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reformating of code

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more steps in simple password strength calculation
This commit is contained in:
steinm 2012-12-14 20:41:56 +00:00
parent da33fb1de7
commit 93ff0f13aa
1 changed files with 221 additions and 311 deletions
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532
inc/inc.ClassPasswordStrength.php
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@ -22,346 +22,256 @@
* * * *
*************************************************************************/ *************************************************************************/
class Password_Strength class Password_Strength {
{ private $class_name = "password strength";
private $class_name = "Password Strength"; private $class_version = "1.0.0";
private $class_version = "1.0.0"; private $class_author = "wolf software";
private $class_author = "Wolf Software"; private $class_source = "http://www.wolf-software.com/downloads/php-classes/security-classes/password-strength-class/";
private $class_source = "http://www.wolf-software.com/downloads/php-classes/security-classes/password-strength-class/";
private $password = ''; private $password = '';
private $password_info = array(); private $password_info = array();
private $password_length = 0; private $password_length = 0;
private $score_precision = 2; private $score_precision = 2;
public function class_name() public function class_name() {
{ return $this->class_name;
return $this->class_name; }
}
public function class_version() public function class_version() {
{ return $this->class_version;
return $this->class_version; }
}
public function class_author() public function class_author() {
{ return $this->class_author;
return $this->class_author; }
}
public function class_source() public function class_source() {
{ return $this->class_source;
return $this->class_source; }
}
public function __construct() public function __construct() {
{ }
}
public function simple_calculate() public function simple_calculate() {
{
$password = $this->password; $password = $this->password;
if($this->password_length < 8 || $score = 0;
!preg_match('/[0-9]+/', $password) || if(preg_match('/[0-9]+/', $password))
!preg_match('/[a-z]+/', $password) || $score += 25;
!preg_match('/[A-Z]+/', $password) || if(preg_match('/[a-z]+/', $password))
!preg_match('/[^0-9a-zA-Z]+/', $password)) $score += 25;
{ if(preg_match('/[A-Z]+/', $password))
$score += 25;
if(preg_match('/[^0-9a-zA-Z]+/', $password))
$score += 25;
if($this->password_length < 8)
$score *= ($this->password_length/8);
$this->password_info['total_score'] = $score;
$this->password_info['rating_score'] = $score;
$this->password_info['rating'] = $this->get_score_info($score);
}
public function calculate() {
$this->password_info = array();
$this->password_info['password'] = $this->password;
$this->password_info['password_length'] = $this->password_length;
if($this->password_length == 0) {
$this->password_info['total_score'] = 0; $this->password_info['total_score'] = 0;
$this->password_info['rating_score'] = 0; $this->password_info['rating_score'] = 0;
$this->password_info['rating'] = 'Insufficient'; $this->password_info['rating'] = 'Very Bad';
} return;
else
{
$this->password_info['total_score'] = 100;
$this->password_info['rating_score'] = 100;
$this->password_info['rating'] = 'Good';
}
} }
public function calculate() $this->calculate_length();
{ $this->calculate_complexity();
$this->password_info = array(); $this->calculate_charset_complexity();
$this->calculate_entropy();
$this->calculate_length(); $total = 0;
$this->calculate_complexity(); $scoreCount = 0;
$this->calculate_charset_complexity(); $keys = array_keys($this->password_info['details']);
$this->calculate_entropy(); foreach ($keys as $key) {
if (preg_match('/score+$/', $key)) {
$total += intval($this->password_info['details'][$key]);
$scoreCount ++;
}
}
$rating_score = round($total / $scoreCount, $this->score_precision);
$score_info = $this->get_score_info($rating_score);
$this->password_info['password'] = $this->password; $this->password_info['total_score'] = $total;
$this->password_info['password_length'] = $this->password_length; $this->password_info['rating_score'] = $rating_score;
$this->password_info['rating'] = $score_info;
$total = 0; ksort($this->password_info);
$scoreCount = 0; ksort($this->password_info['details']);
$keys = array_keys($this->password_info['details']); }
foreach ($keys as $key)
{
