RDRAND
AssessTechniques
An x86 instruction that returns random numbers from a hardware random number generator.
Why it's here
Placed in Assess: 1 article(s) of evidence from 1 source(s), led by research-stage coverage, with 1 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 4Hacker News·9/22/2026researchReport claims AMD RDRAND and RDSEED never return 16-bit zero
A forum post on Hacker News alleges that AMD processors may not generate an all-zero value when using the RDRAND and RDSEED instructions at 16-bit width, while Intel systems do. The author says the behavior disappears when using 32-bit or 64-bit outputs and asks others to reproduce the result with a test application.