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 Cipher Block Chaining-Message Authentication Code – (CBC-MAC) A secret-key block-cipher algorithm used to encrypt data and to generate a Message Authentication Code (MAC) to provide assurance that the payload and the associated data are authentic. SOURCE: SP 800-38C Cipher Suite – Negotiated algorithm identifiers. Cipher suites are identified in human-readable form using a pneumonic code. SOURCE: SP 800-52 Cipher Text Auto-Key (CTAK) – Cryptographic logic that uses previous cipher text to generate a key stream. SOURCE: CNSSI-4009 Ciphertext – Data output from the Cipher or input to the Inverse Cipher. SOURCE: FIPS 197 Data in its enciphered form. SOURCE: SP 800-56B Ciphertext/Cipher Text – Data in its encrypted form. SOURCE: SP 800-21; SP 800-57; CNSSI-4009 Ciphony – Process of enciphering audio information, resulting in encrypted speech. SOURCE: CNSSI-4009 Claimant – A party whose identity is to be verified using an authentication protocol. SOURCE: SP 800-63; FIPS 201 Claimant – An entity which is or represents a principal for the purposes of authentication, together with the functions involved in an authentication exchange on behalf of that entity. A claimant acting on behalf of a principal must include the functions necessary for engaging in an authentication exchange. (e.g., a smartcard [claimant] can act on behalf of a human user [principal]) SOURCE: FIPS 196 An entity (user, device or process) whose assertion is to be verified using an authentication protocol. SOURCE: CNSSI-4009 Pg 32
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Classified Information – Information that has been determined pursuant to Executive Order (E.O.) 13292 or any predecessor order to require protection against unauthorized disclosure and is marked to indicate its classified status when in documentary form. SOURCE: SP 800-60; E.O. 13292 See classified national security information. SOURCE: CNSSI-4009 Information that has been determined: (i) pursuant to Executive Order 12958 as amended by Executive Order 13292, or any predecessor Order, to be classified national security information; or (ii) pursuant to the Atomic Energy Act of 1954, as amended, to be Restricted Data (RD). SOURCE: SP 800-53 Classified Information Spillage – Security incident that occurs whenever classified data is spilled either onto an unclassified information system or to an information system with a lower level of classification. SOURCE: CNSSI-4009 Classified National Security Information – Information that has been determined pursuant to Executive Order 13526 or any predecessor order to require protection against unauthorized disclosure and is marked to indicate its classified status when in documentary form. SOURCE: CNSSI-4009 Clear – To use software or hardware products to overwrite storage space on the media with nonsensitive data. This process may include overwriting not only the logical storage location of a file(s) (e.g., file allocation table) but also may include all addressable locations. See comments on clear/purge convergence. SOURCE: SP 800-88 Clear Text – Information that is not encrypted. SOURCE: SP 800-82 Clearance – Formal certification of authorization to have access to classified information other than that protected in a special access program (including SCI). Clearances are of three types: confidential, secret, and top secret. A top secret clearance permits access to top secret, secret, and confidential material; a secret clearance, to secret and confidential material; and a confidential clearance, to confidential material. SOURCE: CNSSI-4009 Pg 33
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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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