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 Non-Repudiation – Is the security service by which the entities involved in a communication cannot deny having participated. Specifically, the sending entity cannot deny having sent a message (non-repudiation with proof of origin), and the receiving entity cannot deny having received a message (non-repudiation with proof of delivery). SOURCE: FIPS 191 A service that is used to provide assurance of the integrity and origin of data in such a way that the integrity and origin can be verified and validated by a third party as having originated from a specific entity in possession of the private key (i.e., the signatory). SOURCE: FIPS 186 Nonce – A value used in security protocols that is never repeated with the same key. For example, challenges used in challenge-response authentication protocols generally must not be repeated until authentication keys are changed, or there is a possibility of a replay attack. Using a nonce as a challenge is a different requirement than a random challenge, because a nonce is not necessarily unpredictable. SOURCE: SP 800-63 A random or non-repeating value that is included in data exchanged by a protocol, usually for the purpose of guaranteeing the transmittal of live data rather than replayed data, thus detecting and protecting against replay attacks. SOURCE: CNSSI-4009 NSA-Approved Cryptography – Cryptography that consists of: (i) an approved algorithm; (ii) an implementation that has been approved for the protection of classified information in a particular environment; and (iii) a supporting key management infrastructure. SOURCE: SP 800-53 Null – Dummy letter, letter symbol, or code group inserted into an encrypted message to delay or prevent its decryption or to complete encrypted groups for transmission or transmission security purposes. SOURCE: CNSSI-4009 Object – A passive entity that contains or receives information. SOURCE: SP 800-27 Passive information system-related entity (e.g., devices, files, records, tables, processes, programs, domains) containing or receiving information. Access to an object implies access to the information it contains. SOURCE: CNSSI-4009 Pg 128
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Passive information system-related entity (e.g., devices, files, records, tables, processes, programs, domains) containing or receiving information. Access to an object (by a subject) implies access to the information it contains. See Subject. SOURCE: SP 800-53 Object Identifier – A specialized formatted number that is registered with an internationally recognized standards organization. The unique alphanumeric/numeric identifier registered under the ISO registration standard to reference a specific object or object class. In the federal government PKI, they are used to uniquely identify each of the four policies and cryptographic algorithms supported. SOURCE: SP 800-32 Object Reuse – Reassignment and reuse of a storage medium containing one or more objects after ensuring no residual data remains on the storage medium. SOURCE: CNSSI-4009 Off-Card – Refers to data that is not stored within the PIV card or computation that is not done by the Integrated Circuit Chip (ICC) of the PIV card. SOURCE: FIPS 201 Off-line Attack – An attack where the attacker obtains some data (typically by eavesdropping on an authentication protocol run, or by penetrating a system and stealing security files) that he/she is able to analyze in a system of his/her own choosing. SOURCE: SP 800-63 Off-line Cryptosystem – Cryptographic system in which encryption and decryption are performed independently of the transmission and reception functions. SOURCE: CNSSI-4009 Official Information – All information in the custody and control of a U.S. government department or agency that was acquired by U.S. government employees as a part of their official duties or because of their official status and has not been cleared for public release. SOURCE: CNSSI-4009 On-Card – Refers to data that is stored within the PIV card or computation that is done by the ICC of the PIV card. SOURCE: FIPS 201 Pg 129
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NIST IR 7298, Glossary of Key Infor
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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