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DPP: Update Configurator to require same netAccessKey curve to be used

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DPP network introduction requires all devices to use the same curve for
netAccessKey. Enforce that this happens based on hardcoding the curve
based on the first successful configuration object generation if no
explicit configuration of the curve was used.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
This commit is contained in:
Jouni Malinen 2022-03-09 23:08:06 +02:00 • committed by Jouni Malinen
parent 800ae647df
commit 9638452a62
1 changed files with 14 additions and 0 deletions
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14
src/common/dpp.c
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@ -1663,6 +1663,20 @@ skip_groups:
wpa_hexdump_ascii_key(MSG_DEBUG, "DPP: Configuration Object",
wpabuf_head(buf), wpabuf_len(buf));
#ifdef CONFIG_DPP3
if (!auth->conf->net_access_key_curve) {
/* All netAccessKey values used in the network will have to be
* from the same curve for network introduction to work, so
* hardcode the first used netAccessKey curve for consecutive
* operations if there was no explicit configuration of which
* curve to use. */
wpa_printf(MSG_DEBUG,
"DPP: Update Configurator to require netAccessKey curve %s based on first provisioning",
nak_curve->name);
auth->conf->net_access_key_curve = nak_curve;
}
#endif /* CONFIG_DPP3 */
out:
os_free(signed_conn);
wpabuf_free(dppcon);