add 7zip

external/integrity/transfer/owncloud-privatebin/owncloud-privatebin.md

@@ -14,6 +14,8 @@ redirect_from:
 This How-to Card provides a step-by-step guide on how to transfer Human Data via LCSB Owncloud securely. Please note that this How-to Card is intended for the use case where data is < 4 GB and categorized as [sensitive]({{ '/?qms:LCSB-POL-BIC-01' | relative_url }}), in which encryption must be in place as well as secure exchange of encryption password with PrivateBin. If you wish to share Human Data **recurrently** with e.g. external collaborators, we recommend using Owncloud with Cryptomator for encryption of data on the cloud. For further information, please visit the dedicated card on [Cryptomator]({{ '/?exchange-channels:cryptomator' | relative_url}}).   
 
 1. Use a default zip software installed on your Uni.lu laptop to zip your file(s) with a strong password. 
+* You can use any zip tool that supports the AES256, e.g. [7-zip](https://www.7-zip.org/download.html). Please make sure *NOT* to change the default encryption from AES256 to ZipCrypto like displayed below. 
+<img src='img/7zpassword.png' height="300px">
 * Use a password generator (e.g. [dice ware](https://diceware.dmuth.org/), [BitWarden](https://bitwarden.com/), [KeePass](https://keepass.info/)) to make the password strong.
 2. Go to [LCSB PrivateBin](https://privatebin.lcsb.uni.lu/) and type/add the password in the Editor tab. If you do not have a LUMS account, please use [HPC PrivateBin](https://hpc.uni.lu/privatebin/), which do not require any account.  
 3. Enable the feature "Burn after reading" by ticking the checkbox. This means that the link to the password can only be used **once** so it expires upon first access.