A root certificate is nothing more than a specific area contained in all types of digital certificates. The information contained within the root is responsible for calling for and processing authentication procedures. Whenever you create a new digital certificate, the root relies upon the kind of authentication you want to use. For example, if you want the certificate to be authenticated directly with your certificate authority (CA) system, then the root is created so it is directed to connect with the CA system. On the other hand, if you want the certificate to rely upon an internal certificate with a private key, then the root is directed to authenticate against that certificate instead of your CA system, as is common when you are using digital signatures.
Problems with the Root Certificate Could Cause Issues with Authentication
In situations where a user is having problems obtaining authentication, you need to determine whether the problem is localized or affecting a larger group of users. Once you make this determination, you are able to start to develope troubleshooting techniques. One possible cause for authentication problems could be the user’s root certificate. The root contains all of the information used during authentication processes. If there is a problem with the root, then the user will not be able to have their certificate authenticated. Another cause to consider is the expiration of the certificate. You should also consider the version of the certificate. If the certificate expired, or is a different version than is currently being used, you have to issue the user a new one, because their existing certificate is no longer valid.