NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Block – Sequence of binary bits that comprise the input, output, State, and Round Key. The length of a sequence is the number of bits it contains. Blocks are also interpreted as arrays of bytes. SOURCE: FIPS 197 Block Cipher – A symmetric key cryptographic algorithm that transforms a block of information at a time using a cryptographic key. For a block cipher algorithm, the length of the input block is the same as the length of the output block. SOURCE: SP 800-90 Block Cipher Algorithm – A family of functions and their inverses that is parameterized by a cryptographic key; the function maps bit strings of a fixed length to bit strings of the same length. SOURCE: SP 800-67 Blue Team – 1. The group responsible for defending an enterprise’s use of information systems by maintaining its security posture against a group of mock attackers (i.e., the Red Team). Typically the Blue Team and its supporters must defend against real or simulated attacks 1) over a significant period of time, 2) in a representative operational context (e.g., as part of an operational exercise), and 3) according to rules established and monitored with the help of a neutral group refereeing the simulation or exercise (i.e., the White Team). 2. The term Blue Team is also used for defining a group of individuals that conduct operational network vulnerability evaluations and provide mitigation techniques to customers who have a need for an independent technical review of their network security posture. The Blue Team identifies security threats and risks in the operating environment, and in cooperation with the customer, analyzes the network environment and its current state of security readiness. Based on the Blue Team findings and expertise, they provide recommendations that integrate into an overall community security solution to increase the customer's cyber security readiness posture. Often times a Blue Team is employed by itself or prior to a Red Team employment to ensure that the customer's networks are as secure as possible before having the Red Team test the systems. SOURCE: CNSSI-4009 Pg 22
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Body of Evidence (BoE) – The set of data that documents the information system’s adherence to the security controls applied. The BoE will include a Requirements Verification Traceability Matrix (RVTM) delineating where the selected security controls are met and evidence to that fact can be found. The BoE content required by an Authorizing Official will be adjusted according to the impact levels selected. SOURCE: CNSSI-4009 Boot Sector Virus – A virus that plants itself in a system’s boot sector and infects the master boot record. SOURCE: SP 800-61 Boundary – Physical or logical perimeter of a system. SOURCE: CNSSI-4009 Boundary Protection – Monitoring and control of communications at the external boundary of an information system to prevent and detect malicious and other unauthorized communication, through the use of boundary protection devices (e.g., proxies, gateways, routers, firewalls, guards, encrypted tunnels). SOURCE: SP 800-53; CNSSI-4009 Boundary Protection Device – A device with appropriate mechanisms that: (i) facilitates the adjudication of different interconnected system security policies (e.g., controlling the flow of information into or out of an interconnected system); and/or (ii) provides information system boundary protection. SOURCE: SP 800-53 A device with appropriate mechanisms that facilitates the adjudication of different security policies for interconnected systems. SOURCE: CNSSI-4009 Browsing – Act of searching through information system storage or active content to locate or acquire information, without necessarily knowing the existence or format of information being sought. SOURCE: CNSSI-4009 Brute Force Password Attack – A method of accessing an obstructed device through attempting multiple combinations of numeric and/or alphanumeric passwords. SOURCE: SP 800-72 Pg 23
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NIST IR 7298, Glossary of Key Infor
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