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Report on the Development of the Advanced Encryption Standard (AES).

J Nechvatal1, E Barker1, L Bassham1

  • 1National Institute of Standards and Technology, Gaithersburg, MD 20899-8930.

Journal of Research of the National Institute of Standards and Technology
|August 9, 2016
PubMed
Summary
This summary is machine-generated.

The National Institute of Standards and Technology (NIST) selected Rijndael as the Advanced Encryption Standard (AES) after evaluating 15 symmetric-key encryption algorithms. This decision followed extensive public analysis of security and efficiency characteristics.

Keywords:
Advanced Encryption Standard (AES)Rijndaelcryptanalysiscryptographic algorithmscryptographyencryption

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Area of Science:

  • Cryptography
  • Computer Science
  • Information Security

Background:

  • The National Institute of Standards and Technology (NIST) initiated a search for a new symmetric-key encryption algorithm in 1997.
  • This initiative aimed to protect sensitive Federal information.

Purpose of the Study:

  • To document the research results and rationale behind the selection of a new Advanced Encryption Standard (AES).
  • To identify a secure and efficient symmetric-key encryption algorithm for widespread use.

Main Methods:

  • NIST accepted 15 candidate algorithms for analysis in 1998.
  • The cryptographic research community was invited to analyze the security and efficiency of these candidates.
  • NIST reviewed public analyses and selected finalists before proposing Rijndael as the AES.

Main Results:

  • Fifteen candidate algorithms were initially accepted.
  • MARS, RC™, Rijndael, Serpent, and Twofish were selected as finalists.
  • Rijndael was proposed as the Advanced Encryption Standard (AES) based on comprehensive evaluation.

Conclusions:

  • Rijndael demonstrated superior security and efficiency characteristics compared to other finalists.
  • The selection process involved rigorous public scrutiny and analysis by the cryptographic community.
  • The proposed Rijndael algorithm is poised to become the new standard for symmetric-key encryption.