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Re:A Really Good Article on How Easy it Is to Crack Passwords by Freaky on Thursday September 05, 2013 @10:24AM (#6334351)
Devise: https://github.com/capita/devise-scrypt PHP: http://pecl.php.net/package/scrypt

So not quite "none", though granted being some random third party addon might as well be for many people (and possibly a good attitude to take for something security-critical).

Re:A Really Good Article on How Easy it Is to Crack Passwords by Xylakant on Thursday September 05, 2013 @10:34AM (#6334438)
ok, my original statement regarding PHP was:

> There's no officially blessed language binding for PHP.

And judging from https://github.com/DomBlack/php-scrypt/issues/9 that's going to stay like that a while. There's a pure PHP implementation that falls back to the pecl package, so that's probably your best bet atm.