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Support RDRAND on AMD Ryzen CPU #28

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blackbearman opened this issue Nov 11, 2022 · 1 comment
Closed

Support RDRAND on AMD Ryzen CPU #28

blackbearman opened this issue Nov 11, 2022 · 1 comment
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@blackbearman
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Ryzen series of AMD processors support instructions RDRAND and RDSEED. Instructions for checking of presence and random numbers generations are same on Intel and AMD platforms.

Bee2 checks manufacturer by CPUID 01 instruction to be Intel ("GenuineIntel" in a twelve-character ASCII string stored in EBX, EDX, ECX). AMD processors produce "AuthenticAMD" after same CPUID command.
@agievich agievich added the rng label Feb 14, 2023
@blackbearman
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Tested bb70597 on AMD Ryzen 5 5600H (cat /proc/cpuinfo shows flags : rdrand rdseed ...)

rngSource[ trng]: 19142CF6582CB0B18EDD0932B4A2DA31... [FIPS: 1+ 2+ 3+ 4+]
rngSource[trng2]: A2E6AC1805803AF33349AD2018DA4E5B... [FIPS: 1+ 2+ 3+ 4+]
rngSource[  sys]: A5584A86EE4E36BAE96717C1D491B376... [FIPS: 1+ 2+ 3+ 4+]
rngSource[timer]: 2D5115DF89D26EE9B028E11788CC361B... [FIPS: 1+ 2+ 3+ 4+]
rngStepR:         8CF66A8D612B4D968907584D518C0D26... [FIPS: 1+ 2+ 3+ 4+]
rngStepR2:        C49EE0446557912D30EEBCFBE8A54709... [FIPS: 1+ 2+ 3+ 4+]
rngTest: OK

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@blackbearman @agievich