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Key regen and MQTT fix (#4585)

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* Add public key regen

* Properly label and handle PKI MQTT packets

* Extra debug message to indicate PKI_UNKNOWN_PUBKEY

* Ternary!

* Don't call non-existant function on stm32

* Actually fix STM32 compilation
This commit is contained in:
Jonathan Bennett
2024-08-29 16:28:03 -05:00
committed by GitHub
parent 22454c95c7
commit 5bc17a9911
6 changed files with 62 additions and 25 deletions
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9
src/modules/AdminModule.cpp
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@@ -537,6 +537,15 @@ void AdminModule::handleSetConfig(const meshtastic_Config &c)
case meshtastic_Config_security_tag:
LOG_INFO("Setting config: Security\n");
config.security = c.payload_variant.security;
#if !(MESHTASTIC_EXCLUDE_PKI_KEYGEN) && !(MESHTASTIC_EXCLUDE_PKI)
// We check for a potentially valid private key, and a blank public key, and regen the public key if needed.
if (config.security.private_key.size == 32 && !memfll(config.security.private_key.bytes, 0, 32) &&
(config.security.public_key.size == 0 || memfll(config.security.public_key.bytes, 0, 32))) {
if (crypto->regeneratePublicKey(config.security.public_key.bytes, config.security.private_key.bytes)) {
config.security.public_key.size = 32;
}
}
#endif
owner.public_key.size = config.security.public_key.size;
memcpy(owner.public_key.bytes, config.security.public_key.bytes, config.security.public_key.size);
#if !MESHTASTIC_EXCLUDE_PKI