The service uses Arqit Quantum's QuantumCloud, and is offered on a PaaS basis.

It allows governments and enterprises to protect themselves against "harvest now, decrypt later" attacks.

Arqit claims to be the only company in the world to publish an independent assurance report demonstrating that its software makes keys which are zero trust and computationally secure.

"In partnership with Arqit, we are proud to offer the first symmetric key agreement software (SKAS) service to the Australian market and near-region customers," said AUCloud managing director and co-founder Phil Dawson.

"With our strong commitment to sovereign data protection, we are hugely excited by the potential of AUCloud's sovereign symmetric key agreement software to provide post quantum safety.

"At a time when the public is even more conscious of personal data security and in light of the recent announcement by the Australian Government on its consultation process on their quantum strategy, AUCloud's SKAS will further reduce the risk of data compromise for all Australians.

"Experience providing SKAS to early adopter customers will create even greater Australian leadership in this important and developing market."

Arqit founder, chairman and CEO David Williams said "We are excited to offer Arqit's globally unique software in Australia in partnership with AUCloud.

"Our partnership builds on the huge amount of work Australia is doing in the quantum space and will enable us to deliver significant advantage to sovereign customers."