skalibs/src/librandom/random_makeseed.c, branch v2.15.1.0

Prepare for 2.12.0.0. librandom revamp.

2022-04-09T02:28:05Z

Signed-off-by: Laurent Bercot

Don't write to /dev/urandom. (It's useless or even harmful.)

2022-03-27T06:46:04Z

Huge incompatible changes.

2021-07-28T23:45:20Z

- Obsolete skalibs/environ.h and skalibs/getpeereid.h removed. - rc4 and md5 removed. - All *_t types renamed to avoid treading on POSIX namespace. - subgetopt() renamed to lgetopt(). - signal functions reworked; skasigaction removed; sig_stack removed - Various functions removed: skaoffsetof(), selfpipe_untrap() - New posixplz function: munmap_void. Signed-off-by: Laurent Bercot

Comment fix (writing to /dev/urandom doesn't speed it up)

2017-09-27T11:54:42Z

Types fix: librandom, libstdcrypto

2017-01-21T15:46:20Z

Clean up and modernize librandom.

2016-10-14T17:07:56Z

Correct random number generation has historically been suprisingly painful to achieve. There was no standard, every system behaved in a subtly different way, and there were a few userland initiatives to get decent randomness, all incompatible of course. The situation is a bit better now, we're heading towards some standardization. The arc4random() series of functions is a good API, and available on a lot of systems - unfortunately not Linux, but on Linux the new getrandom() makes using /dev/random obsolete. So I removed the old crap in librandom, dropped EGD support, dropped dynamic backend selection, made a single API series (random_* instead of goodrandom_* and badrandom_*), added an arc4random backend and a getrandom backend, and defaulted to /dev/urandom backed up by SURF in the worst case. This should be much smaller and logical. However, it's a major API break, so the skarnet.org stack will be changed to adapt.