Advanced Encryption Standard

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Advanced Encryption Standard

(cryptography, algorithm)
(AES) The NIST's replacement for the Data Encryption Standard (DES). The Rijndael /rayn-dahl/ symmetric block cipher, designed by Joan Daemen and Vincent Rijmen, was chosen by a NIST contest to be AES.

AES is Federal Information Processing Standard FIPS-197.

AES currently supports 128, 192 and 256-bit keys and encryption blocks, but may be extended in multiples of 32 bits.

Rijndael home page.
This article is provided by FOLDOC - Free Online Dictionary of Computing (


(Advanced Encryption Standard) A U.S. government encryption standard supported by the National Institute of Standards & Technology (NIST). AES is a cryptographic cipher that uses a block length of 128 bits and key lengths of 128, 192 or 256 bits. Officially replacing the Triple DES method in 2001, AES uses the Rijndael algorithm developed by Joan Daemen and Vincent Rijmen of Belgium. AES can be encrypted in one pass instead of three, and its key size is greater than Triple DES's 168 bits. In early 1997, the NIST invited cryptographers to submit an advanced algorithm. In late 2000, the Rijndael (pronounced "rine-doll") symmetric block cipher algorithm was selected out of submissions by 21 teams from 11 countries. See cipher, cryptography, NIST, DES and AES/CCMP.

(2) (Audio Engineering Society, Inc., New York, A membership association devoted to audio technology research and development, marketing and education. Founded in 1948, technical standards have been continually developed under its auspices. AES is dedicated to ensuring that audio quality is maintained in the digital world. See AES/EBU.

(3) (Automated Export System) A U.S. Customs Service application that tracks goods exported to foreign countries.
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References in periodicals archive ?
The product also uses an AES256 encryption, which helps in prohibiting any unauthorized devices from communicating with the card for data retrieval.
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The timing for the two peripherals was different: while the AES256 core encrypted the input file in 5.65ms, it took 3.13ms for the SHA core to compute the hash value.
In the worst case, with AES256, the encryption process consumes memory overhead of 0.5 KB of RAM, 0.63 KB of ROM, 0.57 second encryption time on the device, and 0.18 second on the gateway.
The service provides advanced security, including SSL encryption of management channels and in-transit and at-rest AES256 data encryption.
He explains that using Wickr, user ID and device communications undergo multiple rounds of salted cryptographic hashing using SHA256, data at rest and in transit are encrypted with AES256, password and password hashes do not leave the device, and lastly that messages and media are subject to auto-deletion upon expiration.