OK,
The apk file is not unpacked after installation, it stored as is
inside android either in internal memory or on SD-card in android-
secure directory.
Here is the code that I wrote to access the CERT.RSA file from inside
the application.
It seems that this is the only way, but maybe I'm wrong.
private void checkAPK()
{
String path = this.getApplication().getPackageCodePath();
try
{
ZipFile zfile = new ZipFile(path);
ZipEntry zentry = zfile.getEntry("META-INF/CERT.RSA");
long siz = zentry.getSize();
byte[] buf=new byte[(int) siz];
InputStream istream = zfile.getInputStream(zentry);
int ret = istream.read(buf);
istream.close();
//process buf contents here
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
On Oct 5, 11:48 am, "petr.maza...@mautilus.com"
<petr.maza...@mautilus.com> wrote:
> How the .apk installation process works on device? Is the .apk file
> just copied to some place and kind of installer application extracts
> the application information, register somehow the application to
> environment, extract also the icon and put it on the application
> launch screen? Or the .apk content is extracted and files are copied
> to various folders and the .apk file itself is deleted?
>
> I am asking to understand if there is any possibility on device to
> browse the .apk file structure and its content and access in read-only
> mode directly the assets, res folders, AndroidManifest.xml, the dex
> file and also used libraries (.jar or .so)?
>
> The reason I am asking is that I am looking for possibility to read
> into memory .dex, .jar or .so files like arbitrary binary files (e.g.
> by using the `File` class) for the purpose of computing a message
> digest from its content (i.e. using md5 or other hash method)...
>
> BR
> STeN
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