Tuta Launches Post Quantum Cryptography for Email (2024)
Published on: 2025-07-12 17:45:42
Just in time for 10 years of Tuta/Tutanota, we are launching the most significant security upgrade of Tuta Mail with TutaCrypt. This groundbreaking post-quantum encryption protocol will secure emails with a hybrid protocol combining state-of-the-art quantum-safe algorithms with traditional algorithms (AES/ECC) making Tuta Mail the world's first email provider that can protect emails from quantum computer attacks.
We are excited to announce that with this release we are enabling quantum-safe encryption by default for all new Tuta Mail accounts. We are now replacing the classic asymmetric cryptography (RSA-2048) with our quantum-safe hybrid encryption protocol called TutaCrypt: It combines a post-quantum Key Encapsulation Mechanism (CRYSTALS-Kyber) and an Elliptic-Curve-Diffie-Hellmann key exchange (x25519).
If you want to be among the first to use quantum-resistant encryption for your emails, sign up now for Tuta Mail now!
Arne Möhle, CEO of Tuta Mail comments: “With TutaCrypt we are
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