Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: MichaIng <micha@dietpi.com>

The minimum for memory cost is 8 KiB per thread. Threads must be checked and set first to allow checking against the correct memory cost mimimum.
Options are now applied the following way:
- If config.php contains the setting with an integer higher or equal to the minimum, it is applied.
- If config.php contains the setting with an integer lower than the minimum, the minimum is applied.
- If config.php does not contain the setting or with no integer value, the PHP default is applied.

Signed-off-by: MichaIng <micha@dietpi.com>
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

To continue this formatting madness, here's a tiny patch that adds
unified formatting for control structures like if and loops as well as
classes, their methods and anonymous functions. This basically forces
the constructs to start on the same line. This is not exactly what PSR2
wants, but I think we can have a few exceptions with "our" style. The
starting of braces on the same line is pracrically standard for our
code.

This also removes and empty lines from method/function bodies at the
beginning and end.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

When available we should use argon2id for hashing.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

Co-Authored-By: kesselb <mail@danielkesselberg.de>

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

When on php7.2 we can use the new and improved ARGON2I hashing.
This adds support for that to the hasher. When verifying an old hash
we'll update rehash to move all hashes eventually to the new hash
function.

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

* Add typehints
* Add return types
* Opcode opts from phpstorm
* Made strict
* Fixed tests: No need to test bogus values anymore strict typing fixes
this

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

This reverts commit 6a1a4880.

Public interface for hashing which also works with legacy ownCloud hashes and supports updating the legacy hash via a passed reference.

Follow-up of https://github.com/owncloud/core/pull/10219#issuecomment-61624662
Requires https://github.com/owncloud/3rdparty/pull/136