Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Armknecht, Frederik"'
Light clients are gaining increasing attention in the literature since they obviate the need for users to set up dedicated blockchain full nodes. While the literature features a number of light client instantiations, most light client protocols optim
Externí odkaz:
http://arxiv.org/abs/2410.03347
Autor:
Albrecht, Jannik, Andreina, Sebastien, Armknecht, Frederik, Karame, Ghassan, Marson, Giorgia, Willingmann, Julian
Extensive research on Nakamoto-style consensus protocols has shown that network delays degrade the security of these protocols. Established results indicate that, perhaps surprisingly, maximal security is achieved when the network is as small as two
Externí odkaz:
http://arxiv.org/abs/2404.09895
Machine Learning on Big Data gets more and more attention in various fields. Even so privacy-preserving techniques become more important, even necessary due to legal regulations such as the General Data Protection Regulation (GDPR). On the other hand
Externí odkaz:
http://arxiv.org/abs/2201.11406
Software connected to the Internet is an attractive target for attackers: as soon as a security flaw is known, services may be taken under attack. In contrast, software developers release updates to add further features and fix flaws in order to incr
Externí odkaz:
http://arxiv.org/abs/1912.09734
We present SMAUG (Secure Mobile Authentication Using Gestures), a novel biometric assisted authentication algorithm for mobile devices that is solely based on data collected from multiple sensors that are usually installed on modern devices -- touch
Externí odkaz:
http://arxiv.org/abs/1708.04871
Autor:
Armknecht, Frederik
Publikováno v:
Kostenfrei.
Mannheim, Univ., Diss., 2006.
Externí odkaz:
http://nbn-resolving.de/urn:nbn:de:bsz:180-madoc-13523
Group homomorphic encryption represents one of the most important building blocks in modern cryptography. It forms the basis of widely-used, more sophisticated primitives, such as CCA2-secure encryption or secure multiparty computation. Unfortunately
Externí odkaz:
http://arxiv.org/abs/1401.2417
The design of secure and usable access schemes to personal data represent a major challenge of online social networks (OSNs). State of the art requires prior interaction to grant access. Sharing with users who are not subscribed or previously have no
Externí odkaz:
http://arxiv.org/abs/1309.3647
Autor:
Heng, Youzhe1 (AUTHOR) y.heng@uni-mannheim.de, Armknecht, Frederik1 (AUTHOR), Chen, Yanling2 (AUTHOR), Schnell, Rainer2 (AUTHOR)
Publikováno v:
PLoS ONE. 9/22/2022, Vol. 17 Issue 9, p1-15. 15p.
Publikováno v:
Phsy. Rev. A, 65:022104, 2002
In our model a fixed Hamiltonian acts on the joint Hilbert space of a quantum system and its controller. We show under which conditions measurements, state preparations, and unitary implementations on the system can be performed by quantum operations
Externí odkaz:
http://arxiv.org/abs/quant-ph/0103022