Unix and Linux Discussions Tagged with hash |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
7 |
15,396 |
Shell Programming and Scripting |
|
|
|
3 |
4,515 |
Shell Programming and Scripting |
|
|
|
2 |
11,970 |
Shell Programming and Scripting |
|
|
|
1 |
4,910 |
Shell Programming and Scripting |
|
|
|
1 |
4,565 |
Shell Programming and Scripting |
|
|
|
3 |
4,322 |
Shell Programming and Scripting |
|
|
|
3 |
2,870 |
Shell Programming and Scripting |
|
|
|
2 |
36,069 |
Ubuntu |
|
|
|
3 |
5,003 |
Web Development |
|
|
|
7 |
2,480 |
Programming |
|
|
|
2 |
9,078 |
Shell Programming and Scripting |
|
|
|
0 |
4,674 |
UNIX for Advanced & Expert Users |
|
|
|
0 |
3,885 |
Shell Programming and Scripting |
|
|
|
2 |
11,655 |
UNIX for Dummies Questions & Answers |
|
|
|
3 |
29,742 |
Shell Programming and Scripting |
|
|
|
6 |
23,112 |
Shell Programming and Scripting |
|
|
|
11 |
13,444 |
Shell Programming and Scripting |
|
|
|
0 |
922 |
Software Releases - RSS News |
|
|
|
0 |
800 |
Software Releases - RSS News |
|
|
|
2 |
1,986 |
Shell Programming and Scripting |
|
|
|
0 |
710 |
Software Releases - RSS News |
|
|
|
8 |
15,916 |
Solaris |
|
|
|
1 |
7,594 |
Shell Programming and Scripting |
|
|
|
0 |
790 |
Software Releases - RSS News |
|
|
|
9 |
6,049 |
Shell Programming and Scripting |
|
|
|
2 |
42,947 |
Shell Programming and Scripting |
|
|
|
3 |
2,727 |
Shell Programming and Scripting |
|
|
|
2 |
6,182 |
UNIX for Dummies Questions & Answers |
|
|
|
0 |
1,682 |
UNIX and Linux RSS News |
|
|
|
0 |
3,112 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
2,843 |
Programming |
|
|
|
1 |
2,876 |
Shell Programming and Scripting |
|
|
|
1 |
2,695 |
Shell Programming and Scripting |
|
|
|
1 |
2,615 |
Shell Programming and Scripting |
|
|
|
1 |
3,167 |
Shell Programming and Scripting |
|
|
|
0 |
1,924 |
Security Advisories (RSS) |
|
|
|
0 |
748 |
Software Releases - RSS News |
|
|
|
1 |
17,136 |
Shell Programming and Scripting |
|
|
|
17 |
11,815 |
Shell Programming and Scripting |
|
|
|
5 |
5,975 |
Programming |
PASSWORD_NEEDS_REHASH(3) 1 PASSWORD_NEEDS_REHASH(3)
password_needs_rehash - Checks if the given hash matches the given options
SYNOPSIS
boolean password_needs_rehash (string $hash, integer $algo, [array $options])
DESCRIPTION
This function checks to see if the supplied hash implements the algorithm and options provided. If not, it is assumed that the hash needs
to be rehashed.
PARAMETERS
o $hash
- A hash created by password_hash(3).
o $algo
- A password algorithm constant denoting the algorithm to use when hashing the password.
o $options
- An associative array containing options. See the password algorithm constants for documentation on the supported options for
each algorithm.
EXAMPLES
Example #1
Usage of password_needs_rehash(3)
<?php
$password = 'rasmuslerdorf';
$hash = '$2y$10$YCFsG6elYca568hBi2pZ0.3LDL5wjgxct1N8w/oLR/jfHsiQwCqTS';
// The cost parameter can change over time as hardware improves
$options = array('cost' => 11);
// Verify stored hash against plain-text password
if (password_verify($password, $hash)) {
// Check if a newer hashing algorithm is available
// or the cost has changed
if (password_needs_rehash($hash, PASSWORD_DEFAULT, $options)) {
// If so, create a new hash, and replace the old one
$newHash = password_hash($password, PASSWORD_DEFAULT, $options);
}
// Log user in
}
?>
RETURN VALUES
Returns TRUE if the hash should be rehashed to match the given $algo and $options, or FALSE otherwise.
PHP Documentation Group PASSWORD_NEEDS_REHASH(3)