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Darrel Hankerson <dhankers@cacr.math.uwaterloo.ca> correctly discovered

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that of the result pointer to bn_mul was the same as one of the two arguments,
That argument might have it's sign destroyed.  He provided this fix.
This commit is contained in:
Richard Levitte 2000-07-26 01:14:16 +00:00
parent 34f0fe9de0
commit 47ff5de8c2
1 changed files with 1 additions and 1 deletions
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2
crypto/bn/bn_mul.c
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@ -631,7 +631,6 @@ int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
al=a->top; al=a->top;
bl=b->top; bl=b->top;
r->neg=a->neg^b->neg;
if ((al == 0) || (bl == 0)) if ((al == 0) || (bl == 0))
{ {
@ -647,6 +646,7 @@ int BN_mul(BIGNUM *r, BIGNUM *a, BIGNUM *b, BN_CTX *ctx)
} }
else else
rr = r; rr = r;
rr->neg=a->neg^b->neg;
#if defined(BN_MUL_COMBA) || defined(BN_RECURSION) #if defined(BN_MUL_COMBA) || defined(BN_RECURSION)
i = al-bl; i = al-bl;