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tools v6.2.0

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Updated for B&N new scheme, added obok plugin, and many minor fixes,
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Apprentice Harper
2015-03-09 07:38:31 +00:00
committed by Apprentice Alf
parent c4fc10395b
commit 9d9c879413
54 changed files with 6345 additions and 604 deletions
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DeDRM_calibre_plugin/DeDRM_plugin/DeDRM_Barnes and Noble Key_Help.htm
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<h3>Changes at Barnes & Noble</h3>
<p>In mid-2014, Barnes & Noble changed the way they generated encryption keys. Instead of deriving the key from the user's name and credit card number, they started generating a random key themselves, sending that key through to devices when they connected to the B&N servers. This means that some users will find that no combination of their name and CC# will work in decrypting their ebooks.</p>
<p>In mid-2014, Barnes & Noble changed the way they generated encryption keys. Instead of deriving the key from the user's name and credit card number, they started generating a random key themselves, sending that key through to devices when they connected to the Barnes & Noble servers. This means that some users will find that no combination of their name and CC# will work in decrypting their ebooks.</p>
<p>There is a work-around. Barnes & Noble’s desktop app NOOK Study generates a log file that contains the encryption key. You can download NOOK Study from <a href="https://yuzu.com/nsdownload">https://yuzu.com/nsdownload</a>.</p>
<p>Once downloaded, install the application, register with your Barnes & Noble or nook account, and download at least one DRMed ebook through NOOK Study. It will be saved somewhere in a folder called "My Barnes & Noble eBooks" in your Documents folder.</p>
<p>Now import that book into calibre. The log file and the key in the log should be automatically found by the plugin and used to decrypt the book.</p>
<p>If the automatic process doesn't work for you, you can still find extract it manually and save it as a .b64 file for import into the plugin's preferences as follows:</p>
<ol><li>In NOOK Study, select Settings/About (Windows) or NOOK Study/About NOOK Study (Mac) and in the dialog that appears click the link at the bottom to copy the log into the clipboard.</li>
<li>Paste the copied log into a text editor</li>
<li>Search for the text CCHashResponseV1</li>
<li>On the line below which starts with ccHash, copy the text between the " marks after ccHash, but don't include the " marks.</li>
<li>Save that text in a new <b>plain text</b> file, with file name extension .b64 (for example, key.b64)</li>
<li>Import that file into the preferences through this dialog, using the "Import Existing Key Files" button.</li>
</ol>
<p>There is a work-around. B&N's desktop apps for Mac and Windows (nook for Mac/PC, nookStudy) generate a log file that contains the encryption key. For Mac the log file can be found somewhere in [user folder]/Library/Application Support/Barnes & Noble/ and for Windows the log file can be found somewhere in C:\Users\admin\AppData\Roaming\Barnes & Noble\</p>
<p>In both cases, the log file will be called BNClientLog.txt</p>
<p>You will need to open the application, sign in to your account, and download your books, checking that you can read them in the application, and then quit the application.</p>
<p>Then you must open the log file in a text editor and search for CCHashResponseV1. Immediately after that text should be some more text, similar to ccHash: "rLYiGD+vcPoXvsj/87kDAb1AkBy="<p>
<p>Copy the text after ccHash, include the " marks. Save it in a new text file, with file name extension .b64</p>
<p>Follow the instructions below "Importing Existing Keyfiles:" to import that newly saved file into the preferences.</p>
<h3>Old instructions: Creating New Keys:</h3>