diff options
Diffstat (limited to 'src/librandom/random_makeseed.c')
| -rw-r--r-- | src/librandom/random_makeseed.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/src/librandom/random_makeseed.c b/src/librandom/random_makeseed.c deleted file mode 100644 index 9c518cf..0000000 --- a/src/librandom/random_makeseed.c +++ /dev/null @@ -1,43 +0,0 @@ -/* ISC license. */ - -#include <unistd.h> -#include <stdint.h> -#include <skalibs/uint32.h> -#include <skalibs/tai.h> -#include <skalibs/sha1.h> - -/* - Writes 160 bytes of crap into s. - Certainly not cryptographically secure or 100% unpredictable, - but we're only using this to seed an internal PRNG. -*/ - -void random_makeseed (char *s) -{ - SHA1Schedule bak = SHA1_INIT() ; - { - tain now ; - char tmp[256] ; - uint32_t 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) ; - gethostname(tmp, 256) ; - sha1_update(&bak, tmp, 256) ; - 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) ; - } - } -} |
