Once upon a time, Samuel Sieb <samuel@xxxxxxxx> said: > On 5/25/23 18:18, Bill Cunningham wrote: > > How would you access randomization at the system level? No > >via srand or rand, but the randomization the system offers through > >/dev/random. Would this be a fedora level system call ? > > > > I intend to take a 512 or 1024, for example, size chunk and > >fill that with system randomization. Not what you get with srand > >and rand I believe they are inferior to system randomization. > > Open /dev/random as a binary file and read however many bytes you want. > I assume you know that the amount of data available from there is > limited and if you ask for too much, you might have to wait a while > for it to get generated. There's also /dev/urandom (which should never "run out" of randomness), but IIRC they're the basically same now and neither will block (except possibly during boot). But if you're writing a program, there's the getrandom() call. https://man7.org/linux/man-pages/man2/getrandom.2.html -- Chris Adams <linux@xxxxxxxxxxx> _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
