gnutls_hpke_derive_keypair3
Api function
Usage
#include <gnutls/hpke.h>
int gnutls_hpke_derive_keypair(gnutls_hpke_kem_t kem, const gnutls_datum_t * ikm, gnutls_privkey_t privkey, gnutls_pubkey_t pubkey);
Arguments
- gnutls_hpke_kem_t kem
-
The KEM algorithm to use for key pair generation.
- const gnutls_datum_t * ikm
-
A pointer to a gnutls_datum_t structure containing the input key material (IKM) to be used for key pair generation.
- gnutls_privkey_t privkey
-
An initialized private key.
- gnutls_pubkey_t pubkey
-
An initialized public key.
Overview
This function derives a key pair (private key and public key) for the specified KEM algorithm from the provided input key material ( ikm ).
ikm is used as a seed for the key generation process, allowing for deterministic key pair generation if the same IKM is used. The function checks that the provided parameters are valid and that the KEM algorithm is supported.
ikm should be a non-empty byte string that serves as the seed for key pair generation.
Returns
0 on success, or a negative error code on failure
Since
3.8.13