Sony Develops "CLEFIA", New Block Cipher Algorithm Based on State-of-the-art Design Technologies.Tokyo, Japan, Mar 23, 2007 - (JCN Newswire) - Sony Corporation today announced "CLEFIA",[1] a new highly secure and efficient block cipher algorithm that delivers advanced copyright protection and authentication, which is essential in the growing environment of digital data distribution, such as music and images. Based on cutting edge cipher design techniques, Sony's "CLEFIA" block cipher maintains high security levels while providing both world-leading hardware and software implementation capabilities, the combination of which had proved difficult until now. Sony will unveil the results of this development at the "Fast Software Encryption Fast Software Encryption, often abbreviated FSE, is a workshop for cryptography research, focussed on symmetric-key cryptography with an emphasis on fast, practical techniques, as opposed to theory. 2007"[2] international conference, to be held in Luxembourg for three days from March 26. Sony's newly developed "Diffusion Switching Mechanism (DSM 1. DSM - Data Structure Manager. An object-oriented language by J.E. Rumbaugh and M.E. Loomis of GE, similar to C++. It is used in implementation of CAD/CAE software. DSM is written in DSM and C and produces C as output. )"[3] technology is the result of research into improving security while reducing overall cost. It successfully achieves secure cipher algorithms, even with fewer operations, by selecting the optimum diffusion matrices in the Feistel structure[4]. This technology enables reductions in gate size when implemented in hardware, and greater implementation efficiency when used in software. The key advantages of "CLEFIA" are its enhanced implementation efficiency in terms of both hardware and software, and its high speed operation. When implemented in hardware it achieves maximum throughput of 1.42 Gbps using a 0.09 micrometer micrometer (mīkrŏm`ətər, mī`krōmē'tər). 1 Instrument used for measuring extremely small distances. CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes. standard cell library and gate size of just 6.1K, representing the world's highest hardware gate efficiency. Consequently, "CLEFIA" is able to provide advanced capabilities, even in restrictive environments such as smart cards and mobile devices. When implemented in software it can realize high speed performance on a wide variety of processors. The "CLEFIA" interface corresponds to 128-bit block cipher technology such as the US government's Advanced Encryption Standard (cryptography, algorithm) Advanced Encryption Standard - (AES) The NIST's replacement for the Data Encryption Standard (DES). The Rijndael /rayn-dahl/ symmetric block cipher, designed by Joan Daemen and Vincent Rijmen, was chosen by a NIST contest to be AES. (AES), and the ISO/IEC ISO/IEC International Organization for Standardization/International Electrotechnical Commission (ITU-T M 3000) 18033-3 International Standards. Block length is 128 bits, while key length can be selected from 128 bits, 192 bits, and 256 bits. The "CLEFIA" cipher is meticulously designed to concentrate state-of-the-art cryptanalysis The art of recovering original data (the plaintext) that has been encrypted (turned into ciphertext) without having access to the correct key used in the encryption process. When new encryption algorithms are introduced, cryptanalysis determines how hard it is to break the code. techniques and achieve sufficient immunity against known cryptanalytic crypt·a·nal·y·sis n. 1. The analysis and deciphering of cryptographic writings or systems. 2. also crypt·an·a·lyt·ics (used with a sing. attacks. Sony has cooperated with Japan's leading researcher in this field to create this design, and has had the new cipher design verified by a number of third party experts overseas. Going forward, Sony will seek to establish an environment in which "CLEFIA" can be used across various applications and products such as AV devices, while continuing to develop technologies that our customers can use with confidence. [1] Based on the French word "Clef" meaning "key". [2] International conference hosted by IACR (International Association of Cryptologic cryp·tol·o·gy n. The study of cryptanalysis or cryptography. cryp  to·log Research) for presenting research results on
symmetric key cipher technology. This year is the 14th meeting.
[3] Basic block cipher structure, as adopted by DES (Data Encryption Standard See DES. Data Encryption Standard - (DES) The NBS's popular, standard encryption algorithm. It is a product cipher that operates on 64-bit blocks of data, using a 56-bit key. It is defined in FIPS 46-1 (1988) (which supersedes FIPS 46 (1977)). ) etc. [4] Diffusion Switching Mechanism. Related research results previously presented at FSE FSE 1. feline spongiform encephalopathy. 2. focal symmetrical encephalomalacia. 2004, ASIACRYPT2004, FSE2006 etc. About Sony Sony Corporation is a leading manufacturer of audio, video, game, communications, key device and information technology products for the consumer and professional markets. With its music, pictures, computer entertainment and on-line businesses, Sony is uniquely positioned to be the leading personal broadband entertainment company in the world. Sony recorded consolidated annual sales of approximately $67 billion for the fiscal year ended March 31, 2005. Sony Global Web Site: http://www.sony.net Source: Sony Contact: Sony Corporation Corporate Communications Tel: +81-3-5448-2200 Fax: +81-3-5448-3061 Copyright [c] 2007 JCN Newswire. All rights reserved. A division of Japan Corporate News Network K.K. |
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