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Chapter 6 Terms

bridge trust model A trust model with one CA that acts as a facilitator to interconnect all other CAs.
Certificate Authority (CA) A trusted third-party agency that is responsible for issuing digital certificates.
Certificate Repository (CR) A publicly accessible centralized directory of digital certificates that can be used to view the status of a digital certificate.
Certificate Revocation List (CRL) A repository that lists revoked digital certificates.
Certificate Signing Request (CSR) A specially formatted encrypted message that validates the information the CA requires to issue a digital certificate.
cipher suite A named combination of the encryption, authentication, and message authentication code (MAC) algorithms that are used with SSL and TLS.
digital certificate A technology used to associate a user's identity to a public key, in which the user's public key is digitally signed by a trusted third party.
direct trust A type of trust model in which a relationship exists between two individuals because one person knows the other person.
hierarchical trust model A trust model that has a single hierarchy with one master CA.
HTTPS A secure version of HTTP sent over SSL or TLS.
Internet Protocol Security (IPsec) A set of protocols developed to support the secure exchange of packets between hosts and networks.
key escrow A process in which keys are managed by a third party, such as a trusted CA.
key recovery agent (KRA) A highly trusted person responsible for recovering lost or damaged digital certificates.
Online Certificate Status Protocol (OCSP) A protocol that performs a real-time lookup of a certificate's status.
public key infrastructure (PKI) A framework for managing all of the entities involved in creating, storing, distributing, and revoking digital certificates.
Registration Authority (RA) A subordinate entity designed to handle specific CA tasks such a s processing certificate requests and authenticating users.
Secure Shell (SSH) A Linux/UNIX-based command interface and protocol for securely accessing a remote computer.
Secure Sockets Layer (SSL) A protocol originally developed by Netscape for securely transmitting data.
session keys Symmetric keys to encrypt and decrypt information exchanged during a handshake session between a web browser and web server.
third-party trust A trust model in which two individuals trust each other because each individually trusts a third party.
Transport Layer Security (TLS) A protocol that is more secure than SSL and guarantees privacy and data integrity between applications.
trust model the type of trust relationship that can exist between individuals or entities.
Created by: bnash52