From a1933bd1847951b959016f59ee744d1b18a00142 Mon Sep 17 00:00:00 2001 From: Laurent Bercot Date: Fri, 14 Oct 2016 17:07:56 +0000 Subject: Clean up and modernize librandom. 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. --- src/librandom/surf_makeseed.c | 35 ----------------------------------- 1 file changed, 35 deletions(-) delete mode 100644 src/librandom/surf_makeseed.c (limited to 'src/librandom/surf_makeseed.c') diff --git a/src/librandom/surf_makeseed.c b/src/librandom/surf_makeseed.c deleted file mode 100644 index adae9a4..0000000 --- a/src/librandom/surf_makeseed.c +++ /dev/null @@ -1,35 +0,0 @@ -/* ISC license. */ - -#include -#include -#include -#include -#include - -void surf_makeseed (char *s) -{ - SHA1Schedule bak = SHA1_INIT() ; - { - tain_t now ; - char tmp[20 + TAIN_PACK] ; - uint32 x = getpid() ; - uint32_pack(tmp, x) ; - x = getppid() ; - uint32_pack(tmp + 4, x) ; - tain_now(&now) ; - tain_pack(tmp + 8, &now) ; - sha1_update(&bak, tmp, 8 + TAIN_PACK) ; - sha1_final(&bak, tmp) ; - sha1_init(&bak) ; - sha1_update(&bak, tmp, 20) ; - } - { - char i = 0 ; - for (; i < 8 ; i++) - { - SHA1Schedule ctx = bak ; - sha1_update(&ctx, &i, 1) ; - sha1_final(&ctx, s + 20*i) ; - } - } -} -- cgit v1.3.1