[gnutls-devel] GnuTLS | Porting HPKE (!1749)

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Norbert Pocs started a new discussion on lib/nettle/hpke/hpke-hkdf.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1749#note_1439436761

> +                           struct ecc_scalar *sk, struct ecc_point *pk)
> +{
> +  int r = 1, counter = 0;
> +  uint8_t *dkp_prk = NULL, *bytes = NULL;
> +  mpz_t z;
> +
> +  mpz_init (z);
> +
> +  dkp_prk = _nettle_labeled_extract_kem (NULL, "dkp_prk", ikm, ikm_len,
> +                                         dhkem);
> +  if (!dkp_prk)
> +    {
> +      r = 0;
> +      goto out;
> +    }
> +  while (ecc_scalar_set((struct ecc_scalar *)dhkem, z))

I wonder why is this line different than the implementation in the nettle PR. What is the story behind this?

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