Am Dienstag, 1. März 2016, 11:08:34 schrieb Salvatore Benedetto:
Hi Salvatore,
> > > +static int dh_check_params_length(unsigned int p_len)
> > > +{
> > > + switch (p_len) {
> > > + case 768:
> > > + case 1024:
> > > + case 1536:
> > > + case 2048:
> > > + case 3072:
> > > + case 4096:
> > > + return 0;
> > > + }
> > > + return -EINVAL;
> > > +}
> >
> > What is the reason for restricting the size to 4096?
>
> Honestly no reason.
> Could not find restrictions in the spec about the params length.
I am just wondering because other DH impls allow longer sizes.
And besides, I would like to disallow all < 2048 right from the start.
>
> > > +
> > > +static int dh_no_op(struct akcipher_request *req)
> > > +{
> > > + return -ENOPROTOOPT;
> > > +}
> > > +
> > > +static int dh_set_priv_key(struct crypto_akcipher *tfm, const void
> > > *key,
> > > + unsigned int keylen)
> > > +{
> > > + struct dh_params *params = akcipher_tfm_ctx(tfm);
> >
> > dh_get_params?
>
> You mean adding a helper function? OK.
Not adding, but using your helper function -- why do you have it there in the
first place? :-)
Ciao
Stephan
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