U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

PUBLICATIONS

Advanced Encryption Standard (AES)

Published

Author(s)

Morris J. Dworkin, Elaine B. Barker, James R. Nechvatal, James Foti, Lawrence E. Bassham, E. Roback, James F. Dray Jr.

Abstract

The Advanced Encryption Standard (AES) specifies a FIPS-approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. Encryption converts data to an unintelligible form called ciphertext; decrypting the ciphertext converts the data back into its original form, called plaintext. The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt and decrypt data in blocks of 128 bits.
Citation
Federal Inf. Process. Stds. (NIST FIPS) - 197
Report Number
197
NIST Pub Series
Federal Inf. Process. Stds. (NIST FIPS)
Pub Type
NIST Pubs

Download Paper

DOI Link

Keywords

algorithm, block cipher, ciphertext, cryptographic algorithm, cryptographic keys, decryption, encryption
Federal information standards (FIPS)
Created November 25, 2001, Updated August 17, 2020