CISSP For Dummies

A remote access control protocol that implements various authentication mechanisms including MD5, S/Key, generic token cards, and digital certificates. Often used in wireless networks.

One of four operating modes for DES (see also CBC, CFB, DES, and OFB). Operates on 64-bit blocks of plaintext independently and produces 64-bit blocks of ciphertext. The native mode for DES operation. See also DES.

Divides a secret key into two parts and places those two parts into escrow with two separate, trusted organizations. Published by NIST in FIPS PUB 185 (1994). See also NIST.

Electrical noise generated by the different charges between the three electrical wires (hot, neutral, and ground) and can be common-mode noise (caused by hot and ground) or traverse-mode noise (caused by hot and neutral).

The process of transforming plaintext into ciphertext.

Packets are encrypted once at the original encryption source and then decrypted only at the final decryption destination.

Luring someone toward certain evidence after that individual has already committed a crime.

Encouraging someone to commit a crime that the individual may have had no intention of committing.

In IPSec, provides confidentiality (encryption) and limited authentication. See also IPSec.

The practice of spying or using spies to obtain proprietary or confidential information.

A common bus-topology network transport protocol.

Professional principles and duties that guide decisions and behavior.

The various phases of evidence from its initial discovery to its final disposition. The evidence life cycle has the following five stages: collection and identification; analysis; storage, preservation, and transportation; presentation in court; and return to victim (owner).

If probable cause exists and the destruction of evidence is imminent, property or persons may be searched and/or evidence may be seized without a search warrant.

A type of artificial intelligence system based on an inference engine and knowledge base.

An intranet that has been extended to include external parties such as customers, partners, and suppliers. See also Intranet.