public_key=

static VALUE
ossl_x509req_set_public_key(VALUE self, VALUE key)
{
    X509_REQ *req;
    EVP_PKEY *pkey;

    GetX509Req(self, req);
    pkey = GetPKeyPtr(key); /* NO NEED TO DUP */
    if (!X509_REQ_set_pubkey(req, pkey)) {
        ossl_raise(eX509ReqError, NULL);
    }

    return key;
}