3 ms·
What’s ML-KEM X25519? I’m familiar with Ed25519, but I’ve never heard of ML-KEM. (Also not a cryptographer)
by WhyNotHugo 2y ago
What’s ML-KEM X25519? I’m familiar with Ed25519, but I’ve never heard of ML-KEM.
(Also not a cryptographer)
- tptacek 2y agoML-KEM is Kyber, the lattice-based winner of the NIST PQ KEM competition (think of a KEM as a public-key encryption and delivery of a key, as opposed to Diffie Hellman, in which both sides agree on a key together). It's a key establishment mechanism that resists quantum attacks.
- marcus0x62 2y agoFor anyone unfamiliar with the acronyms: PQ = Post Quantum (cryptography) KEM = Key Encapsulation Method
- telgareith 2y agoKyber? For some reason I hear that and think "isn't that the PQ with a foundational Assumption(!) that's been proven trivial for binary computers to break?"
- zinekeller 2y agoI'm not sure for Kyber, but SIKE/SIDH (another PQ candidate) does have those exact problems (https://eprint.iacr.org/2022/975.pdf https://eprint.iacr.org/2022/975.pdf)
- tptacek 2y agoCompletely unrelated algorithms; it might be hard to come up with two algorithms less related to each other than module lattices LWE and supersingular isogeny graph Diffie Hellman --- even the outcomes of the two algorithmic approaches are different (SIDH was attractive because it gives you a Diffie Hellman, and Kyber gives you a KEM). (I just want to make it clear that this isn't a lingering concern about lattice cryptography, fwiw.)
- tptacek 2y agoNo.
- homebrewer 2y agohttps://lwn.net/Articles/973231 https://lwn.net/Articles/973231
- dangsux 2y ago[dead]