Linux 5.10 To Make One Of Its Pseudo Random Number Generators Less Predictable

[phoronix]

Phoronix: Linux 5.10 To Make One Of Its Pseudo Random Number Generators Less Predictable

The Linux kernel's prandom_u32() interface for providing pseudo-random number generation is used heavily by the kernel's networking code but that PRNG output can be figured out rather predictably. Thus lining up for Linux 5.10 is a new prandom_u32 implementation...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-5.10-prandom_u32

[skeevy420]

Frankly, I'm not surprised something that could be renamed into fake-random was easily predictable.

With the new implementation, speed is still emphasized as critically important with the PRNG interface and obviously for those in need of more secure random number generation should look at the other RNGs.

Fast or Random -- pick one because you can't get both...unless you're hardcore and have an entropy wall or something like that.

It always comes down to "Fast or XYZ".

[cl333r]

The fastest number generator with least overhead:

https://imgs.xkcd.com/comics/random_number.png