Quote:
Originally Posted by EowynCarter
That would requires the adobe server to keep the files of all the books ever downloaded.  |
No, just a note of what encryption has been used.
The Content Server already has an (unencypted) copy of all the books it handles, and a note of the Adobe ID used for all books bought from the server - that's why you can't use the same .acsm file on two different accounts. The server knows that the .acsm has already been used, and what Adobe ID was used to redeem it. Adding in a flag for ADE 2 or ADE 3 encryption is trivial, and probably essential just to support ADE 3 encryption at all.