HipChat encrypts the messages during the transmission to the AWS server as described here. As far as we know, there isn't any options to change the encryption type used for trasmission or storage.
A good option for you will be to opt in to the HipChat Server beta program where the local admins can store the message data anyway they choose on a local machine. You can sign up for the HipChat Server beta here.
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
...able to use the clients After a bunch of testing (rooms, memberships, check for private message history, and most importantly - the custom emoticons!) nearly everything was looking as we needed, however...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs