Frederik Armknecht

According to our database, Frederik Armknecht authored at least 107 papers between 2002 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

Practical Light Clients for Committee-Based Blockchains.

Frederik Armknecht, Ghassan Karame, Malcom Mohamed, Christiane Weis

CoRR, 2024

Larger-scale Nakamoto-style Blockchains Don't Necessarily Offer Better Security.

Jannik Albrecht, Sébastien Andreina, Frederik Armknecht, Ghassan Karame, Giorgia Azzurra Marson, Julian Willingmann

Proceedings of the IEEE Symposium on Security and Privacy, 2024

0 Sterne für die Sicherheit: Wie Kundenbewertungen die Bitcoin-Adressen von Darknet-Händlern verraten.

Jochen Schäfer, Christian Müller, Frederik Armknecht

Proceedings of the Sicherheit, 2024

Cryptanalysis of the Record Linkage Protocol used by German Cancer Registries.

Youzhe Heng, Rainer Schnell, Frederik Armknecht

Proceedings of the Sicherheit, 2024

Towards a Cryptographic Model for Wireless Communication.

Frederik Armknecht, Christian Müller

Proceedings of the 21st International Conference on Security and Cryptography, 2024

Buy Crypto, Sell Privacy: Investigating the Cryptocurrency Exchange Evonax.

Alexander Brechlin, Jochen Schäfer, Frederik Armknecht

Proceedings of the IEEE International Conference on Blockchain and Cryptocurrency, 2024

2023

Strengthening Privacy-Preserving Record Linkage using Diffusion.

Frederik Armknecht, Youzhe Heng, Rainer Schnell

Proc. Priv. Enhancing Technol., April, 2023

2022

If You Like Me, Please Don't "Like" Me: Inferring Vendor Bitcoin Addresses From Positive Reviews.

Jochen Schäfer, Christian Müller, Frederik Armknecht

Proc. Priv. Enhancing Technol., 2022

Report: State of the Art Solutions for Privacy Preserving Machine Learning in the Medical Context.

Jasmin Zalonis, Frederik Armknecht, Björn Grohmann, Manuel Koch

CoRR, 2022

Salting as a Countermeasure against Attacks on Privacy Preserving Record Linkage Techniques.

Yanling Chen, Rainer Schnell, Frederik Armknecht, Youzhe Heng

Proceedings of the 15th International Joint Conference on Biomedical Engineering Systems and Technologies, 2022

2021

Outsourcing Proofs of Retrievability.

Frederik Armknecht, Jens-Matthias Bohli, Ghassan Karame, Wenting Li

IEEE Trans. Cloud Comput., 2021

Regulating Storage Overhead in Existing PoW-based Blockchains.

Frederik Armknecht, Jens-Matthias Bohli, Ghassan O. Karame, Wenting Li

Proceedings of the SACMAT '21: The 26th ACM Symposium on Access Control Models and Technologies, 2021

How to Take Over Drones.

Sebastian Plotz, Frederik Armknecht, Christian Bunse

Proceedings of the ASIA CCS '21: ACM Asia Conference on Computer and Communications Security, 2021

Selected Design and Analysis Techniques for Contemporary Symmetric Encryption.

Vasily Mikhalev, Miodrag J. Mihaljevic, Orhun Kara, Frederik Armknecht

Proceedings of the Security of Ubiquitous Computing Systems, 2021

2020

Solving Set Relations with Secure Bloom Filters Keeping Cardinality Private.

Louis Tajan, Dirk Westhoff, Frederik Armknecht

Proceedings of the 17th International Joint Conference on e-Business and Telecommunications, 2020

ProMACs: Progressive and Resynchronizing MACs for Continuous Efficient Authentication of Message Streams.

Frederik Armknecht, Paul Walther, Gene Tsudik, Martin Beck, Thorsten Strufe

Proceedings of the CCS '20: 2020 ACM SIGSAC Conference on Computer and Communications Security, 2020

2019

Privacy implications of room climate data.

Frederik Armknecht, Zinaida Benenson, Philipp Morgner, Christian Müller, Christian Riess

J. Comput. Secur., 2019

Private Set Relations with Bloom Filters for Outsourced SLA Validation.

Louis Tajan, Dirk Westhoff, Frederik Armknecht

IACR Cryptol. ePrint Arch., 2019

Biggest Failures in Security (Dagstuhl Seminar 19451).

Frederik Armknecht, Ingrid Verbauwhede, Melanie Volkamer, Moti Yung

Dagstuhl Reports, 2019

Reverse Fingerprinting.

Christian A. Gorke, Frederik Armknecht

CoRR, 2019

2018

Towards Low Energy Stream Ciphers.

