Kobo Desktop Reader update breaks Calibre Obok DeDRM.

[Tenome]

Looks like they changed the location of their key.

Kobo Desktop 3.17.0 (white interface), Calibre 2.34, Obok 3.1.3, Windows 7 64-bit, currently inoperable.

"... could not be added because it could not be decrypted."
"ERROR: Obok DeDRM v3.1.3: No userkeys found to decrypt books with. No point in proceeding"

[ElleKayEm]

Just wanted to add that it is Kobo Desktop 3.17.0 for Windows that has the problem. When I opened the version I already had installed, it only updated to 3.15.0 which still worked. I had to download a new setup file from the Kobo website to get the latest version.

[apprenticeharper]

3.15 can be downloaded through the Wayback Machine, which is the only solution until someone works out how the keys are stored in 3.17

https://web.archive.org/web/20150505234922/https://kbdownload1-a.akamaihd.net/desktop/kobodesktop/kobosetup.exe

[13xforever]

Just to let you know, they added a new salt for master key generation.
In addition to NoCanLook, there's now XzUhGYdFp.
There's some kind of condition when either of those should be used (probably, only when upgrading the DB), but I just try everything.
Relevant changes in my project are here.

PS: it might be silly, but I think Kobo might start to use new salt keys for every release.

[apprenticeharper]

Many thanks.

[apprenticeharper]

This will be fixed in the next release