-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2014-6699 2014-05-25 22:22:26 --------------------------------------------------------------------------------
Name : RdRand Product : Fedora 19 Version : 2.0.0 Release : 1.fc19 URL : http://github.com/BroukPytlik/RdRand Summary : Library for generating random numbers using the RdRand instruction on Intel CPUs Description : RdRand is an instruction for returning random numbers from an Intel on-chip hardware random number generator.RdRand is available in Ivy Bridge and later processors.
It uses cascade construction, combining a HW RNG operating at 3Gbps with CSPRNG with all components sealed on CPU. The entropy source is a meta-stable circuit, with unpredictable behavior based on thermal noise. The entropy is fed into a 3:1 compression ratio entropy extractor (whitener) based on AES-CBC-MAC. Online statistical tests are performed at this stage and only high quality random data are used as the seed for cryptograhically secure SP800-90 AES-CTR DRBG compliant PRNG. This generator is producing maximum of 512 128-bit AES blocks before it's reseeded. According to documentation the 512 blocks is a upper limit for reseed, in practice it reseeds much more frequently.
-------------------------------------------------------------------------------- Update Information:
Partial rewriting, added optional AES encryption of generated values. --------------------------------------------------------------------------------
This update can be installed with the "yum" update program. Use su -c 'yum update RdRand' at the command line. For more information, refer to "Managing Software with yum", available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys --------------------------------------------------------------------------------
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