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> Crypting And Decrypting, Sensible Data --> Zaurus an Open Source?
maemorandum
post Nov 23 2008, 10:03 AM
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Is there any application in cacko to password-encrypt and decrypt files?
Or - alternative -, to block others from starting special Programs?
The only applications i found are for text-encryption.

I would like to see a solution, which protects special documents without the need to protect the whole machine.

Anyone knows more?
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Capn_Fish
post Nov 23 2008, 01:00 PM
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Maybe the best method would be to have an encrypted disk image with the files inside of it.

TrueCrypt is probably a good solution for this, but I don't think it's been built for Cacko.
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aki
post Nov 25 2008, 06:29 AM
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QUOTE(maemorandum @ Nov 23 2008, 06:03 PM) *
Is there any application in cacko to password-encrypt and decrypt files?
Or - alternative -, to block others from starting special Programs?
The only applications i found are for text-encryption.

I would like to see a solution, which protects special documents without the need to protect the whole machine.

Anyone knows more?


Give ccrypt a try. There's an ARM binary on the site, but it's an older version. I compiled the latest version myself and it works well on the SL-6000 with Sharp ROM v1.12 (binary is attached below, just move it to a directory on your path as ccrypt (no .txt)). Ccrypt works by encrypting files and directories, so it's not designed to transparently encrypted a disk volume. A big plus for ccrypt is that it is available for lots of OSs/HW -- you can sync your files securely with whatever OS you like and decrypt them on the remote system.


Attached File(s)
Attached File  ccrypt.txt ( 62.6K ) Number of downloads: 9
 
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maemorandum
post Nov 25 2008, 07:56 AM
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QUOTE(aki @ Nov 25 2008, 03:29 PM) *
QUOTE(maemorandum @ Nov 23 2008, 06:03 PM) *
Is there any application in cacko to password-encrypt and decrypt files?
Or - alternative -, to block others from starting special Programs?
The only applications i found are for text-encryption.

I would like to see a solution, which protects special documents without the need to protect the whole machine.

Anyone knows more?


Give ccrypt a try. There's an ARM binary on the site, but it's an older version. I compiled the latest version myself and it works well on the SL-6000 with Sharp ROM v1.12 (binary is attached below, just move it to a directory on your path as ccrypt (no .txt)). Ccrypt works by encrypting files and directories, so it's not designed to transparently encrypted a disk volume. A big plus for ccrypt is that it is available for lots of OSs/HW -- you can sync your files securely with whatever OS you like and decrypt them on the remote system.


Works, thank you, aki!
Unfortunately i use the files very often, so i always would have to use the qkonsole, which could be quite complicated and critical for mistyping.
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aki
post Nov 26 2008, 10:31 AM
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QUOTE(maemorandum @ Nov 25 2008, 03:56 PM) *
Unfortunately i use the files very often, so i always would have to use the qkonsole, which could be quite complicated and critical for mistyping.

Note that you don't necessarily need the console; you can use a wrapper script that uses opie-sh to prompt you for the password from Qt and then decrypts the file, starts your app, and prompts you to re-encrypt the file once the app closes.
You would still need to enter the passwords every time you access your file, but there's no way around that if you want to be safe.

I can tell you from experience that a little extra typing is worth knowing that your sensitive data is safe. I had my SL-6000 with *lots* of personal info stolen a year ago and still worry if it will cause me problems.
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