Web Application Authentication Methods

 

Web Application Authentication Methods

As a business, you rely on web applications to power your operations. While you may have a variety of authentication methods in place for your employees, you need to make sure that the same is true for your web applications. In this piece, Rizwan Ahmed CPA discusses different types of web application authentication methods and discusses the benefits and drawbacks of each.

List of Web Application Authentication Methods

There are many web application authentication methods in existence today. The most popular ones, as per Rizwan Ahmed CPA, include Basic Auth, Digest Auth, and NTLM. Each of these has its own strengths and weaknesses, so it’s important to understand how each works before choosing one for your application.

With Basic Auth, the user’s credentials are sent over the network with each request. The credentials are encoded using a scheme called Base64, which is a way of representing binary data in an ASCII string format.

The encoding is not secure, so the credentials should only be used over an encrypted connection such as HTTPS.

Basic Auth is often used in combination with other authentication methods, such as cookies or session IDs.

Basic Auth is supported by all major web browsers.

Digest authentication is a challenge-response mechanism for authenticating users in a web application. The server sends a challenge to the client, which the client then responds to with a username and password. If the credentials are valid, the server allows the client access to the requested resource.

Digest authentication is more secure than Basic authentication because it does not send the password in clear text. In addition, Digest authentication can be used in conjunction with SSL/TLS to provide even more security.

Windows NT LAN Manager (NTLM) is a Microsoft Windows authentication protocol that provides challenge-response authentication and message integrity verification. 

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