Making RADIUS More Secure As we’ve previously discussed, there are several insecure elements in RADIUS. We are currently working in the IETF (Internet Engineering Task Force) to close those gaps and improve security for everyo... Network Security Protocols
How to customize an OEM instance of FreeRADIUS As the most popular RADIUS server in the world, FreeRADIUS is used by many hardware vendors. They ship their products with FreeRADIUS as an embedded or “OEM” product. It is common for them to need som... Network Security Protocols
RADIUS protocol and password compatibility In order for RADIUS authentication to work, user passwords need to be stored in a format that is understood by the authentication protocol used by the client. Unfortunately, not all protocols work wit... Network Security Best Practices Network Security Protocols
How authentication protocols work Choosing an authentication protocol is one of the most important decisions when designing a RADIUS ecosystem. There are a variety of authentication protocols to choose from, each with their own set of... Network Security Protocols
PAP vs CHAP. Is PAP less secure? One of the most common questions about RADIUS security asks “Is PAP secure?” The usual answer is “no”, which is (in our opinion) seriously misleading. A better answer is “Here’s a comparison of PAP an... Network Security Best Practices Network Security Protocols
Is PAP secure? A common misconception is that PAP is less secure than other authentication protocols such as CHAP, MS-CHAP, or EAP-MSCHAP(v2). This perception arises because of a misunderstanding of how PAP is actua... Network Security Best Practices Network Security Protocols
MS-CHAP is dead While MS-CHAP has been used since 1998, it uses DES encryption which was deprecated in 2002. Attacks on MS-CHAP itself have been known since 2006, and those attacks have only gotten better over time. ... Network Security Best Practices Network Security Protocols
How a RADIUS server works A RADIUS server utilizes a central database to authenticate remote users. RADIUS functions as a client-server protocol, authenticating each user with a unique encryption key when access is granted. Ho... Network Security Protocols