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WhatsApp launches a private beta test of support for multiple devices



Until now, using the WhatsApp network on the desktop or other devices has required having a phone turned on and connected, but a new beta test is trying to support multiple devices without needing a phone in the mix. In an interview in June, WhatsApp CEO Will Cathcart and his boss, Facebook CEO Mark Zuckerberg, commented on the technical challenge of maintaining end-to-end encryption. With a blog post today, Cathcart explains more about what has been done behind the scenes to maintain security.

WhatsApps messaging architecture.
Photo: Facebook

When the image that compares the inheritance and the new systems (above) try to explain, a user’s phone has previously managed the key that determines the identity and the ability to encrypt / decrypt messages. The encrypted synchronization also applies to message history, contact names and other data, with keys maintained on the individual devices.

To get started, the beta goes out to a limited group of testers who are already in WhatsApp’s beta program, while the team says they’re working to improve performance and add more features.




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