### Two Open Source Apps for data protection ###

[rysiek]

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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