I want to change the default cipher in passwd.conf to Argon2id, for these reasons:
- Argon2id is resistant to GPU-based password cracking attacks. - Argon2id is resistant to side channel attacks. - It allows us to dynamically scale the CPU time and memory required to compute a password hash, making hashes that are strong and difficult to crack on fast machines, while not making you wait an unreasonable amount of time to log in on slow machines. The work to integrate Argon2 into NetBSD was done in 2019 and in the past few weeks I've been cleaning up the code, making sure we match the reference implementation, adding tests and documentation, etc. I've tested the Argon2 implementation and determined it's correct and usable on: - amd64 (Ryzen, Haswell...) - aarch64 (QEMU) - shark - macppc (G4) - sparc (50MHz, Argon2id shaves 7 seconds off login time compared to the current default.)
