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There's a slight possibility that a is 0 in BN_sub_word(), and might

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therefore have unallocated parts.  Therefore, a check for the 0 case
is needed, resulting with the same thing as when a is negative.
This commit is contained in:
Richard Levitte 2000-07-27 21:32:23 +00:00
parent 8b4e27e26e
commit 8083e1bd9e
1 changed files with 1 additions and 1 deletions
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2
crypto/bn/bn_word.c
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@ -140,7 +140,7 @@ int BN_sub_word(BIGNUM *a, BN_ULONG w)
{ {
int i; int i;
if (a->neg) if (BN_is_zero(a) || a->neg)
{ {
a->neg=0; a->neg=0;
i=BN_add_word(a,w); i=BN_add_word(a,w);