The US Department of Defense is developing blockchain solutions to enhance cybersecurity as part of its digital modernization strategy. The blockchain technology is included in the Defense Department's 4-years-long roadmap.

The US Department of Defense published its Digital Modernization strategy focused on technological development within the next 4 years. The document is called "Dod Digital Modernization Strategy: Dod Information Resource Management Strategic Plan FY19-23." The Department lists three main advantages of the blockchain technology:

“Blockchains are a new information technology that inverts the cybersecurity paradigm. First, blockchain networks are trustless: they assume compromise of the network by both insiders and outsiders. Second, blockchains are transparently secure: they do not rely on failure-prone secrets, but rather on a cryptographic data structure that makes tampering both exceptionally difficult and immediately obvious. Finally, blockchain networks are fault tolerant: they align the efforts of honest nodes to reject those that are dishonest. As a result, blockchain networks not only reduce the probability of compromise, but also impose significantly greater costs on an adversary to achieve it.”

According to the document, the research division of the US Department of Defense together with the Defense Advanced Research Projects Agency (DARPA) is currently involved in at least two projects related to blockchain solutions focused on enhancing cybersecurity.

In the framework of the first project, DARPA is experimenting with blockchain technology to build a new or improve an existing communication and financial platform. This platform should be used to maintain communication between units and headquarters, as well as between intelligence officers and the Pentagon.

In the framework of the second project, DARPA is trying to create unbreakable code using the blockchain technology, citing the blockchain's ability to display information about malicious agents who are trying to hack and distort the contents of the database.

Apart from blockchain, The Department of Defense enlists other promising technologies it plans to esplore. The list includes Artificial Intelligence, Big Data Analytics, Evergreen IT approaches, DevSecOps, Hyper-Converged Infrastructure, Serverless or Event-Driven Computing, Software Defined Networking (SDN), Cryptographic Modernization, Quantum Computing, Internet of Things (IoT), 5G, Internet Protocol version 6 (IPv6), Passive Optical Network (PON), and Zero Trust Security.

In December 2018, the US Department of Defense noted that blockchain implementation could help to act in emergency situations, for example, in case of natural disasters, and improve the supply chain.