Home // SECURWARE 2018, The Twelfth International Conference on Emerging Security Information, Systems and Technologies // View article
Authors:
Stefan Rass
Peter Schartner
Jasmin Wachter
Keywords: Quantum Cryptography; Randomness Substitution Attack; Random number generation; Security; Authentication
Abstract:
Random numbers are an important ingredient in cryptographic applications, whose importance is often underestimated. For example, various protocols hinge on the requirement of using numbers only once and never again (most prominently, the one-time pad), or rest on a certain minimal entropy of a random quantity. Quantum random number generators can help fulfilling such requirements, however, they may as well be subject to attacks. Here, we consider what we coin a randomness substitution attack, in which the adversary replaces a good randomness source by another one, which produces duplicate values (over time) and perhaps numbers of low entropy. A binding between a random number and its origin is thus a certificate of quality and security, when upper level applications rest on the good properties of quantum randomness.
Pages: 139 to 142
Copyright: Copyright (c) IARIA, 2018
Publication date: September 16, 2018
Published in: conference
ISSN: 2162-2116
ISBN: 978-1-61208-661-3
Location: Venice, Italy
Dates: from September 16, 2018 to September 20, 2018