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Myths about /dev/urandom

2uo.desite

There are a few things about /dev/urandom and /dev/random that are repeated again and again. Still they are false.

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Falsehood
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2026-10-10
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  1. random-bytes-readable-stream github.com

    Cross-platform fs.createReadStream('/dev/urandom').

    tool link ↗
  2. Security Recommendations for Any Device that Depends on Randomly-Generated Numbers av8n.com

    “The phrase 'random number generator' should be parsed as follows: It is a random generator of numbers. It is not a generator of random numbers.”

    site link ↗
  3. Falsehoods about Plain Text jeremyhussell.blogspot.com

    Plain text can't cut it, which makes Unicode even more incredible for its ability to just work well.

    site link ↗
  4. Falsehoods about Unix Time alexwlchan.net

    Mind the leap second!

    site link ↗
  5. Fallacies of Distributed Computing en.wikipedia.org

    Assumptions that programmers new to distributed applications invariably make.

    site link ↗

Falsehood › Software Engineering: “There are a few things about /dev/urandom and /dev/random that are repeated again and again. Still they are false.”