francescomecca.euenContents © 2020 <a href="mailto:francescomecca.eu">Francesco Mecca</a> Wed, 29 Jan 2020 10:04:35 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rssfrancescomecca.eu/blog/2016/7/6/im-services/Francesco Mecca<div><p>I made this chart for a presentation at the <a href="https://cyber.law.harvard.edu/">Berkman Klein Center</a></p> <table> <thead> <tr> <th></th> <th align="center">Whatsapp</th> <th align="center">Telegram</th> <th align="right">Signal</th> </tr> </thead> <tbody> <tr> <td>Source code</td> <td align="center">closed source</td> <td align="center">open source</td> <td align="right">open source</td> </tr> <tr> <td>Api</td> <td align="center">none</td> <td align="center">various</td> <td align="right">library</td> </tr> <tr> <td>Encription protocol</td> <td align="center">state of the art</td> <td align="center">self made</td> <td align="right">state of the art</td> </tr> <tr> <td>Contact list location</td> <td align="center">cloud</td> <td align="center">cloud</td> <td align="right">cloud, encrypted</td> </tr> <tr> <td>Forward Secrecy</td> <td align="center">yes</td> <td align="center">yes</td> <td align="right">yes</td> </tr> <tr> <td>Database</td> <td align="center">phone storage</td> <td align="center">cloud</td> <td align="right">phone storage</td> </tr> <tr> <td>Backup capability</td> <td align="center">Icloud or Gcloud</td> <td align="center">builtin</td> <td align="right">none</td> </tr> <tr> <td>Revenue</td> <td align="center">ads (Facebook)</td> <td align="center">donation based</td> <td align="right">donation based</td> </tr> <tr> <td>Federation</td> <td align="center">no</td> <td align="center">no</td> <td align="right">no</td> </tr> <tr> <td>Alternative download location</td> <td align="center">website</td> <td align="center">F-Droid</td> <td align="right">none</td> </tr> <tr> <td>Uses third party services</td> <td align="center">no</td> <td align="center">no</td> <td align="right">Google Cloud Messaging</td> </tr> <tr> <td>Servers location</td> <td align="center">US</td> <td align="center">Russia</td> <td align="right">US</td> </tr> <tr> <td>Tied to mobile number</td> <td align="center">yes</td> <td align="center">yes, but nickname available</td> <td align="right">yes</td> </tr> <tr> <td>Desktop client</td> <td align="center">no</td> <td align="center">yes</td> <td align="right">no</td> </tr> </tbody> </table></div>instant messagingmessaging protocolsPesceWandasignaltelegramwhatsappfrancescomecca.eu/blog/2016/7/6/im-services/Wed, 06 Jul 2016 00:00:00 GMT