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Fix Argon2 options checks 

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>
This commit is contained in:
MichaIng 2020-04-28 21:04:34 +02:00 committed by backportbot[bot]
parent 4e334dd42c
commit b7f2f9307b
2 changed files with 10 additions and 10 deletions
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15
lib/private/Security/Hasher.php
View File

@ -63,16 +63,11 @@ class Hasher implements IHasher {
if (\defined('PASSWORD_ARGON2I')) {
// password_hash fails, when the minimum values are undershot.
// In this case, ignore and revert to default
if ($this->config->getSystemValueInt('hashingMemoryCost', PASSWORD_ARGON2_DEFAULT_MEMORY_COST) >= 8) {
$this->options['memory_cost'] = $this->config->getSystemValueInt('hashingMemoryCost', PASSWORD_ARGON2_DEFAULT_MEMORY_COST);
}
if ($this->config->getSystemValueInt('hashingTimeCost', PASSWORD_ARGON2_DEFAULT_MEMORY_COST) >= 1) {
$this->options['time_cost'] = $this->config->getSystemValueInt('hashingTimeCost', PASSWORD_ARGON2_DEFAULT_TIME_COST);
}
if ($this->config->getSystemValueInt('hashingThreads', PASSWORD_ARGON2_DEFAULT_MEMORY_COST) >= 1) {
$this->options['threads'] = $this->config->getSystemValueInt('hashingThreads', PASSWORD_ARGON2_DEFAULT_THREADS);
}
// In this case, apply minimum.
$this->options['threads'] = max($this->config->getSystemValueInt('hashingThreads', PASSWORD_ARGON2_DEFAULT_THREADS), 1);
// The minimum memory cost is 8 KiB per thread.
$this->options['memory_cost'] = max($this->config->getSystemValueInt('hashingMemoryCost', PASSWORD_ARGON2_DEFAULT_MEMORY_COST), $this->options['threads'] * 8);
$this->options['time_cost'] = max($this->config->getSystemValueInt('hashingTimeCost', PASSWORD_ARGON2_DEFAULT_TIME_COST), 1);
}
$hashingCost = $this->config->getSystemValue('hashingCost', null);

5
tests/lib/Security/HasherTest.php
View File

@ -102,6 +102,11 @@ class HasherTest extends \Test\TestCase {
$this->config = $this->createMock(IConfig::class);
$this->config->method('getSystemValueInt')
->willReturnCallback(function ($name, $default) {
return $default;
});
$this->hasher = new Hasher($this->config);
}