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Old 05-23-2026, 02:32 AM   #4
Redwolf0
Junior Member
Redwolf0 began at the beginning.
 
Posts: 6
Karma: 10
Join Date: Nov 2023
Device: Nook Glow Light 4
Thank you gentlemen for you quick response. I updated the DeDRM plugin and it still is not working. The following is from Calibre's debug mode. Would youhave any other advice to offer?
Spoiler:

ApplicationPaletteChange event ignored
Using calibre Qt style: True
ApplicationPaletteChange event received
calibre Debug log
calibre 9.8 embedded-python: True
Windows-11-10.0.26200-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '11', '10.0.26200')
Python 3.14.2
Windows: ('11', '10.0.26200', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre-debug.exe
Successfully initialized third party plugins: DeACSM (0, 0, 16) && Gather KFX-ZIP (from KFX Input) (2, 33, 0) && DeDRM (10, 0, 18) && Package KFX (from KFX Input) (2, 33, 0) && KFX metadata reader (from KFX Input) (2, 33, 0) && From KFX (2, 33, 0) && KFX Input (2, 33, 0) && Set KFX metadata (from KFX Output) (2, 19, 0) && KFX Output (2, 19, 0)
calibre 9.8 embedded-python: True
Windows-11-10.0.26200-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '11', '10.0.26200')
Python 3.14.2
Windows: ('11', '10.0.26200', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre-debug.exe
Successfully initialized third party plugins: DeACSM (0, 0, 16) && Gather KFX-ZIP (from KFX Input) (2, 33, 0) && DeDRM (10, 0, 18) && Package KFX (from KFX Input) (2, 33, 0) && KFX metadata reader (from KFX Input) (2, 33, 0) && From KFX (2, 33, 0) && KFX Input (2, 33, 0) && Set KFX metadata (from KFX Output) (2, 19, 0) && KFX Output (2, 19, 0)
QPA platform: windows
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 92.53889943074003 x 92.67567567567568
[0.00] Starting up...
[0.00] Showing splash screen...
[1.19] splash screen shown
[1.19] Initializing db...
[1.37] db initialized
[1.37] Constructing main UI...
[2.10] GUI main window shown
[2.18] main UI initialized...
[2.18] Hiding splash screen
[2.18] splash screen hidden
[2.18] Started up in 2.18 seconds with 234 books
DeDRM v10.0.18: Trying to decrypt The Proving Ground.epub
DeDRM v10.0.18: Verifying zip archive integrity
DeDRM v10.0.18: The Proving Ground.epub is a secure Adobe Adept ePub for UUID 2fd6f3f1-ffbf-455c-8d03-505568806a57
DeDRM v10.0.18: Trying Encryption key default_key
nt17r976.epub is a secure Adobe Adept ePub.
Could not decrypt nt17r976.epub because of an exception:
Traceback (most recent call last):
File "C:\Users\ernes\AppData\Roaming\calibre\plugins\De DRM.zip\ineptepub.py", line 296, in decryptBook
File "C:\Users\ernes\AppData\Roaming\calibre\plugins\De DRM.zip\ineptepub.py", line 112, in __init__
File "Crypto\Cipher\AES.py", line 229, in new
File "Crypto\Cipher\__init__.py", line 52, in _create_cipher
File "Crypto\Cipher\_mode_cbc.py", line 274, in _create_cbc_cipher
File "Crypto\Cipher\AES.py", line 91, in _create_base_cipher
ValueError: Incorrect AES key length (0 bytes)

DeDRM v10.0.18: Failed to decrypt with key default_key after 0.1 seconds
DeDRM v10.0.18: Looking for new default Adobe Digital Editions Keys after 0.1 seconds
DeDRM v10.0.18: Exception when getting default Adobe Key after 0.1 seconds
Traceback (most recent call last):
File "calibre_plugins.dedrm.__init__", line 584, in ePubDecrypt
File "C:\Users\ernes\AppData\Roaming\calibre\plugins\De DRM.zip\adobekey.py", line 314, in adeptkeys
File "C:\Users\ernes\AppData\Roaming\calibre\plugins\De DRM.zip\adobekey.py", line 294, in CryptUnprotectData
adobekey.ADEPTError: Failed to decrypt user key key (sic)
DeDRM v10.0.18: Ultimately failed to decrypt after 0.1 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools...master/FAQs.md
Running file type plugin DeDRM failed with traceback:
Traceback (most recent call last):
File "calibre\customize\ui.py", line 236, in _run_filetype_plugins
File "calibre_plugins.dedrm.__init__", line 1063, in run
File "calibre_plugins.dedrm.__init__", line 658, in ePubDecrypt
calibre_plugins.dedrm.DeDRMError: DeDRM v10.0.18: Ultimately failed to decrypt after 0.1 seconds. Read the FAQs at noDRM's repository: https://github.com/noDRM/DeDRM_tools...master/FAQs.md
stdout+stderr from file dialog helper: [b'', b'']
piped data from file dialog helper: [b'\xe3\x89W\x87\x0f\xd4r.\x81\x88\x9a\xf84\xa2r\xd 0\x95\xd2&V\xdc\x127\x07\xce\xea`Z&\x80\xc2\xb3', b'C:\\Users\\ernes\\Documents\\My Digital Editions\\The Proving Ground.epub']
Added The Proving Ground to db in: 5.2
Failed to count pages in book: 272 EPUB because it is DRM locked
Added 1 books in 5.7 seconds
[119.56] Shutdown starting...
[119.59] Shutdown message shown...
[119.59] Grid view shutdown
[119.59] Bookshelf view shutdown
[119.60] Actions shutdown
[119.80] Various services shutdown
[119.80] Metadata backup shutdown
[119.90] Current database closed
[119.91] Windows hidden
[119.93] Waiting for overseers, mdns, and live to shutdown
[119.93] Waiting for device manager to shutdown
[119.93] Shutdown complete in 0.37, quitting...

Last edited by theducks; 05-23-2026 at 10:57 AM. Reason: spoilered logs
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