NETWORK SECURITY

FEATURE

How to quantum secure optical networks

The introduction of large-scale quantum computers would render almost all currently used key-exchange protocols useless. For optical fibre networks, quantum key distribution (QKD) seems to be the natural answer to this challenge, but it too has its limitations. On the other hand, there are alternatives that potentially could provide a relatively seamless replacement to current key-exchange algorithms.

FEATURE

A quantum of security

If you think practical quantum computers arriving within 5-10 years means you don’t need to worry about their impact on communication network security yet, you’re in for a nasty surprise. That’s according to Jane Melia, vice president of strategic business development at Canberra, Australia-headquartered quantum security system vendor QuintessenceLabs. Adopting new security technology takes at least two years, and that protection must often continue for more than five years, so ‘this deadline is actually very close indeed’, she warns.

FEATURE

Securing the cloud networking supernova

Cloud services have burst upon us like a supernova, simultaneously expanding and changing network traffic patterns. The light of a supernova is also a metaphor for freedom. Like clouds floating in the sky, the internet cloud frees users from old restraints. Business users and individuals can access cloud computing and applications on-demand, at any time, from anywhere, for as much as they want and as long as they want, and pay only for what they use. It also frees IT departments from maintaining a physical infrastructure and dealing with software updates and bug fixes.

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Will quantum-resistant encryption be enabled by quantum technology or mathematics? Helmut Griesser examines technologies for the post-quantum world

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The increasing value of optical fibre assets in metropolitan areas is shaping the business models of companies that provide access to them, finds Andy Extance

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As 2017 draws to a close, Scott Wilkinson looks ahead to what’s in store for the optical communications industry in 2018

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An English city with a world-class 5G test-bed is about to make telecommunications history, reports Rebecca Pool