HBS3 Client-Side encryption - qnap-decrypt

[olivers]

Hi All,
I successfully de-crypted a HBS3 file out-of-band with https://github.com/alexkazik/qnap-decrypt based on this guide: https://www.youtube.com/watch?v=f4_x_8tj18o
I read somee where that encryption is based on openssl. As I'm not a coder, why do I need a dedicated utility for decrypting?

[friggeldie]

Hi,

I finally decrypted my file with openssl:

openssl enc -aes-256-cbc -md md5 -d -pass pass:PASSWORD -in encrypted.pdf -out decrypted.pdf

I hope this helps you.

[olivers]

Thx.
Tried it on OSX 10.13.6 but getting "Bad Magic Number" return msg and a new empty file.