'Heartbleed' bug a critical Internet illness

The "Heartbleed" flaw in Internet security is as critical as the name implies and wider spread than first believed. Warnings about the danger exposed early this week reached widening circles on Thursday, with everyone from ...

Explaining perfect forward secrecy

Twitter has announced it is introducing perfect forward secrecy to help users protect their information from spies and cyber-criminals.

Making quantum encryption practical

One of the many promising applications of quantum mechanics in the information sciences is quantum key distribution (QKD), in which the counterintuitive behavior of quantum particles guarantees that no one can eavesdrop on ...

Beefing up public-key encryption

Most financial transactions on the Internet are safeguarded by a cryptographic technique called public-key encryption. Where traditional encryption relies on a single secret key, shared by both sender and recipient, public-key ...

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