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Don't cheat: when only getting several bytes from each source, n is incremented

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correctly, but RAND_add(..,n) counts the increasing n several times.
Only RAND_add(..,n) once entropy collection is finished.
This commit is contained in:
Lutz Jänicke 2001-01-09 10:58:36 +00:00
parent 3c91484052
commit 28e5428d5d
1 changed files with 5 additions and 2 deletions
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7
crypto/rand/rand_unix.c
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@ -183,10 +183,13 @@ int RAND_poll(void)
&& t.tv_usec != 0 && n < ENTROPY_NEEDED); && t.tv_usec != 0 && n < ENTROPY_NEEDED);
close(fd); close(fd);
RAND_add(tmpbuf,sizeof tmpbuf,n);
memset(tmpbuf,0,n);
} }
} }
if (n > 0)
{
RAND_add(tmpbuf,sizeof tmpbuf,n);
memset(tmpbuf,0,n);
}
#endif #endif
/* put in some default random data, we need more than just this */ /* put in some default random data, we need more than just this */