memset(signature, 0, sizeof(signature));
rsakey_sign(raop->rsakey, signature, sizeof(signature), challenge,
conn->local, conn->locallen, raop->hwaddr, raop->hwaddrlen);
memset(signature, 0, sizeof(signature));
rsakey_sign(raop->rsakey, signature, sizeof(signature), challenge,
conn->local, conn->locallen, raop->hwaddr, raop->hwaddrlen);