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REDDIT

Any Practical Use of Menezes Qu Vanstone over Authenticated Diffie-Hellman

F
Aug 17, 2025 · 01:43

I was studying Menezes Qu Vanstone from Serious Cryptography 2nd Edition. Aumasson mentions MQV is elegant and more secure than Authenticated Diffie-Hellman.

You cannot break MQV just by leaking ephemeral secrets.

Even if a long-term key is compromised the previously established keys are safe since they were derived using ephemeral secrets.

It does \*not\* offer perfect forward secrecy (although both users can do a key confirmation step to mitigate that).

I was just wondering...are there any cases in real life where MQV is preferable in practice over Authenticated Diffie-Hellman?

I thank in advance for any responses!