"Indistinguishability obfuscation" is a powerful concept that would yield provably secure versions of every cryptographic system we've ever developed and all those we've been unable to develop. But nobody knows how to put ...
Computer Sciences
Oct 28, 2015
29
1139
(PhysOrg.com) -- An IBM Researcher has solved a thorny mathematical problem that has confounded scientists since the invention of public-key encryption several decades ago. The breakthrough, called "privacy homomorphism," ...
Mathematics
Jun 25, 2009
9
0
By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof communications.
Nanophysics
Jan 31, 2014
2
0
(PhysOrg.com) -- Linguistics researchers working with computer scientists at the University of North Carolina have shown that voice conversations over the Internet, even if they are encrypted, are not as secure as generally ...
Encrypting emails can be tedious, difficult and very confusing. And even for those who have mastered the process, it's useless unless the intended recipient has the correct software to decode the message. A Georgia Institute ...
Software
Jul 3, 2015
5
77
(PhysOrg.com) -- Quantum cryptography, which enables two parties to communicate with each other with unconditional security, has begun to be implemented by some governments, banks, and other corporations with high-security ...
Forget high-speed cameras capturing 100 000 images per second. A research group at Lund University in Sweden has developed a camera that can film at a rate equivalent to five trillion images per second, or events as short ...
Optics & Photonics
Apr 28, 2017
0
134
A team at the University of Glasgow has developed a novel way to generate random numbers by using the randomness inherent in crystal growth. In their paper published in the journal Matter, the group describes using chemistry ...
In this month's special edition of Physics World, focusing on quantum physics, Thomas Jennewein and Brendon Higgins from the Institute for Quantum Computing at the University of Waterloo, Canada, describe how a quantum space ...
Quantum Physics
Feb 28, 2013
8
0
(Phys.org) —A team of researchers at Toshiba Corporation has developed technology that allows up to 64 users to participate in a quantum key distribution (QKD) network with another single user. In their paper published ...
