Comment on Researchers claim spoof-proof random number generator breakthrough

monogram@feddit.nl ⁨1⁩ ⁨week⁩ ago

• neidu3@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

  urandom*

  source

  • monogram@feddit.nl ⁨1⁩ ⁨week⁩ ago

    Fixed

    source

    • neidu3@sh.itjust.works ⁨1⁩ ⁨week⁩ ago

      Not that much of a fix. It’s mostly down to pedantry on my back half.

      /dev/random is blocking unless sufficient entropy is available.
      /dev/urandom is non-blocking and will supply output anyway.

      So for security-critical stuff that might run in a low entropy state (such as during the NG boot), you probably want to use /dev/random. But in 99% of the cases /dev/urandom is fine, and it won’t halt your program.

      Image

      source