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Re:A simple, (as-of-yet unidentified) asymmetric Authenticat... by thadt on Tuesday March 26, 2024 @05:21PM (#39833006)
On a cursory glance, this looks rather quite a bit like a Noise [1] pattern. One rather nice aspect of Noise is that there is a good reference chart for which security properties one should expect from different combinations - saving time on proofs.

[1] https://noiseprotocol.org

Re:A simple, (as-of-yet unidentified) asymmetric Authenticat... by abound on Tuesday March 26, 2024 @05:57PM (#39833329)
While we're talking Noise, I'll plug the excellent Noise Explorer [1], which visualizes handshakes, enumerates security properties, and offers Go + Rust (+ wasm) implementation downloads.

I used this (and the NNpsk0 handshake [2]) as the basis for an E2EE chat app.

[1] https://noiseexplorer.com/

[2] https://noiseexplorer.com/patterns/NNpsk0/

Re:A simple, (as-of-yet unidentified) asymmetric Authenticat... by cobratbq on Tuesday March 26, 2024 @10:20PM (#39835064)
Yeah, thanks for reminding me. That is a nice suggestion.
Re:A simple, (as-of-yet unidentified) asymmetric Authenticat... by crotchfire on Wednesday March 27, 2024 @01:29AM (#39835948)