BoxCryptor Classic problem: Encrypted Directory Names // Downgrading

akoerber

Hello,
I have used Boxcryptor Classic for some years now. Since a few weeks (supposedly after updating to 1.7), I repeatedly experience a loss of accessability to some directories, using encryptes file- and directory names.

Apparently the directories are still there, since re-creating them is not possible and leads to an error message stating that they exist.

I found out that in these cases, directory names containing Upper and Lower case letters have been silently changed to lower case only, leading to their being inaccessible.

How can I resolve this?

Is there a way to force BoxCryptor to use, say, lower case only?

Can I downgrade to, say BC Classic 1.5?
Where is it available?
Will it access the files after BC Classic 1.7 has been used?

Yours
A.

Robert

Hello,

I assume you're using Boxcryptor Classic with Dropbox. It is a known issue that in some cases, Dropbox converts filenames to lower-case only. This is not related to any behavior of Boxcryptor Classic (of any version) and reverting to an older version does not help. Sadly, Dropbox is the trouble-maker here as it does not maintain the upper and lower case filenames.

When filenames are converted to lower-case only, the encrypted data in the filename gets modified ('A' stands for a different information than 'a') and the filename cannot be decrypted by Boxcryptor classic anymore.

Please contact Dropbox about this problem and ask them to restore the old and correct upper and lower case filenames. It is not possible to use lower case characters only as this would increase the encrypted filenames significantly.

Best regards,
Robert

PS: You can up- and downgrade Boxcryptor Classic versions as you like. All v1.x versions are compatible to each other. You can find old versions here: https://boxcryptor.desk.com/customer/portal/articles/627937-boxcryptor-classic-for-windows-changelog