NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

NIST IR 7298 Revision 1, Glossary of Key Information Security Terms
Public Seed – A starting value for a pseudorandom number generator. The value
produced by the random number generator may be made public. The
public seed is often called a “salt.”
SOURCE: CNSSI-4009
Purge – Rendering sanitized data unrecoverable by laboratory attack methods.
SOURCE: SP 800-88; CNSSI-4009
Quadrant – Short name referring to technology that provides tamper-resistant
protection to cryptographic equipment.
SOURCE: CNSSI-4009
Quality of Service – The measurable end-to-end performance properties of a network
service, which can be guaranteed in advance by a Service-Level
Agreement between a user and a service provider, so as to satisfy
specific customer application requirements. Note: These properties
may include throughput (bandwidth), transit delay (latency), error
rates, priority, security, packet loss, packet jitter, etc.
SOURCE: CNSSI-4009
Quarantine – Store files containing malware in isolation for future disinfection or
examination.
SOURCE: SP 800-69
Radio Frequency Identification –
(RFID)
Random Number Generator –
(RNG)
Random Number Generator –
(RNG)
A form of automatic identification and data capture (AIDC) that uses
electric or magnetic fields at radio frequencies to transmit
information.
SOURCE: SP 800-98
A process used to generate an unpredictable series of numbers. Each
individual value is called random if each of the values in the total
population of values has an equal probability of being selected.
SOURCE: SP 800-57; CNSSI-4009
Random Number Generators (RNGs) used for cryptographic
applications typically produce a sequence of zero and one bits that
may be combined into sub-sequences or blocks of random numbers.
There are two basic classes: deterministic and nondeterministic. A
deterministic RNG consists of an algorithm that produces a sequence
of bits from an initial value called a seed. A nondeterministic RNG
produces output that is dependent on some unpredictable physical
source that is outside human control.
SOURCE: FIPS 140-2
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