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fix transport code usage

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liquidraver committed 2026-03-16 10:58:57 +01:00
1 parent 1223935e21
commit 96dd454c04
1 file changed
+2 -2
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zephcore/helpers/TransportKeyStore.cpp
+2 -2
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@@ -28,8 +28,8 @@ uint16_t TransportKey::calcTransportCode(const mesh::Packet* packet) const {
mbedtls_md_hmac_finish(&ctx, hmac);
mbedtls_md_free(&ctx);
/* Extract first 2 bytes as transport code */
uint16_t code = (hmac[0] << 8) | hmac[1];
/* Extract first 2 bytes as transport code (little-endian, matching Arduino SHA256 finalizeHMAC behavior) */
uint16_t code = (uint16_t)hmac[0] | ((uint16_t)hmac[1] << 8);
if (code == 0) { // reserve codes 0000 and FFFF
code++;
} else if (code == 0xFFFF) {