This article quickly shows the available encryption algorithms for local user passwords on the SRX devices in case they anyone requires to modify or identify them.
While editing a password, we can check the following options:
[edit system login] password { format (sha1 | sha256 | sha512);
This shows us the supported formats for the passwords
For any additional options you can check:
https://www.juniper.net/documentation/us/en/software/junos/user-access/topics/topic-map/user-access-plaintext-password.html