Advanced Encryption Standard
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Template:TOC-right The Advanced Encryption Standard, or AES, is a US government specification for a block cipher to replace earlier and weaker Data Encryption Standard.
Starting in the late 90s, the US National Institute of Standards and Technology (NIST) ran a contest to find a block cipher to replace DES. The result is the Advanced Encryption Standard. In October 2002, they announced [1] the winner — Rijndael (pronounced approximately "rhine doll"), from two Belgian designers.
The NIST page on AES [2] has much detail, including links both to all the Rinjdael design documents and to the official standard, approved as FIPS 197,