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Cryptographic Protection for the Twenty-First Century



Elaine B. Barker


In 2000, the National Institute of Standards and Technology (NIST) announced the selection of a new encryption algorithm that will be used to protect sensitive (unclassified) government information. This algorithm, to be proposed as the Advanced Encryption Standard (AES), is the result of work conducted by NIST and the international cryptographic community since 1997. The AES is intended to replace the Data Encryption Standard (DES) that was adopted in 1977 and is now considered to be inadequate to protect today's information. However, the AES will not be used alone, but as part of a cryptographic standards toolkit of algorithms and protocols to provide security for various applications and environments.
Electronic Publication
No. 5


advanced encryption standard, AES, authentication, cryptography, digital signatures, encryption, hashing algorithm, key management, modes of operation


Barker, E. (2001), Cryptographic Protection for the Twenty-First Century, Electronic Publication, [online],, internal:/None (Accessed July 18, 2024)


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Created March 1, 2001, Updated February 17, 2017