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In cryptography, ARIA is a block cipher designed in 2003 by a large group of South Korean researchers. In 2004, the Korean Agency for Technology and Standards selected it as a standard cryptographic technique. The algorithm uses a substitution-permutation network structure based on AES. The interface is the same as AES: 128-bit block size with key size of 128, 192, or 256 bits. The number of rounds is 12, 14, or 16, depending on the key size. ARIA uses two 8×8-bit S-boxes and their inverses in alternate rounds; one of these is the Rijndael S-box. The key schedule processes the key using a 3-round 256-bit Feistel cipher, with the binary expansion of 1/ as a source of "nothing up my sleeve numbers". == Standardization == * KATS * * KS X 1213:2004 * IETF * * Algorithm * * * RFC 5794: A Description of the ARIA Encryption Algorithm * * TLS/SSL * * * RFC 6209: Addition of the ARIA Cipher Suites to Transport Layer Security (TLS) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ARIA (cipher)」の詳細全文を読む スポンサード リンク
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