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With the increased utilization, the small embedded and IoT devices havebecome an attractive target for sophisticated attacks that can exploit thedevices security critical information and data in malevolent activities. Secureboot and Remote Attestation (RA) techniques verifies the integrity of thedevices software state at boot-time and runtime. Correct implementation andformal verification of these security primitives provide strong securityguarantees and enhance user confidence. The formal verification of thesesecurity primitives is considered challenging, as it involves complex hardwaresoftware interactions, semantics gaps and requires bit-precise reasoning. Toaddress these challenges, this paper presents FVCARE an end to end systemco-verification framework. It also defines the security properties forresilient small embedded systems. FVCARE divides the end to end system coverification problem into two modules: 1) verifying the (bit precise) initialsystem settings, registers, and access control policies by hardwareverification techniques, and 2) verifying the system specification, securityproperties, and functional correctness using source-level software abstractionof the hardware. The evaluation of proposed techniques on SRACARE based systemsdemonstrates its efficacy in security co verification.

FVCARE:Formal Verification of Security Primitives in Resilient Embedded SoCs