Monday, May 11, 2009

Check password strength in javascipt

function passwordStrength(password)

{

var desc = new Array();

desc[0] = "Very Weak";

desc[1] = "Weak";

desc[2] = "Better";

desc[3] = "Medium";

desc[4] = "Strong";

desc[5] = "Strongest";



var score = 0;



//if password bigger than 6 give 1 point

if (password.length > 6) score++;



//if password has both lower and uppercase characters give 1 point

if ( ( password.match(/[a-z]/) ) && ( password.match(/[A-Z]/) ) ) score++;



//if password has at least one number give 1 point

if (password.match(/\d+/)) score++;



//if password has at least one special caracther give 1 point

if ( password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/) ) score++;



//if password bigger than 12 give another 1 point

if (password.length > 12) score++;



document.getElementById("passwordDescription").innerHTML = desc[score];

document.getElementById("passwordStrength").className = "strength" + score;

}



Password strength metter













































Password not entered












No comments:

Post a Comment

 
Locations of visitors to this page