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Don't use buffered fread() to read from DEVRANDOM,

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because this will drain the entropy pool.
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Bodo Möller 2000-02-24 20:24:45 +00:00
parent 0dd0cbf554
commit 1a33f6da8b
1 changed files with 1 additions and 0 deletions
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crypto/rand/md_rand.c
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@ -327,6 +327,7 @@ static void ssleay_rand_initialize(void)
unsigned char tmpbuf[ENTROPY_NEEDED]; unsigned char tmpbuf[ENTROPY_NEEDED];
int n; int n;
setvbuf(fh, NULL, _IONBF, 0);
n=fread((unsigned char *)tmpbuf,1,ENTROPY_NEEDED,fh); n=fread((unsigned char *)tmpbuf,1,ENTROPY_NEEDED,fh);
fclose(fh); fclose(fh);
RAND_add(tmpbuf,sizeof tmpbuf,n); RAND_add(tmpbuf,sizeof tmpbuf,n);