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Sean

Was just browsing around and found an Ajax login system I’m going to try implement on whatever project I have next! Whats the Pros and Con’s for using an Ajax system?

Pros:

• User does not need to refresh the page to login.
• User is notified instantly on incorrect username/password combination.
• Overall user experience is more seamless.
• Password is not sent in plain text ever (more secure than traditional system).
• Javascript convenience with server-side security (uses PHP/MySQL).
• Uses one-time use random seed to hash the password before sending (making interceptions useless).

Cons:

• System is more prone to brute force attacks.
  • Can be minimized by adding a delay after a certain number of attempts per username or per client.
• User may expect a login button.
  • One could still be added without reloading the page.
• Older versions of Safari cannot disable a password field.
• This code uses the MD5 encryption algorithm, which has since been proven to be less secure than previously thought. If you use this code, I strongly recommend you switch to a more secure encryption algorithm, such as SHA-1. For sites were security is not crucial, MD5 should suffice.

I have never used Ajax that much, those pros, and cons are taken from the scripts website which can be located here. However, it is getting more and more popular and it certainly does provide a certain “wow” factor! Either way, just thought I’d tell you about it in case anyone else is looking for one!