Re: How to protect data in executable file?

From: Valery Pryamikov (valery_at_harper.no)
Date: 05/14/05

  • Next message: Nicole Calinoiu: "Re: Possible security error loading an Xsl?" 
    Date: Sat, 14 May 2005 10:05:55 +0200

    Hi,
    You can't hide data inside your executable. That's just it. You can
    obfuscate details of your algorithm, but you can never hide data inside your
    executable. That even has formal mathematical prove.

    Anyway, you can check a couple of my blog posts about Obfuscation and
    Program Licensing here:
    http://www.harper.no/valery/PermaLink,guid,24c827f1-50a9-4bd5-82fa-4af09f81e849.aspx
    http://www.harper.no/valery/PermaLink,guid,0f90cf89-2689-4b7f-8d50-84c964795f3e.aspx

    -Valery.
    http://www.harper.no/valery

    "SpIcH" <vangasd@gmail.com> wrote in message
    news:OjrmWP9VFHA.584@TK2MSFTNGP15.phx.gbl...
    > Hi All,
    >
    > This is all about protecting my data in Executable file.
    >
    > I have developed a program in Visual Basic .NET 2002. I have many
    > questions in mind... please help me to complete my project.
    >
    > 1. I have very much data to be incorporated into the executable file. I
    > have to add much data into my developed program into 2 Combo Boxes and 1
    > List Box control. For that i have created an xml element with all of the
    > data i required. The program was running nice. But when i accidentally
    > opened that file into notepad, I shocked. I was able to see everything
    > what
    > i have created in the xml element and it contains all passwords. please
    > help
    > me how can i solve my problem?
    >
    > 2. In the same time i was able to see all the functions and sub routine
    > names i have used in my code. Its another shock for me. please help me how
    > to protect these names from the people.
    >
    > 3. What is the best way to incorporate large data into an executable
    > file. I can not create either xml file or mdb like that. because there is
    > possiblity that people can get that xml file and get all the data. I
    > literally want to protect my data completely as it contains many passwords
    > and usernames.
    >
    > 4. One of my friend told that there exists some software like softice
    > which will debug everything in executable file and gets the code. is this
    > true. if yes what happens to my program? is it can be cracked or can be
    > reproduced? please help me a way to protect my program and code from the
    > thefts.
    >
    > 5. I am running another executable file from my program. in the
    > background i am giving the filename with password using shell function. is
    > there is any chance for the people to find out what is passing to the
    > executable file? if yes, what is the right way to start a program by
    > sending
    > the password to that file, but to stop the theft.
    >
    > Please help me in the above problems.
    >
    > waiting for the replies.
    >
    > With Regards
    >
    >
    >

  • Next message: Nicole Calinoiu: "Re: Possible security error loading an Xsl?"