Posted on 05-23-2020.
With the potential to perform more advanced calculations and create more complex processing networks, quantum computers also pose new risks of compromising the most sophisticated cybersecurity systems. To address this issue, the team behind end-to-end encrypted email software Tutanota and the Leibniz University of Hannover have jointly begun a dedicated research project. The parties claim to develop a quantum computer resistant cryptography to protect Tutanota email application users against potential decryption of all currently encrypted emails. Tutanota explained to forklog.media:
“Quantum computers do [...] pose a serious threat to cryptography as the asymmetric cryptosystems that are widely used today (RSA, (EC)DSA and (EC)DH), rely on variants of only two hard mathematical problems that, unfortunately, quantum computers are able to solve significantly faster: the integer factorization problem and the discrete logarithm problem.”
“The particular challenge of the project is that the encryption algorithms must be secure but also perform well. Encryption must be performant in the browser, in desktop clients as well as on mobile devices via Android and iOS App, so that even older devices with low memory and computing power can perform the encryption and decryption,” the company noted in the blog post.Tutanota told forklog.media that it does not expect major email service providers to introduce quantum-safe encryption, further adding:
“Google once launched a project to add end-to-end encryption to Gmail, but discontinued it in 2017. There is no interest from big corporations to encrypt users' data because it would destroy their business model of creating user profiles and posting targeted advertisements.”