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The Canberra Times
The Canberra Times
National

New Australian Signals Directorate coin has a secret code on it - can you crack it?

Australian Signals Directorate ASD Australia Rachel Noble Leigh Gordon Royal Australian Mint
Australian Signals Directorate director-general Rachel Noble and Royal Australian Mint CEO Leigh Gordon celebrate the release of the 75th anniversary coin. Picture supplied

A 50 cent coin cloaked in layers of secret code has been released to mark the 75th anniversary of the Australian Signals Directorate, responsible for signals intelligence, cyber warfare and cyber security.

ASD's cryptographic experts collaborated with the Royal Australian Mint to help design the coin, which has four unique layers of code that - if broken - contain special messages about ASD.

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