1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Linux 3.15 Random To Support Intel's RDSEED

Linux Kernel

Published on 04 April 2014 03:08 AM EDT
Written by Michael Larabel in Linux Kernel
9 Comments

The Linux 3.15 kernel's /dev/random implementation will feature a new instruction of Intel's upcoming Broadwell processors.

Intel Broadwell processors introduce a new RDSEED CPU instruction that is used as a pseudo-random number generator (PRNG). The RDRAND instruction (also known as Bull Mountain) that was introduced with Ivy Bridge CPUs is considered by the US NIST as a cryptographically secure pseudorandom number generator. The RDSEED instruction meanwhile is considered a non-deterministic random bit generator in compliance with NIST's SP 800-90 B and C.

RDSEED yields a true random number generator and is intended to be used by software that have an existing pseudo-random number generator so you can use RDSEED as its seed input. With the Linux 3.15 kernel, the RDSEED instruction is supported with Broadwell hardware for seeding /dev/random.

The random pull request for the Linux 3.15 kernel can be found on the kernel mailing list.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. A Tour Of The New Phoronix Office
  2. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
  3. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  4. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
Latest Linux News
  1. Linux 3.17-rc6 Released; Linux 3.17 Final Might Come In One Week
  2. X.Org Server 1.16.1 Released
  3. Mesa Gets Closer To Having OpenGL 4.0 Tessellation Support
  4. Uselessd: A Stripped Down Version Of Systemd
  5. F2FS Tools Gain FSCK Support
  6. FreeBSD 10.1 Has The New VT Driver, Hardware Improvements
  7. AntiMicro 2.6 Yields Greater Compatibility For Gamepads On Linux
  8. OpenGL 3.3 / GLSL 3.30 Lands For Intel Sandy Bridge On Mesa
  9. AMD's RadeonSI Gallium3D Driver Sees Some Improvements
  10. Mesa 10.3 Released With The Latest Open-Source GPU Driver Improvements
Latest Forum Discussions
  1. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  2. Trolling on the Phoronix forums
  3. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  4. New stress testing utility for GPU's
  5. ASRock AM1H-ITX: One Of The Best AM1 Mini-ITX Motherboards
  6. Can Linux kill a motherboard?
  7. Stop grabbing my keyboard :(
  8. New Group Calls For Boycotting Systemd