if (preg_match('/score+$/', $key))
{
$total += intval($this->password_info['details'][$key]);
$scoreCount ++;
}
}
$rating_score = round($total / $scoreCount, $this->score_precision);
$score_info = $this->get_score_info($rating_score);
$this->password_info['total_score'] = $total; public function get_all_info() {
$this->password_info['rating_score'] = $rating_score; return $this->password_info;
$this->password_info['rating'] = $score_info; }
ksort($this->password_info); public function get_score() {
ksort($this->password_info['details']); return $this->password_info['rating_score'];
} }
public function get_all_info() public function get_rating() {
{ return $this->password_info['rating'];
return $this->password_info; }
}
public function get_score() public function set_password($password) {
{ $this->password = $password;
return $this->password_info['rating_score']; $this->password_length = strlen($password);
} }
public function get_rating() private function calculate_charset_complexity() {
{ $password = $this->password;
return $this->password_info['rating']; $len = strlen($password);
}
public function set_password($password) $char = '';
{ $last_char = '';
$this->password = $password; $different_count = 0;
$this->password_length = strlen($password); $score = 0;
}
private function calculate_charset_complexity() if ($len <= 3) {
{ $score = 2;
$password = $this->password; } else {
$len = strlen($password); for ($i = 0; $i < $len; $i++) {
$char = substr($password, $i, 1);
if ($i > 0) {
$last_char = substr($password, $i - 1, 1);
}
if ($char != $last_char) {
$different_count++;
}
}
if ($len <= 5) {
$score = 10;
} elseif ($different_count == 1) {
$score = 1;
$this->password_info['details']['length_score'] = min(min(floor(10 * $this->password_length / 10), 20), $this->password_info['details']['length_score']);
} elseif ($different_count == 2) {
$score = 5;
$this->password_info['details']['length_score'] = min(min(floor(20 * $this->password_length / 10), 40), $this->password_info['details']['length_score']);
} elseif ($different_count == 3) {
$score = 10;
$this->password_info['details']['length_score'] = min(min(floor(30 * $this->password_length / 10), 50), $this->password_info['details']['length_score']);
} else {
$score = round(max($this->password_info['details']['length_score'] / 10, $different_count / $len * 100), $this->score_precision);
}
}
$this->password_info['details']['charset_complexity_score'] = $score;
}
$char = ''; private function calculate_complexity() {
$last_char = ''; $password = $this->password;
$different_count = 0; $score = 0;
$score = 0;
if ($len <= 3) if (preg_match('/^([0-9]+)+$/', $password)) {
{ $score = 10;
$score = 2; $this->password_info['details']['charset'] = 'numeric';
} } elseif (preg_match('/^([a-z]+)+$/', $password)) {
else $score = 30;
{ $this->password_info['details']['charset'] = 'alphabetic';
for ($i = 0; $i < $len; $i++) } elseif (preg_match('/^([a-z0-9]+)+$/i', $password)) {
{ if ((preg_match('/^([a-z]+)([0-9]+)+$/i', $password, $match)) || (preg_match('/^([0-9]+)([a-z]+)+$/i', $password, $match))) {
$char = substr($password, $i, 1); $alpha = $match[1];
if ($i > 0) $numeric = $match[2];
{ $numeric_length = strlen($numeric);
$last_char = substr($password, $i - 1, 1);
}
if ($char != $last_char)
{
$different_count++;
}
}
if ($len <= 5)
{
$score = 10;
}
else if ($different_count == 1)
{
$score = 1;
$this->password_info['details']['length_score'] = min(min(floor(10 * $this->password_length / 10), 20), $this->password_info['details']['length_score']);
}
else if ($different_count == 2)
{
$score = 5;
$this->password_info['details']['length_score'] = min(min(floor(20 * $this->password_length / 10), 40), $this->password_info['details']['length_score']);
}
else if ($different_count == 3)
{
$score = 10;
$this->password_info['details']['length_score'] = min(min(floor(30 * $this->password_length / 10), 50), $this->password_info['details']['length_score']);
}
else
{
$score = round(max($this->password_info['details']['length_score'] / 10, $different_count / $len * 100), $this->score_precision);
}
}
$this->password_info['details']['charset_complexity_score'] = $score;
}
private function calculate_complexity() if (($numeric == 111) || ($numeric == 123)) {
{ if (preg_match('/^([a-z]+)([0-9]+)+$/i', $password, $match)) {
$password = $this->password; $score = 31;
$score = 0; } else {
$score = 35;
}
$this->password_info['details']['common_numeric'] = true;
} elseif ($numeric_length == 1) {
$score = 30;
