NIST

NIST imposes a few challenges to digital cinema as its security requirements migrate to more stringent standards. One of these challenges is with the multiuse of the media block certificate for both digital signatures and decryption of security keys contained in KDMs.  But this problem has been solved, at least conceptually.  (See last month’s report [...]

NIST introduced a new version of FIPS 140-2 Annex A this month.  A year ago, NIST changed the same document to include reference to FIPS 186-3, an updated version of its Digital Signature Standard.  The disturbing news a year ago was that new media blocks would have to incorporate an additional digital security certificate to [...]