HP Access Control Client Software manual Appendix a Glossary

Appendix A: Glossary

certificate An electronic document that contains a public key and is digitally signed by a third-party issuer such as a CA. Digital certificates are used for network authentication. They contain the certificate holder’s name or other identifying information, a serial number, the expiration date, and a copy of the certificate holder’s public key, which validates data signed by the corresponding private key.

certificate See CA. authority

Challenge See CHAP.

Handshake

Authentication

Protocol

CHAP Challenge Handshake Authentication Protocol. An authentication protocol that is supported by PPP and also incorporated in RADIUS. With CHAP, the authenticator sends the client a “challenge” text. The client creates a hash value from its pre-shared password and the text. The authenticator also creates a hash value from the same text. The authenticator compares the hash values. If they match, authentication succeeds and the link is established. For more information, see RFC 2759 at http://www.ietf.org/rfc/rfc2759.txt.

cluster See enforcement cluster.

combination See CS. server

credentials A username and its corresponding password.

CS Combination Server. A NAC 800 that functions as both an ES and an MS and acts as a stand-alone device.

D

data store The location where an endpoint’s credentials are stored. Possible data stores are: a local database of users, a Windows domain controller that runs Active Directory, an LDAP server such as OpenLDAP or Novell eDirectory, or another RADIUS server (accessed via proxy requests).

deployment Sometimes called “deployment option,” the way in which the NAC 800 is method connected to the LAN relative to other components such as routers, switches,

DHCP servers, and the Internet. The deployment method is determined by the quarantine method and the access method that the network will employ. The NAC 800 supports three deployment methods: 802.1X deployment, inline deploy- ment, and DHCP deployment.

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