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 Online Attack – An attack against an authentication protocol where the attacker either assumes the role of a claimant with a genuine verifier or actively alters the authentication channel. The goal of the attack may be to gain authenticated access or learn authentication secrets. Online Certificate Status Protocol (OCSP) – SOURCE: SP 800-63 An online protocol used to determine the status of a public key certificate. SOURCE: SP 800-63; FIPS 201 Online Cryptosystem – Cryptographic system in which encryption and decryption are performed in association with the transmitting and receiving functions. SOURCE: CNSSI-4009 One-part Code – Code in which plain text elements and their accompanying code groups are arranged in alphabetical, numerical, or other systematic order, so one listing serves for both encoding and decoding. One-part codes are normally small codes used to pass small volumes of lowsensitivity information. SOURCE: CNSSI-4009 One-time Cryptosystem – Cryptosystem employing key used only once. SOURCE: CNSSI-4009 One-time Pad – Manual one-time cryptosystem produced in pad form. SOURCE: CNSSI-4009 One-time Tape – Punched paper tape used to provide key streams on a one-time basis in certain machine cryptosystems. SOURCE: CNSSI-4009 One-Way Hash Algorithm – Hash algorithms which map arbitrarily long inputs into a fixed-size output such that it is very difficult (computationally infeasible) to find two different hash inputs that produce the same output. Such algorithms are an essential part of the process of producing fixed-size digital signatures that can both authenticate the signer and provide for data integrity checking (detection of input modification after signature). SOURCE: SP 800-49; CNSSI-4009 Pg 130
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Open Storage – Any storage of classified national security information outside of approved containers. This includes classified information that is resident on information systems media and outside of an approved storage container, regardless of whether or not that media is in use (i.e., unattended operations). SOURCE: CNSSI-4009 Operating System (OS) Fingerprinting – Operational Controls – Operational Key – Operational Vulnerability Information – Analyzing characteristics of packets sent by a target, such as packet headers or listening ports, to identify the operating system in use on the target. SOURCE: SP 800-115 The security controls (i.e., safeguards or countermeasures) for an information system that primarily are implemented and executed by people (as opposed to systems). SOURCE: SP 800-53; SP 800-37; FIPS 200 The security controls (i.e., safeguards or countermeasures) for an information system that are primarily implemented and executed by people (as opposed to systems). SOURCE: CNSSI-4009; SP 800-53A Key intended for use over-the-air for protection of operational information or for the production or secure electrical transmission of key streams. SOURCE: CNSSI-4009 Information that describes the presence of an information vulnerability within a specific operational setting or network. SOURCE: CNSSI-4009 Operational Waiver – Authority for continued use of unmodified COMSEC end-items pending the completion of a mandatory modification. SOURCE: CNSSI-4009 Operations Code – Code composed largely of words and phrases suitable for general communications use. SOURCE: CNSSI-4009 Pg 131
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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