33C3: Analyzing Embedded Operating System Random Number Generators
http://samvartaka.github.io/cryptanalysis/2017/01/03/33c3-embedded-rngs [samvartaka.github.io]
2017-01-08 00:59
Tiny computers with not so tiny flaws.
To make matters worse, the PRNG was vulnerable to a local reseed attack since the /dev/urandom interface was world-writable by default allowing any attacker with limited privileges to control the PRNG internal state
source: R