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Socoder -> Blitz -> Help with Image encryption |
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| Wed, 17 Mar 2010, 06:56 | |
omadan
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hello all. I have been very busy finishing my game. it is finished and I am very pleased with the results. However, I have a bit of a problem. How can I encrypt my images so people cannot see the actuall .png file except just when playing the game. I tried some lossless encrytpion which I coded myself, works, but too slow. Any other options. Im just interested on protecting image files if that helps, not really bothered about sound  Im using Blitz Basic Regards Joe |
| Fri, 19 Mar 2010, 10:46 | |
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omadan
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Thanks for your reply Tiki. .png images when used with this get sickly huge  I think ill just go ahead and program something myself, or ill post game without encrypting images. Thanks and as always I welcome any other info/advice. Regards -Joe |
| Fri, 19 Mar 2010, 10:52 | |
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LostUser |
There are quite a few Blitz as "packages" programmes. I have not tried them all, but a few of them are actually very good and do not include any viewable assets.
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| Sat, 20 Mar 2010, 02:39 | |
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omadan
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Could you at least mention one. I googled for that and believe you me, I got blitz searches which had nothing to do with the language Thanks again -Joe |
| Sat, 20 Mar 2010, 05:51 | |
Jayenkai
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I'm sure there's something out there, but I can't find anything right now!! Have you considered attaching an exe to do the job for you? If you can find an old command-line dos-based freeware compressor, you can zip up all your images, get the game to run the exe to unzip them when it's loading, and delete them when it's done.. Add a password to the zip, job done.. -=-=- ''Load, Next List!'' 
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| Sun, 21 Mar 2010, 09:42 | |
Pio
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It might be enough to mess up the images' headers. Like, add some value (and wrap if the value gets over 255) to each of the first 50-100 bytes. Then, somehow, unmess when loading...
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| Sun, 21 Mar 2010, 09:46 | |
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Jayenkai
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That's actually quite a good idea.. But you'd still have to pass the whole file through Blitz to get it to work, and I can't imagine that would be much quicker. But worth a try.
-=-=- ''Load, Next List!''
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| Sun, 21 Mar 2010, 11:41 | |
JL235
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Pio Security through obscurity, nothing more.
 It might be enough to mess up the images' headers. Like, add some value (and wrap if the value gets over 255) to each of the first 50-100 bytes. Then, somehow, unmess when loading... |
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