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Board index FiveWin for Harbour/xHarbour EXE passwords are visible in plain
Otto
Posts: 6983
Joined: Fri Oct 07, 2005 07:07 PM
Re: EXE passwords are visible in plain
Posted: Sat Nov 10, 2018 09:10 PM
Hello Silvio
please look into your exe file:



This is what I mean.
Best regards
Otto
Otto
Posts: 6983
Joined: Fri Oct 07, 2005 07:07 PM
Re: EXE passwords are visible in plain
Posted: Sat Nov 10, 2018 09:15 PM
Silvio
with the solution from Cristobal the Exe looks like this.
Best regards
Otto

Silvio.Falconi
Posts: 7317
Joined: Thu Oct 18, 2012 07:17 PM
Re: EXE passwords are visible in plain
Posted: Sat Nov 10, 2018 10:56 PM
1) I not use decript/cript function of Fivewin
2) I not insert any password type encript(strin,youpw)
3) the string cifrated is on file ascii ( or file INI)

I not understood where you found "Antonio Linares from fivetechsoft!" if the text is cripted with aes and insert on inifile




then each string cifrated is insert on inifile

the tlicense class have 9 line cifrated

sample :
[License]
A1=fCnznWM2uspAO9DYIHdc9A==
B1=aRuXjXPV/cld
C1=cS/3ZdI2u0VOD9gwYFfbdlkgpQ==
D1=GfFepkQYvEtbD4zA0fTbek0IycPQk+psSk3Kwrei
F1=by2bpYd3uUFPJw==
G1=VB3nbTY8L2wVk7WyNT1IXQOU8LE0WnlLBNHzsFNrb0xB0vLXYn1oCULTleZ0ei0KQ7Sk8HM/LgskhbL3NjwvbBWTtbI1PUhdA5TwsTRaeUs=
E1=GYu6N0YcvHgal4G6Nd3bek0IycPQk+psSk3Kwrei
H1=GYu6N0YcP2gal4G6Nd3D2QCK7KEw+znKSk3Kwrei
I1=Fsl2fg==


how do you go back to the original data without having the hexadecimal key, where would you see the information?

I not Put the string or the password or the hexadecimal key on exe file !!!!!

the exe read the extern file ( txt or Ini)



for a sample : ( I insert this on my exe)

Code (fw): Select all Collapse
lDemo:=.f.
oLicense:=Tlicense():New(Lic.ini")
oLicense:Readlicense()

If !olicense:lNoFileLicenseFile
       If oLicense:lValidLicenseFile

       // date or days expiration limit 
            If oLicense:LicenseFileExpiredOn
                  cSay:=oLicense:DateExpiredOn
             endif

       // runcount limit 
....
       //one year free license
.....
      //no expiration - free mode
.....
   endif
endif
Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)

I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com
Silvio.Falconi
Posts: 7317
Joined: Thu Oct 18, 2012 07:17 PM
Re: EXE passwords are visible in plain
Posted: Sun Nov 11, 2018 06:19 PM

Otto,
I sent U a test.exe with User.lic file

see if you can see the data info on exe or on User.lic

When I made the first version of the program for the beaches I had problems because my program liked and was copied in several bathing establishments,
so I had to protect myself by checking the hard drive, the motherboard, the Bios this for each license.

Naturally, like you, I thought of inserting passwords in the application, but as you know, it's wrong.

With my system I could give for example 12 licenses per year, one for each month, the check if the license is in time is not done on the system date but that taken on the Internet. With my system it is difficult but very difficult to crack the application.

Who wants to crack my applications should know the hexadecimal key to unprotect the strings created with aes, know the reference number that is different for each computer and I'm not talking about nHserial, and then know the algorithm with which the exe checks every string, I know there are around people able to do this but it's really difficult ....

Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)

I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com
Giovany Vecchi
Posts: 244
Joined: Mon Jun 05, 2006 09:39 PM
Re: EXE passwords are visible in plain
Posted: Sun Nov 11, 2018 11:42 PM
To encrypt and be able to save in files, tables fields or inside the executable I use these functions.
Try this:

cTextEnc: = TXT_ENCRYPT_CHR ("MyText", "TxtOptionSave.txt")

Example: 29,45,81,2,112,131

Code (fw): Select all Collapse
FUNCTION TXT_ENCRYPT_CHR(f_cTxtEncrypt, f_cFileNameTxtSalva, f_lQuebraLinha)
  LOCAL cEncry := ""
  LOCAL nFor := 0, cCode := "", nQuebraLinha := 0
  
  Default f_lQuebraLinha := .F.
  
  cEnCry := ENCRYPT(f_cTxtEncrypt,"#Pwh@!")
  
