Johnson Controls Tyco IP Holdings Llp

Sreekesh Sreelal

Nidhi Sharma

Pushpendra Singh Kharsan

Sumit K Jha

A method includes storing a golden copy of a device tree binary of a system in a trusted execution environment, identifying whether one or more parameters of a running copy of a device tree binary of the system are different from corresponding parameters of the golden copy by comparing the running copy with the golden copy, and performing a corrective action responsive to an indication that at least one of the one or more parameters of the running copy are different from the corresponding parameters of the golden copy.

Systems and methods for monitoring attacks to devices

A building device of a building includes or is in communication with a processing circuit configured to store one or more files, each of the one or more files comprising instructions and a ledger, the ledger comprising information describing at least one of the one or more files. The processing circuit is configured to verify the one or more files by retrieving a root ledger from storage of the processing circuit, wherein the root ledger comprises information based on one or more characteristics of a blockchain, reassembling the blockchain based on the ledger of each of the one or more files, verifying the blockchain with the root ledger, and verifying the one or more files with the verified blockchain. The processing circuit is configured to execute the instructions of the one or more files in response to a determination that the one or more files are verified.

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Pune, India

Sreekesh Sreelal