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 Data Asset – 1. Any entity that is comprised of data. For example, a database is a data asset that is comprised of data records. A data asset may be a system or application output file, database, document, or Web page. A data asset also includes a service that may be provided to access data from an application. For example, a service that returns individual records from a database would be a data asset. Similarly, a Web site that returns data in response to specific queries (e.g., www.weather.com) would be a data asset. 2. An information-based resource. SOURCE: CNSSI-4009 Data Element – A basic unit of information that has a unique meaning and subcategories (data items) of distinct value. Examples of data elements include gender, race, and geographic location. Data Encryption Algorithm (DEA) – Data Encryption Standard (DES) – SOURCE: SP 800-47; CNSSI-4009 The cryptographic engine that is used by the Triple Data Encryption Algorithm (TDEA). SOURCE: SP 800-67 Cryptographic algorithm designed for the protection of unclassified data and published by the National Institute of Standards and Technology (NIST) in Federal Information Processing Standard (FIPS) Publication 46. (FIPS 46-3 withdrawn 19 May 2005) See Triple DES. SOURCE: CNSSI-4009 Data Flow Control – Synonymous with information flow control. SOURCE: CNSSI-4009 Data Integrity – The property that data has not been altered in an unauthorized manner. Data integrity covers data in storage, during processing, and while in transit. SOURCE: SP 800-27 The property that data has not been changed, destroyed, or lost in an unauthorized or accidental manner. SOURCE: CNSSI-4009 Data Origin Authentication – The process of verifying that the source of the data is as claimed and that the data has not been modified. SOURCE: CNSSI-4009 Pg 58
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Data Security – Protection of data from unauthorized (accidental or intentional) modification, destruction, or disclosure. SOURCE: CNSSI-4009 Data Transfer Device (DTD) – Fill device designed to securely store, transport, and transfer electronically both COMSEC and TRANSEC key, designed to be backward compatible with the previous generation of COMSEC common fill devices, and programmable to support modern mission systems. SOURCE: CNSSI-4009 Decertification – Revocation of the certification of an information system item or equipment for cause. SOURCE: CNSSI-4009 Decipher – Convert enciphered text to plain text by means of a cryptographic system. SOURCE: CNSSI-4009 Decode – Convert encoded text to plain text by means of a code. SOURCE: CNSSI-4009 Decrypt – Generic term encompassing decode and decipher. SOURCE: CNSSI-4009 Decryption – The process of transforming ciphertext into plaintext. SOURCE: SP 800-67 Decryption – The process of changing ciphertext into plaintext using a cryptographic algorithm and key. SOURCE: SP 800-21 Decryption – Conversion of ciphertext to plaintext through the use of a cryptographic algorithm. SOURCE: FIPS 185 Pg 59
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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