The Advanced Encryption Standard ( AES ) is a specification for the encryption of electronic data established by the U. S. National Institute of Standards and Technology ( NIST ) in 2002.

AES has been adopted by the U. S. government and is now used worldwide.

The algorithm described by AES is a symmetric-key algorithm, meaning the same key is used for both encrypting and decrypting the data.

AES is included in the ISO / IEC 18033-3 standard.

AES is available in many different encryption packages, and is the first publicly accessible and open cipher approved by the National Security Agency ( NSA ) for top secret information when used in an NSA approved cryptographic module ( see Security of AES, below ).

Strictly speaking, the AES standard is a variant of Rijndael where the block size is restricted to 128 bits.

AES is a variant of Rijndael which has a fixed block size of 128 bits, and a key size of 128, 192, or 256 bits.

For AES, the first row is left unchanged.

For a 256-bit block, the first row is unchanged and the shifting for the second, third and fourth row is 1 byte, 3 bytes and 4 bytes respectively — this change only applies for the Rijndael cipher when used with a 256-bit block, as AES does not use 256-bit blocks.

This is one of the reasons why AES supports a 256-bit key length.

The arcade version of the video game hardware is often referred to as the " MVS ," or Multi Video System ( available in 1-slot, 2-slot, 4-slot, and 6-slot variations, the latter being capable of up to six cartridges loaded into one machine ), with its console counterpart referred to as the " AES ", or Advanced Entertainment System ( most likely to distinguish it from the Nintendo Entertainment System, the dominating console on the market at the time ). Neo Geo AES motherboard.

Auger electron spectroscopy ( AES ; pronounced in French ) is a common analytical technique used specifically in the study of surfaces and, more generally, in the area of materials science.

The Auger effect is an electronic process at the heart of AES resulting from the inter-and intrastate transitions of electrons in an excited atom.

The escape depth of electrons is therefore localized to within a few nanometers of the target surface, giving AES an extreme sensitivity to surface species.

A typical AES setup is shown schematically in figure 2.

Since the intensity of the Auger peaks may be small compared to the noise level of the background, AES is often run in a derivative mode which serves to highlight the peaks by modulating the electron collection current via a small applied AC voltage.

In 2012, SNK Playmore announced the release of the Neo Geo X, a handheld and home console based on the original AES.

For K-level based transitions, Auger effects are dominant for Z < 15 while for L-and M-level transitions, AES data can be measured for Z ≤ 50.

The Advanced Encryption Standard ( AES ) candidate RC6 was based on RC5.

Whirlpool is a Miyaguchi-Preneel construction based on a substantially modified Advanced Encryption Standard ( AES ).

The S-box of AES appears to be especially vulnerable to this type of analysis, as it is based on the algebraically simple inverse function.

The IEEE endorsed the final version of TKIP, along with more robust solutions such as 802. 1X and the AES based CCMP, when they published IEEE 802. 11i-2004 on 23 July 2004.

CCMP is an enhanced data cryptographic encapsulation mechanism designed for data confidentiality and based upon the Counter Mode with CBC-MAC ( CCM ) of the AES standard.

CCMP is based on AES processing and uses a 128-bit key and a 128-bit block size.

; MIFARE Plus: drop-in replacement for MIFARE Classic with certified security level ( AES 128 based )

The card is based on an 8051 processor with 3DES / AES crypto accelerator, making very fast transactions possible.

* 2008 — MIFARE Plus is announced as a drop-in replacement for MIFARE Classic based on 128-bit AES

SCIP 231 defines AES based cryptography which can be used multinationally.

AES was developing technology concepts for mission proposals based on the Saturn IB and Saturn V boosters.

* AES Data ( Automatic Electronic Systems ), a former Canadian manufacturer of computer hardware based in Montreal

In the United States, AES was announced by the NIST as U. S. FIPS PUB 197 ( FIPS 197 ) on November 26, 2001.

AES operates on a 4 × 4 column-major order matrix of bytes, termed the state, although some versions of Rijndael have a larger block size and have additional columns in the state.

Until May 2009, the only successful published attacks against the full AES were side-channel attacks on some specific implementations.

Major new features in AIX 6. 1 included full role-based access control, workload partitions ( which enable application mobility ), enhanced security ( Addition of AES encryption type for NFS v3 and v4 ) and Live Partition Mobility on the POWER6 hardware.

The AES Cayuga electrical generating station operates in the Town of Lansing, on the east shore of Cayuga Lake.

Technical details of Sony's digital audio disc were presented during the 62nd AES Convention, held on March 13 – 16, 1979, in Brussels.

The program specifics for both MVS and AES game options were contained on every game ROM, whether the cartridge was intended for home or arcade use.

Semi-quantitative compositional and element analysis of a sample using AES is dependent on measuring the yield of Auger electrons during a probing event.

AES is also used extensively as an evaluation tool on and off fab lines in the microelectronics industry, while the versatility and sensitivity of the Auger process makes it a standard analytical tool in research labs.

Data are encrypted on disk with 192-bit AES encryption as well as over the network, with each workspace having a unique set of cryptographic keys.

On October 2, 2000, NIST announced that Rijndael had been selected as the proposed AES and started the process of making it the official standard by publishing an announcement in the Federal Register on February 28, 2001 for the draft FIPS to solicit comments.

* Cryptography: A worrying theoretical cryptanalytic attack on the Advanced Encryption Standard ( AES ) has been announced in a paper by Nicolas Courtois and Josef Pieprzyk entitled " Cryptanalysis of Block Ciphers with Overdefined Systems of Equations ".

The AES implementation, using Brian Gladman's code, was FIPS-197 certified, on March 27, 2003.

Early on, the standard was frequently known as AES / EBU.

For details on the format of AES / EBU data, see the article on S / PDIF.

They sold it on to the AES Corporation in November 1999 for £ 1. 87 billion ( US $ 3 billion ).

Digital microphones complying with the AES 42 standard may be provided with phantom power at 10 volts, impressed on both audio leads and ground.

The original Serpent, Serpent-0, was presented at the 5th workshop on Fast Software Encryption, but a somewhat tweaked version, Serpent-1, was submitted to the AES competition.

AES has recently announced plans to add on a gas fired generator which would approximately double the electricity output of Kilroot.