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knc1 · 06-19-2015, 10:30 PM

I think that the subject of "getting around" or otherwise defeating DRM is against the site rules.

But here is a slide show of the various types of block encryption:
http://www.utdallas.edu/~muratk/cour...iles/modes.pdf

To answer your question, you have to know which of the above types is used by the DRM you are interested in making random access too.

For that information, you'll have to go to some other source of information than MobileRead.
Sorry, we don't disturb other people's I.P. here.

- - - -

You had better check your prior source(s) of information, that is most likely **bits** not **bytes** (block sizes are usually referred to by their **bit length** in cryptology but I don't have a clue what is the common practice in DRM methods).

06-19-2015, 10:30 PM	#2
knc1 Going Viral Posts: 17,212 Karma: 18210809 Join Date: Feb 2012 Location: Central Texas Device: No K1, PW2, KV, KOA	I think that the subject of "getting around" or otherwise defeating DRM is against the site rules. But here is a slide show of the various types of block encryption: http://www.utdallas.edu/~muratk/cour...iles/modes.pdf To answer your question, you have to know which of the above types is used by the DRM you are interested in making random access too. For that information, you'll have to go to some other source of information than MobileRead. Sorry, we don't disturb other people's I.P. here. - - - - You had better check your prior source(s) of information, that is most likely bits not bytes (block sizes are usually referred to by their bit length in cryptology but I don't have a clue what is the common practice in DRM methods). Last edited by knc1; 06-19-2015 at 10:40 PM.