Quote:
Originally Posted by Akirainblack
Fair enough, I hadn't realised they used a key pair, which is why I asked. 
I have to deal with encryption on a daily basis in my job due to sensitive data so am fully aware of how they work.
Thank you for explaining how you guys do it.
Plus looking through the source, my other idea would take an eternity (brute force the key) due to the length of the key. |
Ah, then I can use buzz words -
If you can brute force that RSA key, then Ron Rivest, Adi Shamir, and Leonard Adleman would like to know about it.
So would any number of National Governments.
PS: Amazon still offers free accounts on their Super Computer (the 9th most powerful Super Computer in the world, IIRC - see top 500 list to check) -
which might interest anyone serious about trying.
http://en.wikipedia.org/wiki/RSA_problem
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There are actually two (2) updater mechanisms in the Kindle firmware.
One put there in the very early days when Amazon thought that they would support (and encourage) third party add-ins as active documents.
That is the one we use for our packages here.
The other one, for the OTA updates, remains the sole domain of Amazon (we haven't even tried to disturb that one).
That all means that our packages can **only** be installed by owner action.
No chance that they can be forced onto a Kindle via the OTA updater (which just earns you an error code 3, IIRC).