[wp-trac] [WordPress Trac] #21022: Use bcrypt for password hashing; updating old hashes

[WordPress Trac]

#21022: Use bcrypt for password hashing; updating old hashes
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 Reporter:  th23                                 |       Owner:  (none)
     Type:  enhancement                          |      Status:  new
 Priority:  normal                               |   Milestone:  Future
                                                 |  Release
Component:  Security                             |     Version:  3.4
 Severity:  major                                |  Resolution:
 Keywords:  2nd-opinion has-patch needs-testing  |     Focuses:
  dev-feedback                                   |
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Comment (by ryanhellyer):

 https://github.com/paragonie/sodium_compat#features-excluded-from-this-
 polyfill


 {{{
 It's not feasible to polyfill scrypt or Argon2 into PHP and get reasonable
 performance. Users would feel motivated to select parameters that
 downgrade security to avoid denial of service (DoS) attacks.
 }}}

 That seems to imply that running a simple PHP based library would not be
 viable due to performance reasons, and the subsequent issues with DDOS
 attacks that could occur relating to that.

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Ticket URL: <https://core.trac.wordpress.org/ticket/21022#comment:136>
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