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After eighty years of Navy cryptography the question is where to next?

Keeping secrets seems to be hardwired into human DNA; the use of cryptography – literally ‘hidden writing’ – as a means of secure communication arguably dates back nearly 4,000 years to late eleventh dynasty Egypt, and it has been in widespread use in one form or another ever since. The US Navy has been using it for over 80 years, and will as Gareth Evans finds out, in all likelihood be relying on it for many years to come.

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