Advances in quantum cryptography

Quantum Cryptography - Advances in computer science may radically alter cryptography

Critical questions raised by Einstein, Podolsky and Rosen (EPR) on locality, reality and completeness inspired many researchers to study quantitatively the difference between quantum physics and classical physics. In time, these researches led naturally to the idea of quantum computing. Unlike classical computers, with quantum computers the computational space increases exponentially with the s...

Quantum Cryptography

Quantum cryptography

This is a chapter on quantum cryptography for the book “A Multidisciplinary Introduction to Information Security” to be published by CRC Press in 2011/2012. The chapter aims to introduce the topic to undergraduate-level and continuing-education students specializing in information and communication technology.

Composability in quantum cryptography

If we combine two secure cryptographic systems, is the resulting system still secure? Answering this question is highly nontrivial and has recently sparked a considerable research effort, in particular, in the area of classical cryptography. A central insight was that the answer to the question is yes, but only within a well-specified composability framework and for carefully chosen security de...

Quantum Cryptography

Quantum Cryptography was born in the early seventies when Stephen Wiesner wrote “Conjugate Coding”, which unfortunately took more than ten years to see the light of print [50]. In the mean time, Charles H. Bennett (who knew of Wiesner’s idea) and Gilles Brassard picked up the subject and brought it to fruition in a series of papers that culminated with the demonstration of an experimental proto...