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CIT292 Chapter 13

CIT292 Network Security - Terms for Chapter 13

TermDefinition
Public Key Infrastructure an entire system of hardware and software, policies, procedures, people, used to create, distribute, manage, store, and revoke digital certificates
Certificates Digitally signed electronic documents that bind a public key with a user identity
Certificate authority The entity (usually a server) that issues digital certificates to users
One-to-one mapping Individual certificate is mapped to single recipient
Many – to-one mapping Multiple certificates are mapped to one recipient
Certificate revocation list CRL A list of certificates no longer valid or that have been revoked by the issuer
X.509 Common PKI standard developed by ITU-T that incorporates the single sign-on authentication method
Key escrow When certificate keys are held in case third parties, such as government or other organizations, need access to encrypted communications
Web of trust A decentralized model used for sharing certificates without the need for a centralized CA
S/MIME IETF standard that provides cryptographic security for electronic messaging such as email
Secure Sockets Layer A cryptographic protocol that provides secure Internet communications such as web browsing, email, and VOIP
Transport Layer Security The successor to SSL. Provides secure Internet communications. Shown in browser as HTTPS
Secure Shell A protocol that can create a secure channel between two computers or network devices
Point-to-Point Tunneling Protocol A tunneling protocol used to support VPNs. Includes security mechanisms, and no additional software or protocols are needed. Uses port 1723.
Layer 2 Tunneling Protocol A tunneling protocol used to connect virtual private networks. It does not include the confidentiality or encryption on its own. Uses port 1701 and more secure if used with IPSec.
Internet Protocol Security TCP/IP protocol that authenticates and encrypts IP packets, effectively securing communications between computers and devices using the protocol
Created by: Leisac