Function esp_idf_svc::sys::mbedtls_ecp_set_public_key

pub unsafe extern "C" fn mbedtls_ecp_set_public_key(
    grp_id: u32,
    key: *mut mbedtls_ecp_keypair,
    Q: *const mbedtls_ecp_point,
) -> i32

\brief Set the public key in a key pair object.

\note This function does not check that the point actually belongs to the given group. Call mbedtls_ecp_check_pubkey() on \p Q before calling this function to check that.

\note This function does not check that the public key matches the private key that is already in \p key, if any. To check the consistency of the resulting key pair object, call mbedtls_ecp_check_pub_priv() after setting both the public key and the private key.

\param grp_id The ECP group identifier. \param key The key pair object. It must be initialized. If its group has already been set, it must match \p grp_id. If its group has not been set, it will be set to \p grp_id. If the public key has already been set, it is overwritten. \param Q The public key to copy. This must be a point on the curve indicated by \p grp_id.

\return \c 0 on success. \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if \p key does not match \p grp_id. \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the operation for the group is not implemented. \return #MBEDTLS_ERR_MPI_ALLOC_FAILED on memory-allocation failure. \return Another negative error code on other kinds of failure.