Date Published: November 26, 2001; Updated May 9, 2023
Supersedes:
FIPS 197 (11/26/2001)
Planning Note (05/09/2023):
This release updates the original publication of FIPS 197 (2001), but makes no technical changes to the algorithm specified in the standard.
However, this update includes extensive editorial improvements, including the following:
- The front matter is modernized (e.g., a foreword and abstract are added).
- Terms and symbols are defined more comprehensively and consistently.
- Formatting/typesetting is improved in a variety of ways.
- Unnecessary formalism is removed.
- Diagrams for the three key schedules are included. Some references were updated, and additional references are provided.
See the announcement of this update for more details about the FIPS 197 review process.
Author(s)
National Institute of Standards and Technology
In 2000, NIST announced the selection of the Rijndael block cipher family as the winner of the Advanced Encryption Standard (AES) competition. Block ciphers are the foundation for many cryptographic services, especially those that provide assurance of the confidentiality of data.
Three members of the Rijndael family are specified in this Standard: AES-128, AES-192, and AES-256. Each of them transforms data in blocks of 128 bits, and the numerical suffix indicates the bit length of the associated cryptographic keys.
In 2000, NIST announced the selection of the Rijndael block cipher family as the winner of the Advanced Encryption Standard (AES) competition. Block ciphers are the foundation for many cryptographic services, especially those that provide assurance of the confidentiality of data. Three members of...
See full abstract
In 2000, NIST announced the selection of the Rijndael block cipher family as the winner of the Advanced Encryption Standard (AES) competition. Block ciphers are the foundation for many cryptographic services, especially those that provide assurance of the confidentiality of data.
Three members of the Rijndael family are specified in this Standard: AES-128, AES-192, and AES-256. Each of them transforms data in blocks of 128 bits, and the numerical suffix indicates the bit length of the associated cryptographic keys.
Hide full abstract
Keywords
AES; block cipher; confidentiality; cryptography; encryption; Rijndael
Control Families
None selected
) or https:// don't prove our archive is authentic, only that you securely accessed it. Note that we are working to fix that :)
