7%E7%AE%B16.1.rar
This is the user software encrypted with my tool. You can download it and try decompilation.

it says the link has expired
anyway i am not going to decompile it, because i do need it and even do not know how to do it
but i am sure every protection/encryption is going to be cracked, sooner or later

every protection/encryption is going to be cracked,this is ture.But the cost of cracking is high enough。
You can find a FAS file and send it to me. I'll encrypt it for you to see 5520971@qq.com

[VovKa]

You can find a FAS file and send it to me. I'll encrypt it for you to see 5520971@qq.com

i don't have any decompilation tools and for me FAS file is just a binary sequence
how do i distinguish encrypted from unencrypted FAS?

[baitang36]

You can find a FAS file and send it to me. I'll encrypt it for you to see 5520971@qq.com

i don't have any decompilation tools and for me FAS file is just a binary sequence
how do i distinguish encrypted from unencrypted FAS?

Binary files can be edited and viewed with WinHex

[BIGAL]

How many Cad users program at the assembler level ? I know of $9,500 software being cracked and that was a exe file. But how many cracked copies got sold ? Oh yeah Autocad Crack.

[d2010]

How many Cad users program at the assembler level ? I know of $9,500 software being cracked and that was a exe file. But how many cracked copies got sold ? Oh yeah Autocad Crack.

Now exists the solution.  , for all CAD (solidwork, catia, zwcad, nanocad...)
You got the encrypte begore (.DeS, and .Fas and .Vlx..ZwC, )
After three months of work inside then Compilator-Lisp-Automatically.exe I
 got these picture.

If the author of "$9,500 software being cracked" was developed, at
 -- concept-Level with jc_lda38*effect,
then anyone, even him-self of (author "$9,500 software"),
he can not restore the ..original-source.
--- The jc_lda38*effect,  is......