Unix and Linux Discussions Tagged with hash |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
7 |
13,071 |
Shell Programming and Scripting |
|
|
|
3 |
4,288 |
Shell Programming and Scripting |
|
|
|
2 |
11,865 |
Shell Programming and Scripting |
|
|
|
1 |
4,772 |
Shell Programming and Scripting |
|
|
|
1 |
4,263 |
Shell Programming and Scripting |
|
|
|
3 |
4,223 |
Shell Programming and Scripting |
|
|
|
3 |
2,772 |
Shell Programming and Scripting |
|
|
|
2 |
35,491 |
Ubuntu |
|
|
|
3 |
4,923 |
Web Development |
|
|
|
7 |
2,446 |
Programming |
|
|
|
2 |
8,924 |
Shell Programming and Scripting |
|
|
|
0 |
4,563 |
UNIX for Advanced & Expert Users |
|
|
|
0 |
3,783 |
Shell Programming and Scripting |
|
|
|
2 |
11,535 |
UNIX for Dummies Questions & Answers |
|
|
|
3 |
29,516 |
Shell Programming and Scripting |
|
|
|
6 |
23,041 |
Shell Programming and Scripting |
|
|
|
11 |
12,967 |
Shell Programming and Scripting |
|
|
|
0 |
911 |
Software Releases - RSS News |
|
|
|
0 |
784 |
Software Releases - RSS News |
|
|
|
2 |
1,947 |
Shell Programming and Scripting |
|
|
|
0 |
700 |
Software Releases - RSS News |
|
|
|
8 |
15,781 |
Solaris |
|
|
|
1 |
7,322 |
Shell Programming and Scripting |
|
|
|
0 |
775 |
Software Releases - RSS News |
|
|
|
9 |
5,954 |
Shell Programming and Scripting |
|
|
|
2 |
42,710 |
Shell Programming and Scripting |
|
|
|
3 |
2,681 |
Shell Programming and Scripting |
|
|
|
2 |
6,085 |
UNIX for Dummies Questions & Answers |
|
|
|
0 |
1,636 |
UNIX and Linux RSS News |
|
|
|
0 |
3,050 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
2,796 |
Programming |
|
|
|
1 |
2,829 |
Shell Programming and Scripting |
|
|
|
1 |
2,625 |
Shell Programming and Scripting |
|
|
|
1 |
2,557 |
Shell Programming and Scripting |
|
|
|
1 |
3,142 |
Shell Programming and Scripting |
|
|
|
0 |
1,891 |
Security Advisories (RSS) |
|
|
|
0 |
736 |
Software Releases - RSS News |
|
|
|
1 |
17,057 |
Shell Programming and Scripting |
|
|
|
17 |
11,742 |
Shell Programming and Scripting |
|
|
|
5 |
5,916 |
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)