54: Building Key Transparency at WhatsApp

<p dir="ltr">In April, WhatsApp announced the launch of a new cryptographic security feature to automatically verify a secured connection based on key transparency. Key transparency helps strengthen the guarantee that end-to-end encryption provides to private, personal messaging applications in a transparent manner available to all.</p> <p dir="ltr">Rolling out a feature like this to WhatsApp's user base is not a small feat and requires some clever engineering to scale to the billions of users relying on WhatsApp to stay in touch with friends, family and business.</p> <p dir="ltr">Pascal is joined by Sean and Kevin to discuss what Key Transparency means in practice and the various challenges they encountered as they scaled it up to billions of users.</p> <p dir="ltr">Got feedback? Send it to us on Threads (<a href= "https://threads.net/@metatechpod">https://threads.net/@metatechpod</a>), Twitter (<a href= "https://twitter.com/metatechpod">https://twitter.com/metatechpod</a>), Instagram (<a href= "https://instagram.com/metatechpod">https://instagram.com/metatechpod</a>) and don’t forget to follow our host @passy (<a href= "https://twitter.com/passy">https://twitter.com/passy</a>, <a href= "https://mastodon.social/@passy">https://mastodon.social/@passy</a>, and <a href= "https://threads.net/@passy_">https://threads.net/@passy_</a>). Fancy working with us? Check out <a href= "https://www.metacareers.com/">https://www.metacareers.com/</a>.</p> <p dir="ltr">Links</p> <ul> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">Infer: <a href= "https://fbinfer.com/">https://fbinfer.com/</a></p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">Infer on GitHub: <a href= "https://github.com/facebook/infer">https://github.com/facebook/infer</a></p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">MTP Episode 18 about Infer: <a href="https://pca.st/5U9V">https://pca.st/5U9V</a></p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">Deploying key transparency a