Brickcom Software Users Manual For Firmware release V3.2.x.x - Manual (Page 66)

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Advanced Settings
Automatic Recycle (*)
– Enable to automatically overwrite older files when the available
space remaining on the Micro-SD/SDHC card is less than 100MB. If the Automatic Recycle
function is disabled, there must be at least 50MB hard drive space available for the camera to
be able to record video files.
Offline Record
– Enable to keep recording if the Network Camera is offline.
File Encryption
– Enable the File Encryption to encrypt recorded video files. Files are
encrypted using OPENSSL.
To unlock the encrypted file, please download and install the OPENSSL toolkit from the
OPENSSL Web site.
http://gnuwin32.sourceforge.net/packages/openssl.htm
Use the following command to encrypted file:
openssl enc -ciphername [-in filename] [-out filename] [-pass arg] [-e] [-d] [-a/-base64] [-A] [-k
password] [-kfile filename] [-K key] [-iv IV] [-S salt] [-salt] [-nosalt] [-z] [-md] [-p] [-P] [-bufsize