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Huang: Evaluating Precursor’s Hardware Security

([Security] Nov 23, 2020 18:06 UTC (Mon) (corbet))


For those who are interested in security at the hardware level, [1]this blog post from Andrew 'bunnie' Huang is well worth a read. " Despite any claims you may have heard otherwise, tamper resistance is a largely unsolved problem. Any secrets committed to a non-volatile format are vulnerable to recovery by a sufficiently advanced adversary. The availability of near-atomic level microscopy, along with sophisticated photon and phonon based probing techniques, means that a lab equipped with a few million dollars worth of top-notch gear and well-trained technicians has a good chance of recovering secret key material out of virtually any non-volatile storage media. The hard part is figuring out where the secrets are located on the chip. "



[1] https://www.bunniestudios.com/blog/?p=5979

Huang: Evaluating Precursor’s Hardware Security

[1]Ken Shirriff's blog is probably a good example of this .

[1] https://www.righto.com/

Huang: Evaluating Precursor’s Hardware Security

[1]Ken Shirriff's blog is probably a good example of this .

[1] https://www.righto.com/

A rope lying over the top of a fence is the same length on each side. It
weighs one third of a pound per foot. On one end hangs a monkey holding a
banana, and on the other end a weight equal to the weight of the monkey.
The banana weighs two ounces per inch. The rope is as long (in feet) as
the age of the monkey (in years), and the weight of the monkey (in ounces)
is the same as the age of the monkey's mother. The combined age of the
monkey and its mother is thirty years. One half of the weight of the monkey,
plus the weight of the banana, is one forth as much as the weight of the
weight and the weight of the rope. The monkey's mother is half as old as
the monkey will be when it is three times as old as its mother was when she
she was half as old as the monkey will be when when it is as old as its mother
will be when she is four times as old as the monkey was when it was twice
as its mother was when she was one third as old as the monkey was when it
was old as is mother was when she was three times as old as the monkey was
when it was one fourth as old as it is now. How long is the banana?