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Encryption

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  • Encryption is less secure than we thought

    For 65 years, most information-theoretic analyses of cryptographic systems have made a mathematical assumption that turns out to be wrong.

    August 14, 2013
  • Securing the cloud

    A new algorithm solves a major problem with homomorphic encryption, which would let Web servers process data without decrypting it.

    June 10, 2013
  • Making quantum encryption practical

    An MIT team that proposed a new, more-practical scheme for using quantum physics to secure data transmission has now demonstrated it experimentally.

    May 20, 2013
  • Beefing up public-key encryption

    MIT researchers show how to secure widely used encryption schemes against attackers who have intercepted examples of successful decryption.

    February 15, 2013
  • 10-year-old problem in theoretical computer science falls

    Interactive proofs — mathematical games that underlie much modern cryptography — work even if players try to use quantum information to cheat.

    July 31, 2012
  • Hippie days

    How a handful of countercultural scientists changed the course of physics in the 1970s and helped open up the frontier of quantum information.

    June 27, 2011
  • Protecting medical implants from attack

    A new system would jam wireless signals sent to medical implants by unauthorized users.

    June 13, 2011