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Self decrypting encryption programs.
Sentrinox 
27/7/08 3:26:40 PM
Learner
Hi,

I'm looking for a good program for making self-decrypting encrypted .exe files. EG. I want to encrypt some project files into a password protected .exe file which decrypts itself when the correct password is entered. The reason why i'm asking is because some people say some programs for doing this are bad as they keep the password stored in the .exe or something like that. I need self decrpyting for when i transport the files around from pc to pc.

Thanks!

Regards, Sentrinox

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bowiee 
27/7/08 5:50:44 PM
Hero
Guru


I just use winzip for the odd times I want to encrypt a file.

http://www.winzip.com/wzdaes.htm

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"You do not really understand something unless you can explain it to your grandmother" - Albert Einstein.
"Note to self....Don't feed the trolls"




TheSecret 
28/7/08 12:07:31 PM
Master
WinZip's AES implementation was horribly insecure, and full of holes. Not sure if that is still the case. Take a look at AxCrypt:

http://www.axantum.com/AxCrypt/

It should do exactly what you're asking.

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Part of the inhumanity of the computer is that, once it is competently programmed and working smoothly, it is completely honest.

eckythump 
28/7/08 9:50:21 PM
Overlord

AxCrypt looks good.

And I'm fairly sure zip and rar compression formats both use a fairly robust encryption cipher these days, so you should be pretty safe to just make a encrypted self-extracting archive.

Whatever's easiest for you. Should you find yourself needing to access your files on a non-Windows machine, you might find using zip/rar to encrypt as a better option, given unzip and unrar are much more likely to already be installed, whereas axcrypt isn't. You can point both unzip and unrar at a .exe, should that .exe be a self-extracting rar/zip archive.

Alternately, you could look into having an encrypted filesystem on a USB stick. I'm not sure how easy it is to do this under windows, and whether it's supported out-of-the-box on the machiens you'll be plugging into, but it's another potential option for you to research all the same.

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"Grandfather had an accident, he got burnt." "Oh no, how bad?" "Well, they don't fuck around at the crematorium."

TheSecret 
29/7/08 7:20:09 AM
Master
I never said anything about ciphers, but about their implementation. Winzips AES implementation in particular was scorned when it was introduced, and I don't know if they have improved it.

It is a good point about AxCrypt being windows only however. Probably the second best alternative you should go for is truecrypt, which runs on all the Linux, Mac and Windows.

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Part of the inhumanity of the computer is that, once it is competently programmed and working smoothly, it is completely honest.

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