A Chief Security Officer wants to change user authentication to the company wireless network. The authentication must use the LDAP database and must be centrally managed. Which of the following will help fulfill this requirement?

SAML (Security Assertion Markup Language) is primarily used for single sign-on (SSO) and federated identity management rather than direct network access authentication. While it can facilitate user identity verification across services, it does not directly manage authentication processes for wireless networks using LDAP.

TACACS+ (Terminal Access Controller Access-Control System Plus) is a protocol used for network device authentication, authorization, and accounting. Although it supports centralized management, it does not inherently utilize LDAP for user authentication, which is a requirement specified in the question.

OAUTH is an authorization framework that allows third-party applications to obtain limited access to user accounts without exposing credentials. It is not designed for user authentication to networks and cannot directly connect to LDAP for managing credentials, making it unsuitable for the specified requirement.