Editing CRYPTREC (section)

== Comparison with NESSIE ==
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{{Citation needed|date=June 2011}} 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 [[Transport Layer Security|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.