Audit Information systems & IT Security
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Audit Information systems & and IT Security

Information System audit and IT Security

Definitions and Terminology

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Data Encryption Standard


(DES) a well-known symmetric encryption mechanism using a 56 bit key. Due to its short key length DES was replaced by the AES, but is still used in multiple encryption mode, e.g., 3DES or Triple DES (FIPS 46-3).

source: ISO/IEC18028-4, 2005


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