Formalization of the Advanced Encryption Standard. Part I

• Autorzy: Kenichi Arai , Hiroyuki Okazaki
• Języki publikacji: EN

Abstrakty

EN

In this article, we formalize the Advanced Encryption Standard (AES). AES, which is the most widely used symmetric cryptosystem in the world, is a block cipher that was selected by the National Institute of Standards and Technology (NIST) as an official Federal Information Processing Standard for the United States in 2001 [12]. AES is the successor to DES [13], which was formerly the most widely used symmetric cryptosystem in the world. We formalize the AES algorithm according to [12]. We then verify the correctness of the formalized algorithm that the ciphertext encoded by the AES algorithm can be decoded uniquely by the same key. Please note the following points about this formalization: the AES round process is composed of the SubBytes, ShiftRows, MixColumns, and AddRoundKey transformations (see [12]). In this formalization, the SubBytes and MixColumns transformations are given as permutations, because it is necessary to treat the finite field GF(28) for those transformations. The formalization of AES that considers the finite field GF(28) is formalized by the future article.

Słowa kluczowe

EN

Mizar formalization; Advanced Encryption Standard (AES) algorithm; cryptology

• Wydawca: De Gruyter Open
• Czasopismo: Formalized Mathematics
• Rocznik: 2013
• Tom: 21
• Numer: 3
• Strony: 171-184

Daty

wydano

2013-10-01

Twórcy

autor

Kenichi Arai

• Tokyo University of Science Chiba, Japan

autor

Hiroyuki Okazaki

• Shinshu University Nagano, Japan

Bibliografia

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Identyfikatory

DOI

10.2478/forma-2013-0019