**2000 – The Rijndael algorithm is chosen by NIST as the AES standard**

**2000 – The Rijndael algorithm is chosen by NIST as the AES standard**

The Advanced Encryption Standard (AES), also known by its original name Rijndael algorithm is a specification for the encryption of electronic data established by the U.S. National Institute of Standards and Technology (NIST).

AES is a subset of the Rijndael block cipher developed by two Belgian cryptographers, Vincent Rijmen and Joan Daemen, who submitted a proposalto NIST during the AES selection process and was chosen 0n the 2^{nd} October, 2000.

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

Rijndael is a family of ciphers with different key and block sizes. For AES, NIST selected three members of the Rijndael family, each with a block size of 128 bits, but three different key lengths: 128, 192 and 256 bits.

Extra Note: AES has been adopted by the U.S. government and is now used worldwide. It supersedes the Data Encryption Standard (DES), which was published in 1977.

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