On Thursday, August 12, 2021, 01:32:06 PM PDT, coderman
   <coderman@protonmail.com> wrote:

   > [1]https://labs.bishopfox.com/tech-blog/youre-doing-iot-rng
   Very interesting and useful.
   However, that article didn't seem to distinguish between various kinds
   of RNG.  Radioactive decay, or perhaps digitization of white-noise,
   etc.  If they are merely hashing and re-hashing some value, I suppose
   that could be very bad.  If they are seeding the RNG with other,
   unpredictable bits (like keypresses, etc), that could be a bit better.
   I just did a google search for 'hardware rng' and got this ad:
   [2]https://www.idquantique.com/random-number-generation/products/quanti
   s-qrng-chip/?utm_source=google_ads_search&utm_medium=cpc&gclid=CjwKCAjw
   jdOIBhA_EiwAHz8xm1tHp6b2yb2Iun1tXPVG6sUIwzwCvWgyHNlJFHpHLNAcj2c_Bx23dBo
   CBfMQAvD_BwE

   ID Quantique introduces its true Quantum Random Number Generator (QRNG)
   Chip, which offers the highest attainable security and robustness for
   the generation of random bits. It is ideal for use in the automotive,
   computing, critical infrastructure, IoT, mobile and security
   applications where compact size and resistance to external
   environmental perturbations are critical.

   IDQ’s QRNG chip is available in three models, depending on size,
   performance, power consumption and certifications, in order to fit
   various industry-specific needs.

   Quantis QRNG IDQ250C2 is the first Quantum Random Number Generator
   designed and manufactured specifically for mobile handsets, IoT and
   edge devices.

   Mobile applications today require the collection and transmission to
   handsets of more and more sensitive data including financial, health,
   business and personal information. IoT and edge devices are now
   connecting home, hospitals, factories, infrastructure, schools and
   shopping locations, rising the need for security to the edge.

   With its low profile, compact size and low power consumption, IDQ250C2
   is ideal for securing the collection and transfer of sensitive data at
   the edge.

   Quantis QRNG IDQ6MC1 is ideal for applications where resistance to
   external environmental perturbations are critical. It has
   obtained [3]AEC-Q100 certification, demonstrating it can reliably be
   embedded in any security system of a connected car to ensure trusted
   and secured in-vehicle and V2X communications. The need to exchange
   data between back-end systems and vehicles – as well as between
   vehicles directly – makes these systems vulnerable to cyber-attacks,
   which could lead to expensive vehicle recalls, significant safety risks
   and threats to human life. In turn, this exposes vehicle manufacturers
   and organizations tasked with infrastructure management to substantial
   liability risks.

   Quantis QRNG IDQ20MC1 has the highest entropy throughput and can serve
   multiple security applications with true and unpredictable randomness.
   It can be easily embedded in computers, laptops, servers or any
   security devices. As the IDQ6MC1, it embeds DRBG postprocessing,
   compliant with NIST SP800-90 A/B/C recommendations.

   Based on a technology concept and patent from IDQ, Quantis QRNG chips
   harness true quantum randomness from the shot noise of a light source
   captured by a CMOS image sensor.

   Only Quantum RNGs are intrinsically random, provably secure and future
   proof. Quantum physics is probabilistic on a fundamental level, which
   means that they can produce unpredictable outcomes in a robust,
   transparent and well controlled way. Since the entropy source is
   described with fundamental models, all properties of the entropy source
   are understood, and the security can be proven. Additionally, Quantis
   QRNG chips provide full entropy instantaneously from the very first
   bit.
   [end of quote]

References

   1. https://labs.bishopfox.com/tech-blog/youre-doing-iot-rng
   2. https://www.idquantique.com/random-number-generation/products/quantis-qrng-chip/?utm_source=google_ads_search&utm_medium=cpc&gclid=CjwKCAjwjdOIBhA_EiwAHz8xm1tHp6b2yb2Iun1tXPVG6sUIwzwCvWgyHNlJFHpHLNAcj2c_Bx23dBoCBfMQAvD_BwE
   3. https://marketing.idquantique.com/acton/attachment/11868/f-1aeebed5-6216-453f-8e09-8b4bf976e92e/1/-/-/-/-/ID Quantique_IDQ6MC1_AEC-Q100 report summary.pdf