Advanced - QoS/Security (Tab) - USB Storage(Section): AES Pass Phrase
The setting holds a pass phrase which is used to encrypt Syslog, SIP-Traces or PCAP-Traces when they are logged to a connected USB storage. Please take a look at the pages of the settings to see how and when the logs are saved to the USB storage. The files are encrypted using an AES 256-bit CBC cipher. The files can be easily decrypted using openssl. You can decrypt a log file which was encrypted by the phone with the following command line:
openssl aes-256-cbc -d -nosalt -pass pass:<your_pass_phrase> -in <logfile> -out <decrpted_logfile>
You can omit the -pass option and enter the pass phrase when prompted. The command line looks like this:
openssl aes-256-cbc -d -nosalt -in <logfile> -out <decrpted_logfile>
The feature is available on all 7xx and 8xx phones with a USB port and MeetingPoint.