What CRC32 checksum?

Trevor Johns, in a discussion of LVL, offered up CRC32 as a means of
helping detect tampering, but that was simply an example. Otherwise, I
am coming up with zero references to the use of CRC32 with respect to
APKs.

Do you have a pointer to somewhere in the open source code where they
are using a CRC32 checksum in this fashion?

Thanks!

On Fri, Oct 8, 2010 at 7:12 AM, DanH <[email protected]> wrote:
> What I mean is that if the bad actor can manipulate the apk bytes
> while still maintaining the same checksum, then the whole scheme is
> insecure -- there's no point in having it signed.  A CRC32 checksum is
> easily spoofed -- the apk bytes need to be checksummed with a
> cryptographic checksum of some sort.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy

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