cryptographic protection on a hard drive hard to defeat or duplicate

[acem77]

here is a link to a post i put up earlier.

http://www.tek-tips.com/viewthread.cfm?SQID=797101&SPID=751&page=1

its
about trying replace my hard drive in a mp3 player.
i was told it uses cryptographic protection.

an email i got from Terry Kennedy from the forum
"The protection is cryptographic. You won't crack it in a timeframe that matters
- tell me if the 60GB DMS is still relevant in 10+ years."

Trust me, it won't work. The PhatNoise developers sign all their code
with a RSA (encryption) signing key. Similarly, they read the drive model /
serial / etc. and sign that with their signing key. As with all public-key
cryptographic systems, a signing key is different from a public key - with
the public key you can verify that something was signed with a specific
private key, but you have no knowledge of the private key that was used.

PMM does the same thing to sign playlists, but they are signed with a
different key, since the private key for that is in PMM.

It would take a long time (many computers working for at least many
months) to discover the private signing key.

I "cheated" and used the internal Fujitsu tools to create a second 60GB
drive with the same serial number as a real 60GB DMS.


link to the mp3 player forum.

http://www.phatnoise.com/forum/showthread.php?s=&threadid=1795&perpage=15&pagenumber=2

 

[todd1010]

Hey acem77 its todd1010, have you came up with anything else on this matter. I'm actively pursuing it also. I have a Fujitsu 60gb that i want to try and do something on, but i don't know where to begin. What do you think of this, as i've been thinking of something Terry K. had said he had done and that was "cheated". I think he did something like:

Buy a original Phatnoise 60gb DMS
and cloned it with the original. Because i think if you have the original and cloned it you might be alright.

Keep in touch about this, i'm sure it can be done.