### Two Open Source Apps for data protection ###
rysiek
rysiek at hackerspace.pl
Mon May 12 02:46:34 PDT 2014
Dnia niedziela, 4 maja 2014 21:27:06 Jose Damico pisze:
> Hi All,
>
> I've developed 2 small/simple/open-source Android apps that can be
> useful for data protection in mobile devices:
>
> =============
>
> Yapea: Yet Another Picture Encryption Application
>
> https://play.google.com/store/apps/details?id=org.jdamico.yapea
> https://github.com/damico/yapea
>
> =============
>
> SecNote: Encrypted Notepad for Android
>
> https://play.google.com/store/apps/details?id=org.jdamico.secnote
> https://github.com/damico/SecNote
>
> =============
>
> Both applications, has these features:
>
> * Encryption Algorithms:
>
> Symetric encryption:
>
> AES (CBC/PKCS5Padding)
> Blowfish (CFB/NoPadding)
> The Initialization Vectors are generated based on unique data
> from the smartphone.
Which data?
> * Type of encryption key:
>
> Length: 256 bits
>
> Generated through key derivation (from user-defined password)
> with PBKF2 algorithm. The salt are generated based on unique
> data from the smartphone. The key is stored inside a
> configuration file, at smartphone file system. This file is used
> for password verification at first time of application use.
> After that the key is encripted and stored inside smartphone
> memory (cache). But at anytime the user can choose to delete the
> encrypted key from memory (Clear cache).
>
> * Application reset: At anytime the user can choose to dump ALL
> application data, including encrypted images and configuration.
>
> * Panic password: A password that can be used to delete all encrypted
> images. In a case where user is forced to give its key. (If you're
> traveling overseas, across borders or anywhere you're afraid your
> smartphone might be tampered with or examined).
That's neat, good thinking!
> * Languages: English and Portuguese
--
Pozdr
rysiek
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