Several Bitcoin wallet applications have been upgraded following a serious cryptography problem in Android that could allow attackers to steal the virtual currency. Four Android Bitcoin ...

Researchers have solved one aspect of the discrete logarithm problem. This is considered to be one of the 'holy grails' of algorithmic number theory, on which the security of many cryptographic ...

As a graduate student at the Massachusetts Institute of Technology in 1996, Amit Sahai was fascinated by the strange notion of a “zero-knowledge” proof, a type of mathematical protocol for convincing ...

Could your cellphone camera give a boost to cryptography programs that help protect your data? That was the pitch that surfaced in a paper this week from a group of researchers at the University of ...

It’s hard to stand out from the crowd — particularly if you are a single photon in a sea of millions in an optical fiber. Because of that, ultra-secure quantum-encryption systems that encode signals ...