Why This Matters
A user investigating AMD's hardware random number generator claims it never produces a zero value across millions of samples, a potential flaw that could undermine cryptographic operations relying on true randomness. AMD has acknowledged and escalated the report internally, but no fix or explanation has been issued yet, leaving questions about the reliability of hardware RNGs used in security-critical systems.
Key Takeaways
- A researcher reports that AMD processors' RNG instructions never returned a zero value in extensive testing, raising concerns about randomness quality.
- AMD has escalated the issue internally but has not yet provided a technical explanation or fix.
- The report includes new benchmarking tools showing significant performance differences in RNG generation speed across different CPU generations.
Jessé
Joined: 03 May 2025
Posts: 151
Location: Brazil
Jessé 23 May 2026, 17:43
Furthermore, I must say that I have not yet received any further feedback from AMD regarding the case. But they have already escalated my case internally with them, so I am still here waiting for a precise update from them, to share it here. And, since 9 days before posting here, until the present moment, not a single 0 came out of the 2 AMDs that I had access to!
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