FAQ for the Login & Password Sample

By John Peterson

Both the username and password are case-sensitive. How can I change it so they are not?

Let me start by saying that I recommend that you use case-sensitive usernames and passwords. Case-sensitivity adds an additional level of complexity and can make it harder for unauthorized users to guess a user's credentials. That being said, if you must make your usernames and/or passwords case-insensitive, it's actually quite easy to do.

All you need to do is convert both the entered value and the stored value to the same case before you compare them. I usually use LCase to make them both lower case, but using UCase to make them upper case works exactly the same way.

As an example, here's the original line from the classic ASP version of the sample.

If Request.Form("login") = "Guest" AND Request.Form("password") = "Guest" Then

By simply adding a few calls to LCase, the code below totally ignores the cases of the characters entered.

If LCase(Request.Form("login")) = LCase("Guest") AND LCase(Request.Form("password")) = LCase("Guest") Then

If you're going to do this, I recommend you only switch to the case-insensitive values in the comparison code and not in the code that retrieves or stores the values. Storing the username and password exactly as the user entered them allows you to easily move to a case-sensitive routine at some future date should the need arise.

How do I protect a large number of files?

If you're trying to protect multiple files based on the same criteria, the best way to do it is to create one protection script and include it in all the files by using a server side include. If you include it into each file you want to protect, then any changes you make to it will automatically go into effect for all the files. It makes managing things much easier.

How do I secure files that are not .asp?

This sample was designed to work with .asp files. If you need to secure other types of files you should look into using NT permissions or a third party component.

Was your question not answered above?

Please note: This form is only for submitting questions about the sample for us to consider including in the FAQ. If we feel the question merits inclusion, we will include it along with a reply. We will not respond to your email individually.



About the Author

From ASP101

Articles originally posted on ASP101.com

Comments

  • There are no comments yet. Be the first to comment!

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: August 14, 2014 @ 2:00 p.m. ET / 11:00 a.m. PT Data protection has long been considered "overhead" by many organizations in the past, many chalking it up to an insurance policy or an extended warranty you may never use. The realities of today make data protection a must-have, as we live in a data driven society. The digital assets we create, share, and collaborate with others on must be managed and protected for many purposes. Check out this upcoming eSeminar and join eVault Chief Technology …

  • Mobile is introducing sweeping changes throughout your workplace. As a senior stakeholder driving mobile initiatives in your organization, you may be lost in a sea of technologies and claims from vendors promising rapid delivery of applications to your employees, customers, and partners. To help explain some of the topics you will need to be aware of, and to separate the must-haves from the nice-to-haves, this reference guide can help you with applying a mobile strategy in the context of application …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds