Myths about /dev/urandom

There are a few things about /dev/urandom and /dev/random that are repeated again and again. Still they are false. /dev/urandom is insecure. Always use /dev/random for cryptographic purposes. Fact: /dev/urandom is the preferred source of cryptographic randomness on UNIX-like systems. /dev/urandom is a pseudo random number generator, a PRNG, while /dev/random is a “true” random number generator. Fa

[asahiko]

/dev/urandom に関する迷信について。

[masami256]

Linux 4.8で/dev/urandomと/dev/randomの処理が変わったんだ。

[kfujieda]

“Just use /dev/urandom!”

[fcicq]

always urandom, unless long term SSH/GPG/SSL keys

[tomitake_flash]

アトデヨムヨ

[tmatsuu]

あとで。