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Concept
CRYPTREC
Summary
CRYPTREC is the Cryptography Research and Evaluation Committees set up by the Japanese Government to evaluate and recommend cryptographic techniques for government and industrial use. It is comparable in many respects to the European Union's NESSIE project and to the Advanced Encryption Standard process run by National Institute of Standards and Technology in the U.S.
There is some overlap, and some conflict, between the NESSIE selections and the CRYPTREC draft recommendations. Both efforts include some of the best cryptographers in the world therefore conflicts in their selections and recommendations should be examined with care. For instance, CRYPTREC recommends several 64 bit block ciphers while NESSIE selected none, but CRYPTREC was obliged by its terms of reference to take into account existing standards and practices, while NESSIE was not. Similar differences in terms of reference account for CRYPTREC recommending at least one stream cipher, RC4, while the NESSIE report specifically said that it was notable that they had not selected any of those considered. RC4 is widely used in the SSL/TLS protocols; nevertheless, CRYPTREC recommended that it only be used with 128-bit keys. Essentially the same consideration led to CRYPTREC's inclusion of 160-bit message digest algorithms, despite their suggestion that they be avoided in new system designs. Also, CRYPTREC was unusually careful to examine variants and modifications of the techniques, or at least to discuss their care in doing so; this resulted in particularly detailed recommendations regarding them.
CRYPTREC includes members from Japanese academia, industry, and government. It was started in May 2000 by combining efforts from several agencies who were investigating methods and techniques for implementing 'e-Government' in Japan. Presently, it is sponsored by
the Ministry of Economy Trade and Industry,
the Ministry of Public Management, Home Affairs and Post and Telecommunications,
the Telecommunications Advancement Organization, and
the Information-Technology Promotion Agency.
Official source
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