riverrun/comeonin

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1317 stars · 62 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Comeonin is a specification (behaviours) for password hashing libraries in Elixir, defining Comeonin and Comeonin.PasswordHash behaviours. Since version 5 it is a dependency of concrete hashing libraries like argon2_elixir, bcrypt_elixir, and pbkdf2_elixir rather than a tool used directly.

Use cases

• hash user passwords securely in an Elixir app
• implement a custom password hashing library for Elixir
• swap between argon2, bcrypt, and pbkdf2 behind a common interface
• choose a password hashing algorithm for a Phoenix application
• avoid GPU-accelerated password cracking with argon2
• find a pure-Erlang password hashing option for Windows

When to choose

• you are building a password hashing library for the Elixir ecosystem
• you want a common behaviour interface so hashing backends are swappable
• you need guidance on choosing argon2 vs bcrypt vs pbkdf2

When to avoid

• you just need to hash passwords in an app - depend on argon2_elixir or bcrypt_elixir directly instead
• you need general-purpose cryptographic hashing like SHA-256 for non-password data
• you are not working in the Elixir/Erlang ecosystem

Facets

library · maturity stable

auth cryptography security security backend web-development windows elixir password-hashing argon2 bcrypt pbkdf2 elixir behaviour-specification linux macos

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