Folks,
Trying to resolve a problem with the BIGNUM divide routine BN_div; could
someone check the code below and let me know if there is anything wrong with
code...
The code below is from openssl version 9.6B
int BN_div(......)
{
BIGNUM *snum;
BN_ULONG *wnump; /* a word number pointer ?? */
/* pointer to the 'top' of snum */
wnump = &(snum->d[num_n-1]);
for (i=0; i<loop-1; i++)
{
BN_ULONG n0, n1,rem=0;
n0=wnump[0];
n1=wnump[-1]; /* THIS ASSIGNMENT... WHAT DOES IT MEAN ?? */
#ifndef REMAINDER_IS_ALREADY_CALCULATED
rem = (n1-q*d0)&BN_MASK2; /* >>>>>>> RUN TIME ERROR HERE !!! */
#endif
:
: >>>>> some code <<<<<<<
:
wnump--; /* CAN THIS BE DONE ON THE ARRAY OF LONGS IN A BIGNUM ?
*/
}
>>>> end of source >>>>>>
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