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Return bignum '0' when BN_rand is asked for a 0 bit random number.

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Bodo Möller 2000-07-02 19:42:19 +00:00
parent 3f2599d97d
commit 904cb691f3
1 changed files with 6 additions and 0 deletions
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6
crypto/bn/bn_rand.c
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@ -68,6 +68,12 @@ static int bnrand(int pseudorand, BIGNUM *rnd, int bits, int top, int bottom)
int ret=0,bit,bytes,mask; int ret=0,bit,bytes,mask;
time_t tim; time_t tim;
if (bits == 0)
{
BN_zero(rnd);
return 1;
}
bytes=(bits+7)/8; bytes=(bits+7)/8;
bit=(bits-1)%8; bit=(bits-1)%8;
mask=0xff<<bit; mask=0xff<<bit;