It's not the actual spec I'm interested in - it's the memo, which could detail any number of things; how they were able to pressure NIST, theoretical attacks, actual attacks, known vendors, limitations, etc. Names, basically. I want to see if there are any names. R On Wed, Sep 11, 2013 at 12:15 PM, Yan Zhu <[1]yan@mit.edu> wrote: This is the most recent revision of the document in which DUAL_EC_DRBG was presented (specifically, in SP800-90A): [2]http://csrc.nist.gov/publications/PubsDrafts.html#SP-800-90-A%20Rev. %201,%20B,%20and%20C Interestingly, review of this document was reopened for public comment a few days ago "in light of recent reports." Looks like the version that nytimes links to can be found [3]here. It hasn't been confirmed that Dual EC DRBG is used for anything important in practice, AFAIK. See [4]http://crypto.stackexchange.com/questions/10189/who-uses-dual-ec-drb g. On Wed, Sep 11, 2013 at 11:34 AM, Rich Jones <[5]rich@openwatch.net> wrote: NYT confirming suspected Dual EC DRBG backdoor, citing leaked memo, but didn't include the PDF/PPT/mbox/nfo/whatever.. Does anybody have a copy? From [6]http://bits.blogs.nytimes.com/2013/09/10/government-announces-steps- to-restore-confidence-on-encryption-standards/?src=twrhp&_r=1& But internal memos leaked by a former N.S.A. contractor, Edward Snowden, suggest that the N.S.A. generated one of the random number generators used in a 2006 N.I.S.T. standard [7]called the Dual EC DRBG standard which contains a back door for the N.S.A. In publishing the standard, N.I.S.T. acknowledged contributions from N.S.A., but not primary authorship. R -- Yan Zhu [8]http://web.mit.edu/zyan/www/ -- Rich Jones OpenWatch is a global investigative network using mobile technology to build a more transparent world. Download OpenWatch [9]for iOS and [10]for Android! References 1. mailto:yan@mit.edu 2. http://csrc.nist.gov/publications/PubsDrafts.html#SP-800-90-A Rev. 1, B, and C 3. https://code.google.com/p/squeak-cc-validation/source/browse/trunk/fips/SP800-90_DRBG-June2006-final.pdf?r=3 4. http://crypto.stackexchange.com/questions/10189/who-uses-dual-ec-drbg 5. mailto:rich@openwatch.net 6. http://bits.blogs.nytimes.com/2013/09/10/government-announces-steps-to-restore-confidence-on-encryption-standards/?src=twrhp&_r=1& 7. http://web.archive.org/web/20060930163233/http://csrc.nist.gov/publications/nistpubs/800-90/SP800-90_DRBG-June2006-final.pdf 8. http://web.mit.edu/zyan/www/ 9. https://itunes.apple.com/us/app/openwatch-social-muckraking/id642680756?ls=1&mt=8 10. https://play.google.com/store/apps/details?id=org.ale.openwatch&hl=en