Arqit announces Technology Update

About this update from Arqit Quantum Inc.

[{"type":"text","content":"Business improvement through innovation\nLONDON, Dec. 14, 2022 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (Nasdaq: ARQQ, ARQQW) (“Arqit”), a leader in quantum-safe encryption, announces a significant change in its technology strategy, resulting from innovation which is expected to have a positive impact on the company's future financial position and results. Arqit’s technology involves the supply of a lightweight software agent to end point customer devices or cloud machines for the purpose of making encryption keys which are zero trust and computationally secure. As announced by Arqit in May 2022, the proof of this capability was independently assured by the University of Surrey, a GCHQ Accredited Centre of Excellence for Cyber Security, and PA Consulting. As part of the background technology which allows Arqit’s software agent to operate, identical sets of random numbers (\"replicated entropy\") must be delivered securely and frequently to data centres. Arqit invented a quantum satellite protocol to facilitate delivery of replicated entropy, which it believes is unique in achieving delivery with quantum safety. Pending the launch of its satellites, Arqit has been using a terrestrial method of delivering replicated entropy using a set of classical digital hardware and software elements (i.e., not quantum communications), and following further innovation this year, has recently deployed an advanced version of terrestrial delivery. The security of end point encryption keys is as strong with the terrestrial method as it is with the satellite method. Arqit has therefore concluded that it no longer needs to incorporate satellites or the associated ground infrastructure into its core QuantumCloud™ offering in order to deliver a quantum safe product. There is continued demand for quantum satellite delivery of replicated entropy from customers with ultra-secure use requirements, such as government defence departments. To these customers the satellite method offers advantages in sovereign, on-premises control of key agreement and in eavesdropper detection (whereby one knows if an attacker is attempting to eavesdrop even though it cannot successfully steal information). Arqit believes that other attempts to generate security through quantum satellite transmission are flawed, and in its invention of a new set of protocols, it solved those pro...

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