163 citations · 408 across the 8 of their papers we have counts for
8 papers
Effects of Quantization on the Multiple-Round Secret-Key Capacity
Onur Günlü, Ueli Maurer, João Ribeiro
We consider the strong secret key (SK) agreement problem for the satellite communication setting, where a satellite chooses a common binary phase shift keying modulated input for t…
Composable and Finite Computational Security of Quantum Message Transmission
Fabio Banfi, Ueli Maurer, Christopher Portmann +1
Recent research in quantum cryptography has led to the development of schemes that encrypt and authenticate quantum messages with computational security. The security definitions u…
Toward an Algebraic Theory of Systems
Christian Matt, Ueli Maurer, Christopher Portmann +2
We propose the concept of a system algebra with a parallel composition operation and an interface connection operation, and formalize composition-order invariance, which postulates…
Causal Boxes: Quantum Information-Processing Systems Closed under Composition
Christopher Portmann, Christian Matt, Ueli Maurer +2
Complex information-processing systems, for example quantum circuits, cryptographic protocols, or multi-player games, are naturally described as networks composed of more basic inf…
Abstract Storage Devices
Robert Koenig, Ueli Maurer, Stefano Tessaro
A quantum storage device differs radically from a conventional physical storage device. Its state can be set to any value in a certain (infinite) state space, but in general every…
Locking of accessible information and implications for the security of quantum cryptography
Robert Koenig, Renato Renner, Andor Bariska +1
The unconditional security of a quantum key distribution protocol is often defined in terms of the accessible information, that is, the maximum mutual information between the distr…