Post-quantum cryptography is no longer theory: NIST, the EU, OpenSSL and ST are pushing ML-KEM and ML-DSA into embedded and IoT. Here is what changes for TLS, secure boot, OTA and product lifecycle, with concrete trade-offs for MCUs, Linux gateways and compliance.
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ESP-IDF 6.0 changes Picolibc, PSA Crypto, legacy drivers, build workflows and OTA. Here is how to assess risk before upgrading ESP32 firmware in production.
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A practical architecture guide for OTA firmware updates with rollback, A/B partitions, image validation and production-safe embedded device lifecycle management.
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