Interesting example of how to use chains for securing data. Here it appears primarily IOT examples.
US Energy Department Funds Trial of Factom Blockchain to Secure Power Grid in CoinDesk
Factom, one of the earliest companies to pitch blockchains to enterprises, is participating in a U.S. government-funded trial of the technology to protect the national power grid.
Announced Thursday, TFA Labs, an internet-of-things (IoT) security startup, is experimenting with Factom’s protocol to validate that devices on the grid aren’t infected with malware.
Backed by a nearly $200,000 grant from the U.S. Department of Energy (DOE), the project aims to improve the security of millions of such devices.
In some cases, TFA Labs is looking at storing raw data, such as the health and status of devices, on the Factom blockchain. In other cases, the company wants to assign a digital identity to the firmware, or permanent software installed on devices. If the files are manipulated, they’ll produce a cryptographic hash that does not match the digital identity, indicating something is amiss.
“We can store raw data or data hashes of the data,” Dennis Bunfield, CEO of TFA Labs, told CoinDesk. “It’s ideal for IoT device use.” .... '
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