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Sign plaintext packets in licensed mode (#10969)

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* feat: sign licensed plaintext packets

Preserve and publish identity keys in licensed mode so existing XEdDSA signatures can authenticate plaintext traffic. Sign licensed broadcasts and direct messages when they fit, while keeping PKI encryption disabled and normal routing behavior unchanged.

* fix(security): persist licensed channel sanitation

* fix(security): close licensed migration lifecycle gaps

* fix(security): address licensed signing review feedback

* test: restore signing globals from Unity teardown

* fix(baseui): allow confirmed ham region selection

* fix(baseui): guard region picker validation

* style: trunk fmt

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Austin <vidplace7@gmail.com>
This commit is contained in:
Benjamin Faershtein
2026-07-27 02:57:15 +00:00
committed by GitHub
co-authored by GitHub Ben Meadors Austin
parent 45cb8e7500
commit 1e982fa78c
15 changed files with 576 additions and 49 deletions
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src/graphics/draw/MenuHandler.cpp
+7 -9
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@@ -285,21 +285,19 @@ void menuHandler::LoraRegionPicker(uint32_t duration)
return;
}
// Guard: without a reboot, reconfigure() applies the region directly, so reject
// regions this node can't use up front: unrecognized codes, licensed-only regions,
// and radio hardware mismatches (2.4 GHz vs sub-GHz) - the same checks the admin
// set-config path applies, but side-effect-free: ignoring a menu selection should
// not record a critical error or notify clients. getRadio() used to catch hardware
// mismatches post-reboot only.
const RegionInfo *selectedRegionInfo = getRegion(selectedRegion);
bool hamMode = selectedRegionInfo->code == selectedRegion && selectedRegionInfo->profile &&
selectedRegionInfo->profile->licensedOnly;
// Validate radio compatibility for a prospective Ham region before confirmation.
auto candidateLora = config.lora;
candidateLora.region = selectedRegion;
char regionErr[160];
if (!RadioInterface::checkConfigRegion(candidateLora, regionErr, sizeof(regionErr))) {
char regionErr[160] = {};
if (!RadioInterface::checkConfigRegion(candidateLora, regionErr, sizeof(regionErr), hamMode)) {
LOG_WARN("Ignoring region selection: %s", regionErr);
return;
}
bool hamMode = getRegion(selectedRegion)->profile->licensedOnly;
if (hamMode) {
LOG_INFO("User chose an amateur radio mode region");
pendingRegion = selectedRegion;