Adobe Digital Editions 3.0 released

[eschwartz]

Originally Posted by pdurrant

The device ID is combined with some metadata inside the book to generate the book key that is used to get the actual decryption key to decrypt the book.

Oddly, every book on a recent Kindle has a difference book key, unlike books on Kindle for iOS which all use the same book key, or did last time I looked.

What is the purpose of that? How is it more secure than a per-device key, which practically speaking it is?

[joblack]

Originally Posted by Rev. Bob

And yet, it's a vital piece of the marketing puzzle. Be grateful for those who buy early, before the price drops; in effect, they're subsidizing your "wait for the drop" strategy. If everybody waited and nobody bought the more expensive early release, the later release would cost more.

If everybody would wait we would already have The Great Depression 2.0.

Despite that fact you're right. It's the same with computer games. Wait a year and you'll get it cheaper. I don't have the time to read everything at once anyway.

[6charlong]

Originally Posted by doubleshuffle

No. This update of ADE is mainly about the DRM, with just a few minor improvements to epub rendering. They want to do a major upgrade to supporting epub 3 in June. It's mentioned in the Datalogics webinar, around minute 4 or 5.

I view the DRM "upgrade" as inconsequential because in 6-12 months it will be broken, while the changes Adobe decides to make in their rendering of ePub3, how they implement the changes and what parts of ePub3 they do implement will still affect our reading in 6 years.

No conspiracy theory, but they seem to have decided to make the DRM release first to alert users to what's coming, force them to do something to prepare for it, and possibly avoid being blamed by people who don't prepare.

To my way of thinking the books are the only thing that really matters.

[meeera]

Originally Posted by 6charlong

I view the DRM "upgrade" as inconsequential because in 6-12 months it will be broken,

Do you think it will take that long?

Happily, I have more than 12 months of reading stashed (plus, there's always the DRM-free shops and Amazon).

[oj829]

Originally Posted by doubleshuffle

No. This update of ADE is mainly about the DRM, with just a few minor improvements to epub rendering. They want to do a major upgrade to supporting epub 3 in June. It's mentioned in the Datalogics webinar, around minute 4 or 5.

6 of one, half-dozen of the other. IMHO, epub3 support is going to be the shiny crowbar which Adobe will use on the public-facing application side to drive otherwise savvy e-book customers (perhaps kicking and screaming) into SW/HW updates which work only with the hardened DRM infrastructure.

[pdurrant]

Originally Posted by eschwartz

What is the purpose of that? How is it more secure than a per-device key, which practically speaking it is?

Because the per-book key uses a larger range of characters in the key, it's much, much harder to brute-force the key. That's about the only advantage. Apart from the change itself.

But there's no purpose to DRM, so no purpose to changes, either.

[cybmole]

Originally Posted by pdurrant

Because the per-book key uses a larger range of characters in the key, it's much, much harder to brute-force the key. That's about the only advantage. Apart from the change itself....

but the existing work-arounds ( which I know we are not allowed to discuss in depth) don't brute-force the key anyway, they use a far smarter solution.

[pdurrant]

Originally Posted by cybmole

but the existing work-arounds ( which I know we are not allowed to discuss in depth) don't brute-force the key anyway, they use a far smarter solution.

Oh yes. But they needed extra work by to restore the decryption function after the changes.

Brute-force solutions are unlikely to be useful with any recent DRM scheme, which will be using effective keys of a much greater length.

[ShellShock]

Originally Posted by 6charlong

I view the DRM "upgrade" as inconsequential because in 6-12 months it will be broken.

There is no guarantee of that. What if it took a year? Two years? Three? Forever?

[alanHd]

Originally Posted by ShellShock

There is no guarantee of that. What if it took a year? Two years? Three? Forever?

I cant see it being long at all before its broken, look at Blueray, if I remember right some people were saying it would take people 10 yrs to break that.

Some people will want to break it just because its a challenge.

[ShellShock]

Originally Posted by alanHd

I cant see it being long at all before its broken, look at Blueray, if I remember right some people were saying it would take people 10 yrs to break that.

Some people will want to break it just because its a challenge.

Some one has got to want to break it, to have the skills and time to break it, and to want to publish the hack without worrying about the legal consequences.

[donschjr]

Anyone having problems with ADE? I'm trying to open a library book but keep getting authorization error. I tried to renter may adobe id and tried reinstall of 2.0 but no luck.

[Difflugia]

Originally Posted by donschjr

Anyone having problems with ADE? I'm trying to open a library book but keep getting authorization error. I tried to renter may adobe id and tried reinstall of 2.0 but no luck.

I just downloaded a book from Overdrive with ADE 1.7 a few minutes ago, so I don't think anything's happened to the server yet.

[Lynx-lynx]

I just downloaded a library ebook without problems using Sony Reader for PC.

[donschjr]

I installed Sony Reader since I still have an account and was able to open the book with that, a very strange situation. I was going to read the book on my HD+ but I just returned it and borrowed the Kindle version which loaded wireless to my K3 to read.