Advanced Encryption Standard (AES)

Published: November 26, 2001


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


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:
Pub Type: NIST Pubs


algorithm, block cipher, ciphertext, cryptographic algorithm, cryptographic keys, decryption, encryption
Created November 26, 2001, Updated November 14, 2018