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#526 |
Laura
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Device: Kobo Sage, Kobo Elipsa, Nook Glowlight 4 Plus, Kindle Oasis 2
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Mac store app vs. the app downloaded directly from Amazon? I seem to recall people having problems with that in the past.
At any rate, if you look at the first log in that issue, you can see how the key isn't found. It appears as if they don't have Kindle for Mac installed at all, but they did. I've seen the same thing on Windows when people have version 1.25 of Kindle for PC. (Yeah, can't see stand-alone DeDRM vs. plugin being the difference either. Same exact scripts, just running on different Python.) |
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#527 |
Grand Sorcerer
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Join Date: Nov 2011
Location: Charlottesville, VA
Device: Kindles
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A change was made in Kindle for PC 1.25. A file named .kinf2011 in "User\name\AppData\Local\Amazon\Kindle\storage " has been replaced with one named .kinf2018 having different content. I presume that is used by the DeDRM tools find the user's key.
I don't have a Mac so I can't say whether or not something similar happened in that platform. Perhaps someone with a Mac can check what files are present there for the new Kindle for Mac stand-alone and store versions. |
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#528 |
just an egg
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Device: Kindle, iOS
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I ran more tests with K4Mac and see what's going on now. This is more complicated than I thought and involves more detailed discussion of Alf's tools than I think is allowed here. Suffice to say it is possible to get Alf-friendly KF8 from 1.25.2, including with a clean install, but depending on your Alf set-up, you may need to take extra steps that I don't think I'm allowed to discuss here.
Last edited by odamizu; 03-28-2019 at 03:01 PM. Reason: clarity |
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#529 |
Grand Sorcerer
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Location: Charlottesville, VA
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#530 |
The Grand Mouse 高貴的老鼠
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Join Date: Jul 2007
Location: Norfolk, England
Device: Kindle Oasis
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Odamizu's method relies on first obtaining the decryption key from an earlier installation of 1.23 or earlier.
No-one's reverse engineered the new key file format yet. Thanks for being careful about the line between discussion of DRM and detailed help with DRM removal. |
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#531 |
Laura
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Thanks for taking another look at it, odamizu. Hopefully things are figured out for both Mac and PC soon.
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#532 | |
just an egg
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Quote:
I have updated the instructions to reflect the new findings (without going into detail). One of the questions swirling around in my head: is the new key a deliberate effort by Amazon to thwart Alf's tools, or is this just a side effect of other changes they're implementing? Thoughts anyone? |
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#533 |
The Grand Mouse 高貴的老鼠
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If I had to guess, I'd say it was a side effect of moving to a 64-bit Mac application.
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#534 | |
Grand Sorcerer
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Location: Charlottesville, VA
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Quote:
The change from .kinf2011 to .kinf2018 and the new DRM for KFX format were both likely done specifically to prevent DRM removal, in my opinion. ---- Added: it does seem odd to me that Amazon still has not done anything to prevent exfiltration of books obtained using the Download & Transfer via USB function of their website for owners of e-ink Kindle devices. It is strange that they continue to leave that open while closing other loopholes. Last edited by jhowell; 03-29-2019 at 06:06 PM. |
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#535 | |
hopeless n00b
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#536 | |
just an egg
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#537 | |
Wizard
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Location: Australia
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Quote:
The existence of older devices means that if Amazon does start to take DRM more seriously, there will likely be a period where they continue to provide mobi and azw3 downloads with the old drm for older devices. Certainly kfx, which is optimised for each device, is not designed to make reading on non-Amazon devices easier. |
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#538 | |
hopeless n00b
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Quote:
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#539 | |
Wizard
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Quote:
To close this loophole is problematic. It is possible that Amazon could update the firmware in older devices to support kfx and new drm, though some of the earlier devices particularly may not have the necessary hardware capabilities. I suspect if they were going to do this they would already have done so. Otherwise Amazon would have to not only end support for these devices but actually exclude them from purchasing ebooks from the Amazon store, or perhaps substantially limit available titles. This is not consistent with Amazon's policy so far. Amazon may choose to wait a long time for the numbers of these older devices in use to decline to insignificant levels. |
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#540 |
Grand Sorcerer
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The downloading option is there probably not only for old devices, but also for people who don't have wifi. If Amazon decides to take the option away, what about those people?
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Tags |
k4pc, kindle for pc |
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Thread | Thread Starter | Forum | Replies | Last Post |
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updated calibre with a little help for kfx format | cvkemp | Amazon Kindle | 0 | 10-06-2015 10:08 AM |
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