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Name: RdRand | Distribution: Fedora Project |
Version: 2.1.6 | Vendor: Fedora Project |
Release: 1.el10_1 | Build date: Mon Jun 16 13:38:06 2025 |
Group: Unspecified | Build host: buildhw-x86-06.iad2.fedoraproject.org |
Size: 90763 | Source RPM: RdRand-2.1.6-1.el10_1.src.rpm |
Packager: Fedora Project | |
Url: https://github.com/jirka-h/RdRand | |
Summary: Library for generating random numbers using the RDRAND (read random) instruction |
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 cryptographically 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.
LGPL-2.0-or-later
* Mon Jun 16 2025 Jirka Hladky <hladky.jiri@gmail.com> - 2.1.6-1.el10_1 - Initial build for EPEL 10
/usr/bin/rdrand-gen /usr/lib/.build-id /usr/lib/.build-id/87 /usr/lib/.build-id/87/ceedbf2b3e4b7de9935a71eb49c57262b6f18d /usr/lib/.build-id/fc /usr/lib/.build-id/fc/ec70ee2b7e8051f5bb78e8260098d599743e4c /usr/lib64/librdrand.so.1 /usr/lib64/librdrand.so.1.0.2 /usr/share/doc/RdRand /usr/share/doc/RdRand/COPYING /usr/share/doc/RdRand/ChangeLog /usr/share/doc/RdRand/NEWS /usr/share/doc/RdRand/README /usr/share/man/man7/rdrand-gen.7.gz
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Fabrice Bellet, Fri Jun 20 04:18:40 2025