CRYPTREC

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 NIST 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

It is also the organization providing technical evaluation and recommendations in regard to regulations implementing Japanese laws: examples include that on Electronic Signatures and Certification Services (Law 102 of FY2000, taking effect as from April 2001), the Basic Law on the Formulation of an Advanced Information and Telecommunications Network Society of 2000 (Law 144 of FY2000), and the Public Individual Certification Law of December 2002. Furthermore, CRYPTEC has responsibilities with regard to the Japanese contribution to the ISO/IEC JTC 1/SC27 standardization effort.

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