Dual_EC_DRBG

下記の記事が出ている。

　NSA official: Support of backdoored Dual_EC_DRBG was “regrettable”
　ars technica: January 15, 2015
　http://arstechnica.com/security/2015/01/nsa-official-support-of-backdoored-dual_ec_drbg-was-regrettable/

　NSA: SO SORRY we backed that borked crypto even after you spotted the backdoor
　Register: 14 January, 2015
　http://www.theregister.co.uk/2015/01/14/nsa_sorry_we_borked_nist_encryption_well_sorry_
we_got_caught/