Advanced Encryption Standard (AES)

AES is a type of "block cipher" in which data of a specific length (block) is processed as a unit. The encryption algorithm is relatively simple, repeating bit-by-bit/byte substitutions, shift operations, and remainder operations, etc., and requires fewer resources for calculations. In addition, the algorithm is processed in 8-bit units, compared to DES, which processes in 4-bit units, and requires fewer repetitions, making it possible to process the same length of data faster than DES.

AES is also used in the New European Schemes for Signatures, Integrity and Encryption (NESSIE), a European cryptographic standard, and in the Cryptography Technology Evaluation Project (CRYPTREC) in Japan. CRYPTREC (Cryptography Research and Evaluation Committees), a Japanese cryptography evaluation project.