id: 06070163 dt: a an: 06070163 au: Renner, Renato ti: Information security in a quantum world. so: Kotásek, Zdeněk (ed.) et al., Mathematical and engineering methods in computer science. 7th international doctoral workshop, MEMICS 2011, Lednice, Czech Republic, October 14‒16, 2011. Revised selected papers. Berlin: Springer (ISBN 978-3-642-25928-9/pbk). Lecture Notes in Computer Science 7119, 57-62 (2012). py: 2012 pu: Berlin: Springer la: EN cc: ut: ci: li: doi:10.1007/978-3-642-25929-6_5 ab: Summary: It is well known that classical computationally-secure cryptosystems may be susceptible to quantum attacks, i.e., attacks by adversaries able to process quantum information. A prominent example is the RSA public key cryptosystem, whose security is based on the hardness of factoring; it can be broken using a quantum computer running Shor’s efficient factoring algorithm. In this extended abstract, we review an argument which shows that a similar problem can arise even if a cryptosystem provides information-theoretic security. As long as its security analysis is carried out within classical information theory, attacks by quantum adversaries cannot in general be excluded. rv: