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Argon2 in Ada

Overview

This provides access to the Argon2 API in a safe and convenient wrapper. Note that it is a binding to the C-based argon2 library rather than a pure-Ada reimplementation.

Usage

package Hash is new Argon2Ada.Hasher
    (Output_Len => 128, Pass_Len => 64);

-- Parameters here are arbitrary; don't blindly copy them!
Config :=
    (Time_Cost => 1, Mem_Cost => 64, Lanes => 4,
    Version => Argon2Ada.Version_13,
    Alg_Type => ID,
    Flags => Argon2Ada.Wipe_None);

Result := Config.Hash (Pass, Salt);

See argon2ada.ads for everything else.

Building

$ gprbuild -P argon2ada

Testing

$ gprbuild -P tests
$ ./bin/tests

Get Involved?

This isn't too complex a project, but I would love another pair of eyes on the code. My Ada is rough and cryptography is hard. In the short term, I'm looking to increase test coverage, in the medium term, proving type safety with SPARK is on the agenda, and it may prove useful to potentially automatically generate Argon2Ada.Raw over the long term. If you want to help with any of that or review the code that's already here, I would be very grateful.