  If !f_lQuebraLinha
    FOR nFor := 1 TO LEN(cEncry)
        cCode += alltrim(str(ASC(SUBSTR(cEncry,nFor,1)))) + ","
    NEXT
    
    cCode := Substr(cCode,1,Len(cCode)-1)
  Else
    FOR nFor := 1 TO LEN(cEncry)
      If nQuebraLinha == 0
        cCode += "cVariavel += |"
      EndIf
      nQuebraLinha ++
      cCode += alltrim(str(ASC(SUBSTR(cEncry,nFor,1)))) + ","
      If nQuebraLinha > 29
        cCode += "|"+CRLF
        nQuebraLinha := 0
      EndIf
    NEXT
    cCode := Substr(cCode,1,Len(cCode)-1)
    cCode += "|"+CRLF
    cCode := StrTran(cCode,"|",Chr(34))
  EndIf
    
  If !Hb_isNil(f_cFileNameTxtSalva)
    Hb_MEMOWRIT(f_cFileNameTxtSalva,cCode)
  EndIf  
  
RETURN AllTrim(cCode)
///////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////
FUNCTION TXT_DECRYPT_CHR(f_cTxtEncrypt)
  LOCAL cEncry := "", aChrs := {}
  LOCAL nFor := 0, cCode := ""

  aChrs := Hb_aTokens(f_cTxtEncrypt,",")
  
  FOR nFor := 1 TO LEN(aChrs)
      cCode += Chr(Val(aChrs[nFor]))
  NEXT
  
  cCode := Alltrim(Decrypt(cCode,"#Pwh@!"))
  
RETURN cCode
Silvio.Falconi
Posts: 7317
Joined: Thu Oct 18, 2012 07:17 PM
Re: EXE passwords are visible in plain
Posted: Sun Nov 11, 2018 11:55 PM
you must allways insert a password

cEnCry := ENCRYPT(f_cTxtEncrypt,"#Pwh@!")

if the user have these function and Know "#Pwh@!" can open the app easy

the problem of Otto is the password "#Pwh@!" is showed on exe ( with a Pe editor)
Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)

I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com
Giovany Vecchi
Posts: 244
Joined: Mon Jun 05, 2006 09:39 PM
Re: EXE passwords are visible in plain
Posted: Mon Nov 12, 2018 12:23 AM

You can change to stay exclusively from your program

Example: ".% B>?" or "67! 9)"

Silvio.Falconi
Posts: 7317
Joined: Thu Oct 18, 2012 07:17 PM
Re: EXE passwords are visible in plain
Posted: Mon Nov 12, 2018 01:27 AM

No
Perhaps I not explain good

Otto Problem is
Otto need to inser two data info to make an update of a application
Otto must insert on exe the user and the password to access to the web site to update the new version of application
Otto saw if compile a test with Password into, ( also make a encrypt) he can see with a Peditor the password he inserted
Also eachone purchase his application can see this password , Otto are searching a method to hide this password
I sad to Otto to hide the data info into a extern file and not on exe file

Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)

I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com
goosfancito
Posts: 1956
Joined: Fri Oct 07, 2005 07:08 PM
Re: EXE passwords are visible in plain
Posted: Thu May 02, 2019 01:56 PM

Hola.

Podrian poner la solucion final de CRISTOBAL?
me interesó

Gracias.
Gustavo

FWH 21.02
Harbour 3.2.0dev (r2104281802)
Copyright (c) 1999-2021, https://harbour.github.io/
Baxajaun
Posts: 990
Joined: Wed Oct 19, 2005 02:17 PM
Re: EXE passwords are visible in plain
Posted: Thu May 02, 2019 02:01 PM
Gustavo,

lo que quieras ocultar ponlo entre #pragma TEXTHIDDEN(1) y #pragma TEXTHIDDEN(0)

Revisa https://github.com/harbour/core/blob/master/doc/pragma.txt

Saludos
goosfancito
Posts: 1956
Joined: Fri Oct 07, 2005 07:08 PM
Re: EXE passwords are visible in plain
Posted: Thu May 02, 2019 02:04 PM

gracias

FWH 21.02
Harbour 3.2.0dev (r2104281802)
Copyright (c) 1999-2021, https://harbour.github.io/
goosfancito
Posts: 1956
Joined: Fri Oct 07, 2005 07:08 PM
Re: EXE passwords are visible in plain
Posted: Thu May 02, 2019 02:07 PM

veo que utilizan un programa para ver el contenido de un .exe
podrian decirme cual es?

gracias.

FWH 21.02
Harbour 3.2.0dev (r2104281802)
Copyright (c) 1999-2021, https://harbour.github.io/
Baxajaun
Posts: 990
Joined: Wed Oct 19, 2005 02:17 PM
Re: EXE passwords are visible in plain
Posted: Thu May 02, 2019 06:56 PM

Gustavo,

imagino que cualquier editor hexadecimal te servirá.

Saludos,

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