----- Original Message -----
From: "Tyler Romeo" tylerromeo@gmail.com
It is a matter of stability in PHP. Bcrypt has built-in support in PHP, as does PBKDF2, whereas scrypt requires an extension. It should be noted, however, that the patch that was merged implements an extensible password API, so it would be trivial to implement scrypt support if we wanted to.
Yup: "figure out what general case your particular problem is a special case of, and then implement the general case".
Cheers, -- jra