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Digital encoding could catch future informants.
Can a booming “crypto-currency” really compete with conventional cash?
A proposed “proof” is probably a bust–but even failed attempts can advance computer science.
The first major conference for the digital currency suggests it is gaining legitimacy, but in a manner disappointing to some early enthusiasts.
New details of the NSA’s capabilities suggest encryption can still be trusted. But more effort is needed to fix problems with how it is used.
Currencies designed to fix perceived flaws in Bitcoin could lead to competition that makes the idea of digital “cryptocurrency” stick.
An alleged robbery suggests Bitcoin—an anonymous, decentralized currency—may need bank-like institutions after all.
The processors in smart phones and tablets leak radio signals that betray the encryption keys used to protect sensitive data.
Cryptography solutions are far-off, but much can be done in the near term, says Whitfield Diffie.
Novel voting technology will be used in a local government election.