octoleo/phpseclib
1
0
Fork 0
mirror of https://github.com/phpseclib/phpseclib.git synced 2025-01-27 09:08:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

- add pbkdf2 support via setPassword()

Browse Source 
git-svn-id: http://phpseclib.svn.sourceforge.net/svnroot/phpseclib/trunk@185 21d32557-59b3-4da0-833f-c5933fad653e
This commit is contained in:
Jim Wigginton 2011-11-13 02:23:56 +00:00
parent bc1c12357d
commit a00a5e6ba4
4 changed files with 218 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
phpseclib/Crypt/DES.php
View File

@ -369,6 +369,59 @@ class Crypt_DES {
$this->changed = true;
}
/**
* Sets the password.
*
* Depending on what $method is set to, setPassword()'s (optional) parameters are as follows:
* {@link http://en.wikipedia.org/wiki/PBKDF2 pbkdf2}:
* $hash, $salt, $method
*
* @param String $password
* @param optional String $method
* @access public
*/
function setPassword($password, $method = 'pbkdf2')
{
$key = '';
switch ($method) {
default: // 'pbkdf2'
list(, , $hash, $salt, $count) = func_get_args();
if (!isset($hash)) {
$hash = 'sha1';
}
// WPA and WPA use the SSID as the salt
if (!isset($salt)) {
$salt = 'phpseclib';
}
// RFC2898#section-4.2 uses 1,000 iterations by default
// WPA and WPA2 use 4,096.
if (!isset($count)) {
$count = 1000;
}
if (!class_exists('Crypt_Hash')) {
require_once('Crypt/Hash.php');
}
$i = 1;
while (strlen($key) < 8) { // $dkLen == 8
//$dk.= $this->_pbkdf($password, $salt, $count, $i++);
$hmac = new Crypt_Hash();
$hmac->setHash($hash);
$hmac->setKey($password);
$f = $u = $hmac->hash($salt . pack('N', $i++));
for ($j = 2; $j <= $count; $j++) {
$u = $hmac->hash($u);
$f^= $u;
}
$key.= $f;
}
}
$this->setKey($key);
}
/**
* Sets the initialization vector. (optional)
*

59
phpseclib/Crypt/RC4.php
View File

@ -241,6 +241,65 @@ class Crypt_RC4 {
$this->encryptStream = $this->decryptStream = $keyStream;
}
/**
* Sets the password.
*
* Depending on what $method is set to, setPassword()'s (optional) parameters are as follows:
* {@link http://en.wikipedia.org/wiki/PBKDF2 pbkdf2}:
* $hash, $salt, $method, $dkLen
*
* @param String $password
* @param optional String $method
* @access public
*/
function setPassword($password, $method = 'pbkdf2')
{
$key = '';
switch ($method) {
default: // 'pbkdf2'
list(, , $hash, $salt, $count) = func_get_args();
if (!isset($hash)) {
$hash = 'sha1';
}
// WPA and WPA use the SSID as the salt
if (!isset($salt)) {
$salt = 'phpseclib';
}
// RFC2898#section-4.2 uses 1,000 iterations by default
// WPA and WPA2 use 4,096.
if (!isset($count)) {
$count = 1000;
}
if (!isset($count)) {
$count = 1000;
}
if (!isset($dkLen)) {
$count = 1000;
}
if (!class_exists('Crypt_Hash')) {
require_once('Crypt/Hash.php');
}
$i = 1;
while (strlen($key) < $dkLen) {
//$dk.= $this->_pbkdf($password, $salt, $count, $i++);
$hmac = new Crypt_Hash();
$hmac->setHash($hash);
$hmac->setKey($password);
$f = $u = $hmac->hash($salt . pack('N', $i++));
for ($j = 2; $j <= $count; $j++) {
$u = $hmac->hash($u);
$f^= $u;
}
$key.= $f;
}
}
$this->setKey(substr($key, 0, $dkLen));
}
/**
* Dummy function.
*

54
phpseclib/Crypt/Rijndael.php
View File

@ -577,6 +577,60 @@ class Crypt_Rijndael {
$this->changed = true;
}
/**
* Sets the password.
*
* Depending on what $method is set to, setPassword()'s (optional) parameters are as follows:
* {@link http://en.wikipedia.org/wiki/PBKDF2 pbkdf2}:
* $hash, $salt, $method
* Set $dkLen by calling setKeyLength()
*
* @param String $password
* @param optional String $method
* @access public
*/
function setPassword($password, $method = 'pbkdf2')
{
$key = '';
switch ($method) {
default: // 'pbkdf2'
list(, , $hash, $salt, $count) = func_get_args();
if (!isset($hash)) {
$hash = 'sha1';
}
// WPA and WPA use the SSID as the salt
if (!isset($salt)) {
$salt = 'phpseclib';
}
// RFC2898#section-4.2 uses 1,000 iterations by default
// WPA and WPA2 use 4,096.
if (!isset($count)) {
$count = 1000;
}
if (!class_exists('Crypt_Hash')) {
require_once('Crypt/Hash.php');
}
$i = 1;
while (strlen($key) < $this->key_size) { // $dkLen == $this->key_size
//$dk.= $this->_pbkdf($password, $salt, $count, $i++);
$hmac = new Crypt_Hash();
$hmac->setHash($hash);
$hmac->setKey($password);
$f = $u = $hmac->hash($salt . pack('N', $i++));
for ($j = 2; $j <= $count; $j++) {
$u = $hmac->hash($u);
$f^= $u;
}
$key.= $f;
}
}
$this->setKey($key);
}
/**
* Sets the block length
*

52
phpseclib/Crypt/TripleDES.php
View File

@ -363,6 +363,58 @@ class Crypt_TripleDES {
$this->enchanged = $this->dechanged = true;
}
/**
* Sets the password.
*
* Depending on what $method is set to, setPassword()'s (optional) parameters are as follows:
* {@link http://en.wikipedia.org/wiki/PBKDF2 pbkdf2}:
* $hash, $salt, $method
*
* @param String $password
* @param optional String $method
* @access public
*/
function setPassword($password, $method = 'pbkdf2')
{
$key = '';
switch ($method) {
default: // 'pbkdf2'
list(, , $hash, $salt, $count) = func_get_args();
if (!isset($hash)) {
$hash = 'sha1';
}
// WPA and WPA use the SSID as the salt
if (!isset($salt)) {
$salt = 'phpseclib';
}
// RFC2898#section-4.2 uses 1,000 iterations by default
// WPA and WPA2 use 4,096.
if (!isset($count)) {
$count = 1000;
}
if (!class_exists('Crypt_Hash')) {
require_once('Crypt/Hash.php');
}
$i = 1;
while (strlen($key) < 24) { // $dkLen == 24
$hmac = new Crypt_Hash();
$hmac->setHash($hash);
$hmac->setKey($password);
$f = $u = $hmac->hash($salt . pack('N', $i++));
for ($j = 2; $j <= $count; $j++) {
$u = $hmac->hash($u);
$f^= $u;
}
$key.= $f;
}
}
$this->setKey($key);
}
/**
* Sets the initialization vector. (optional)
*