{"product_id":"digital-product-86","title":"HOPE 26 (2026): \"LIMA - No Vendor, No Cloud, No Trust: Open Source Tamper Attestation for Critical Infrastructure Hardware\" (Download)","description":"\u003cp\u003eJustin T. Knox\u003c\/p\u003e\n\u003cp\u003eSunday 1500 Gramercy Park: LIMA is an open-source attestation system that lets a field device cryptographically prove its sensor readings are authentic and untampered with - over a SCADA network or any network at all. The talk walks the full stack: a Zephyr RTOS firmware node on the nRF52840 signs sensor and accelerometer data with ECDSA-P256 using the chip's onboard CryptoCell-310 hardware security engine, broadcasts 90-byte attested payloads over BLE extended advertising, and delivers them to a blind-relay Rust gateway that verifies every signature without ever holding a private key. A live demo - with a recorded fallback - shows a physical tamper event (a shock to a field device) propagating through the cryptographic chain to a verified alert in about a second. Justin will then cover why the project exists and who it is for (individuals and small operators through to enterprise deployments), and give a walkthrough on how to stand up an example node.\u003cbr\u003e\u003c\/p\u003e","brand":"2600 Magazine","offers":[{"title":"Default Title","offer_id":67592798535735,"sku":null,"price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/3445\/files\/orange_0446dd04-d6df-4735-8721-b271336cf216.png?v=1791168280","url":"https:\/\/store.2600.com\/products\/digital-product-86","provider":"2600 Magazine","version":"1.0","type":"link"}