Validating a password protection system graduate school dating site
If you're concerned about security you should have some policy on what constitutes a valid password.Some common restrictions are: (*) Some of these requirements have been shown to be counterproductive - leading to endless passwords of the form "Amanda1969" and should now be avoided.Leaving the last requirement for now, as it requires a server-side script, let's see what's possible using just client-side HTML and Java Script.While having a strong password is a good first step, it needs to be backed up by additional measures on the server that prevent brute-force attacks.The code presented below would then be used for letting the user change their password.Instead of as this lets the browser (and the user) know that the contents of that field need to be secured.
This code will work for browsers as far back as Netscape 4 (circa 1997). If you're not sure how to place this on your page, you might need to read the preceding article on Form Validation, or view the HTML source of this page.The code presented above is fine in that it checks everything that we wanted to check, but uses a lot of code to test each requirement individually and present different error messages.We're going to show you now how to apply the password tests using a single regular expression.The problem here is that you're making the password visible in the browser, browser cache, proxy, etc.
For security a password should never be displayed in HTML or sent by email.The password won't appear on the screen as you type and most browsers also won't retain or remember values entered in fields as they do with other form elements.