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  1. #1
    Registered User
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    Mar 2003
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    Luttenberg (Netherlands)
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    577

    Encryption of SIS file contents

    Hi,

    there is tools like UnSIS which allows you to retrieve the contents of a SIS file. Is it possible to encrypt the contents of a SIS file? The SIS file should still be installable (and decrypt during install), but it should not be possible to retrieve the contents of the SIS file without having access to a password or key preferably.

    So what I am looking for is a kind of bifurcator for Symbian code. Does that exist?

    BR,

    Rene
    Rene Heuven
    Inmote - Creative Smartphone Solutions
    Web: www.inmote.com
    E-mail: rene@inmote.com

  2. #2
    Nokia Developer Moderator
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    Mar 2003
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    Lempäälä/Finland
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    29,166

    Re: Encryption of SIS file contents

    AFAIK the installer in Symbian devices is not supporting encrypting thus you could encrypt content that can be decrypted by your appliction, but not the sis file itself

  3. #3
    Super Contributor
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    Nov 2004
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    Wiltshire, UK
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    3,644

    Re: Encryption of SIS file contents

    You could encrypt the sis file and then put it as a normal file inside a wrapper sis file, but then of course your wrapper application would still need to decrypt the sis file at some point to install it.
    Download Symbian OS now! [url]http://developer.symbian.org[/url]

  4. #4
    Registered User
    Join Date
    Dec 2008
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    10

    Re: Encryption of SIS file contents

    Hi Paul,

    sounds like a good suggestion - just a bit more work then I had hope for .

    BR,

    Rene

  5. #5
    Super Contributor
    Join Date
    Nov 2004
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    Wiltshire, UK
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    3,644

    Re: Encryption of SIS file contents

    LOL, Rene you just reminded me of my sig!
    Download Symbian OS now! [url]http://developer.symbian.org[/url]

  6. #6
    Nokia Developer Moderator
    Join Date
    Sep 2004
    Location
    Tampere, Finland
    Posts
    11,359

    Re: Encryption of SIS file contents

    Quote Originally Posted by Paul.Todd View Post
    In S60 there is no such thing as a simple problem, only a really really complicated solution
    LOL

    Still, one should consider OMA DRM separate delivery, it is the only case where the phone would know/care about an encrypted SIS file.
    -- Lucian

    If you are not yet a DVLUP member it is time to correct that mistake :) Click here to join: http://www.dvlup.com/lucian/Invite

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