This program allows a standard Java-SE platform to decode Secrets for Android files.
Run ant on the project's root directory.
You will need an internet connection, because the build will
download a cryptography provider library from
http://www.bouncycastle.org/java.html.
The executable jar will be placed in the lib directory.
To decode an existing file run
java -jar lib/secrets.jar inputfile outputfile
Sadly the default installation of the Jav 6 Java runtime environment doesn't offer
cryptographic services, nor does it play particularly well with existing
providers.
If you install secrets.jar in another location you will need to
copy alongside the appropriate
Legion of the Bouncy Castle
crypto provider library bcprov-jdk....jar.
Note that the JDK 7 seems to include the required cryptographic functionality out of the box.
Furthermore, to avoid an exceception
java.security.InvalidKeyException: Illegal key size you must modify
your Java runtime installation to support strong cryptography.
For that download the strong cryptography policy files from
the location where you downloaded your Java runtime environment
and install them according to the supplied instructions.