On Donnerstag, 29. August 2002 16:58, [EMAIL PROTECTED] wrote:
> Hi Nils,
Hi Vignesh,
[...]
> > RSA_Keys->n=BN_new();
> > BN_init(RSA_Keys->n);
>
> BN_init() is unnecessary, because BN_new() initialize
> the BIGNUM structure.
>
> [...]
>
> > else if( !(RSA_Keys->n->d = (BN_ULONG *)malloc((ModBinLen+1)
> > *BN_BITS2))) {
> > printf("RSA_Keys->n->d is NULL\n");
> > exit(1);
> > }
>
> 1. use OPENSSL_malloc()
> 2. set the BIGNUM->dmax value to ModBinLen+1
> 3. 1. and 2. are unnecessary because the BN functions automatically
> allocate the required memory.
> __________________________________________________
> I think we might need to allocate memory as BN_new() only allocates memory
> for
> the BIGNUM pointer, but does it allocate memory for the inner pointers?
Yes, BN_new() only allocates memory for the BIGNUM structure and
initialize it. But BN_bin2bn() (and all other BIGNUM functions) allocate, iff
necessary, sufficient memory ( the bn_expand() macro tests whether
BIGNUM->dmax (this value contains the size of the BIGNUM->d array) is
large enough and, if not, allocates enough memory ).
Bye,
Nils
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