} elseif ($numeric_length <= 3) {
$score = 35;
} elseif ($numeric_length <= 5) {
$score = 40;
} elseif ($numeric_length <= 10) {
$score = 50;
} else {
$score = 60;
}
$this->password_info['details']['charset'] = 'alphanumeric';
} else {
$score = 80;
$this->password_info['details']['charset'] = 'alphanumeric';
}
} else {
$score = 100;
$this->password_info['details']['charset'] = 'alphanumeric + others';
}
$this->password_info['details']['charset_score'] = $score;
}
if (preg_match('/^([0-9]+)+$/', $password)) private function calculate_length() {
{ $len = $this->password_length;
$score = 10; $score = 0;
$this->password_info['details']['charset'] = 'numeric';
}
else if (preg_match('/^([a-z]+)+$/', $password))
{
$score = 30;
$this->password_info['details']['charset'] = 'alphabetic';
}
else if (preg_match('/^([a-z0-9]+)+$/i', $password))
{
if ((preg_match('/^([a-z]+)([0-9]+)+$/i', $password, $match)) || (preg_match('/^([0-9]+)([a-z]+)+$/i', $password, $match)))
{
$alpha = $match[1];
$numeric = $match[2];
$numeric_length = strlen($numeric);
if (($numeric == 111) || ($numeric == 123)) if ($len == 0) {
{ $score = 0;
if (preg_match('/^([a-z]+)([0-9]+)+$/i', $password, $match)) } elseif ($len <= 3) {
{ $score = 1;
$score = 31; } elseif ($len <= 4) {
} $score = 2;
else } elseif ($len <= 5) {
{ $score = 10;
$score = 35; } elseif ($len <= 6) {
} $score = 20;
$this->password_info['details']['common_numeric'] = true; } elseif ($len <= 8) {
} $score = 30;
else if ($numeric_length == 1) } elseif ($len <= 10) {
{ $score = 45;
$score = 30; } elseif ($len <= 15) {
} $score = 75;
else if ($numeric_length <= 3) } elseif ($len <= 18) {
{ $score = 80;
$score = 35; } elseif ($len <= 20) {
} $score = 90;
else if ($numeric_length <= 5) } else {
{ $score = 100;
$score = 40; }
} $this->password_info['details']['length_score'] = $score;
else if ($numeric_length <= 10) }
{
$score = 50;
}
else
{
$score = 60;
}
$this->password_info['details']['charset'] = 'alphanumeric';
}
else
{
$score = 80;
$this->password_info['details']['charset'] = 'alphanumeric';
}
}
else
{
$score = 100;
$this->password_info['details']['charset'] = 'alphanumeric + others';
}
$this->password_info['details']['charset_score'] = $score;
}
private function calculate_length() private function calculate_entropy() {
{ $score = 0;
$len = $this->password_length; $password = $this->password;
$score = 0; $length = $this->password_length;
if ($len == 0) foreach (count_chars($password, 1) as $v) {
{ $p = $v / $length;
$score = 0; $score -= $p * log($p)/log(2);
} }
else if ($len <= 3) $this->password_info['details']['entropy_per_character'] = round($score, $this->score_precision);
{ $this->password_info['details']['entropy_score'] = round(($score * $length), $this->score_precision);
$score = 1; }
}
else if ($len <= 4)
{
$score = 2;
}
else if ($len <= 5)
{
$score = 10;
}
else if ($len <= 6)
{
$score = 20;
}
else if ($len <= 8)
{
$score = 30;
}
else if ($len <= 10)
{
$score = 45;
}
else if ($len <= 15)
{
$score = 75;
}
else if ($len <= 18)
{
$score = 80;
}
else if ($len <= 20)
{
$score = 90;
}
else
{
$score = 100;
}
$this->password_info['details']['length_score'] = $score;
}
private function calculate_entropy() private function get_score_info($score) {
{ if ($score <= 15) {
$score = 0; $score_info = 'Very Bad';
$password = $this->password; } elseif ($score <= 35) {
$length = $this->password_length; $score_info = 'Bad';
} elseif ($score <= 45) {
foreach (count_chars($password, 1) as $v) $score_info = 'Medium - Bad';
{ } elseif ($score <= 55) {
$p = $v / $length; $score_info = 'Medium';
$score -= $p * log($p)/log(2); } elseif ($score <= 65) {
} $score_info = 'Medium - Good';
$this->password_info['details']['entropy_per_character'] = round($score, $this->score_precision); } elseif ($score <= 75) {
$this->password_info['details']['entropy_score'] = round(($score * $length), $this->score_precision); $score_info = 'Good';
} } elseif ($score <= 90) {
$score_info = 'Very Good';
private function get_score_info($score) } else {
{ $score_info = 'Excellent';
if ($score <= 15) }
{ return $score_info;
$score_info = 'Very Bad'; }
}
else if ($score <= 35)
{
$score_info = 'Bad';
}
else if ($score <= 45)
{
$score_info = 'Medium - Bad';
}
else if ($score <= 55)
{
$score_info = 'Medium';
}
else if ($score <= 65)
{
$score_info = 'Medium - Good';
}
else if ($score <= 75)
{
$score_info = 'Good';
}
else if ($score <= 90)
{
$score_info = 'Very Good';
}
else
{
$score_info = 'Excellent';
}
return $score_info;
}
} }
?> ?>