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IT296 - Chapter 06
IT296 - Chapter 06 (Security+)
23
Computer Science
Undergraduate 2
04/23/2016

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