Decrypt Files from QNAP with OpenSSL

To decrypt files that was encrypted on a QNAP, use the following command.

From the Linux terminal:

    Decrypt one file

        openssl enc -d -aes-256-cbc -k <decrypt password> -in filename.jpg -out filename.jpg

    Decrypt multiple files in a folder.

        for f in * ; do [ -f $f ] && openssl enc -d -aes-256-cbc -k <decrypt password> -in $f -out _$f;