Subhadeep Banik, Vasily Mikhalev, Frederik Armknecht, Takanori Isobe, Willi Meier, Andrey Bogdanov, Yuhei Watanabe, Francesco Regazzoni

IACR Trans. Symmetric Cryptol., 2018

Unsupervised Machine Learning on Encrypted Data.

Angela Jäschke, Frederik Armknecht

IACR Cryptol. ePrint Arch., 2018

Privacy-Preserving Distributed Economic Dispatch Protocol for Smart Grid.

Avikarsha Mandal, Frederik Armknecht, Erik Zenner

Proceedings of the Secure IT Systems - 23rd Nordic Conference, NordSec 2018, Oslo, Norway, 2018

Chains and Whips - An approach to lighweight MACs.

Paul Walther, Stefan Köpsell, Frederik Armknecht, Gene Tsudik, Thorsten Strufe

Proceedings of the 28. Krypto-Tag, 2018

2017

Industrial Feasibility of Private Information Retrieval.

Angela Jäschke, Björn Grohmann, Frederik Armknecht, Andreas Schaad

IACR Cryptol. ePrint Arch., 2017

(Finite) Field Work: Choosing the Best Encoding of Numbers for FHE Computation.

Angela Jäschke, Frederik Armknecht

IACR Cryptol. ePrint Arch., 2017

Cloud Storage File Recoverability.

Christian A. Gorke, Christian Janson, Frederik Armknecht, Carlos Cid

IACR Cryptol. ePrint Arch., 2017

Sharding PoW-based Blockchains via Proofs of Knowledge.

Frederik Armknecht, Jens-Matthias Bohli, Ghassan O. Karame, Wenting Li

IACR Cryptol. ePrint Arch., 2017

SMAUG: Secure Mobile Authentication Using Gestures.

Christian A. Gorke, Frederik Armknecht

CoRR, 2017

Insecure to the touch: attacking ZigBee 3.0 via touchlink commissioning.

Philipp Morgner, Stephan Mattejat, Zinaida Benenson, Christian Müller, Frederik Armknecht

Proceedings of the 10th ACM Conference on Security and Privacy in Wireless and Mobile Networks, 2017

Short Paper: Industrial Feasibility of Private Information Retrieval.

Angela Jäschke, Björn Grohmann, Frederik Armknecht, Andreas Schaad

Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017), 2017

Privacy Implications of Room Climate Data.

Philipp Morgner, Christian Müller, Matthias Ring, Björn M. Eskofier, Christian Riess, Frederik Armknecht, Zinaida Benenson

Proceedings of the Computer Security - ESORICS 2017, 2017

Towards End-to-End Data Protection in Low-Power Networks.

Vasily Mikhalev, Laurent Gomez, Frederik Armknecht, José Márquez

Proceedings of the Computer Security - ESORICS 2017 International Workshops, 2017

Sharing Proofs of Retrievability across Tenants.

Frederik Armknecht, Jens-Matthias Bohli, David Froelicher, Ghassan Karame

Proceedings of the 2017 ACM on Asia Conference on Computer and Communications Security, 2017

2016

On Ciphers that Continuously Access the Non-Volatile Key.

Vasily Mikhalev, Frederik Armknecht, Christian Müller

IACR Trans. Symmetric Cryptol., 2016

Accelerating Homomorphic Computations on Rational Numbers.

Angela Jäschke, Frederik Armknecht

IACR Cryptol. ePrint Arch., 2016

Towards a Unified Security Model for Physically Unclonable Functions.

Frederik Armknecht, Daisuke Moriyama, Ahmad-Reza Sadeghi, Moti Yung

IACR Cryptol. ePrint Arch., 2016

SPORT: Sharing Proofs of Retrievability across Tenants.

Frederik Armknecht, Jens-Matthias Bohli, David Froelicher, Ghassan O. Karame

IACR Cryptol. ePrint Arch., 2016

Side channels in deduplication: trade-offs between leakage and efficiency.

Frederik Armknecht, Colin Boyd, Gareth T. Davies, Kristian Gjøsteen, Mohsen Toorani

IACR Cryptol. ePrint Arch., 2016

Symmetric Cryptography (Dagstuhl Seminar 16021).

Frederik Armknecht, Tetsu Iwata, Kaisa Nyberg, Bart Preneel

Dagstuhl Reports, 2016

Mirror: Enabling Proofs of Data Replication and Retrievability in the Cloud.

Frederik Armknecht, Ludovic Barman, Jens-Matthias Bohli, Ghassan O. Karame

Proceedings of the 25th USENIX Security Symposium, 2016

On the security of the ZigBee Light Link touchlink commissioning procedure.

Christian Müller, Frederik Armknecht, Zinaida Benenson, Philipp Morgner

Proceedings of the Sicherheit 2016: Sicherheit, 2016

Private information retrieval and Searchable Encryption for privacy-preserving multi-client cloud auditing.

Louis Tajan, Dirk Westhoff, Christian A. Reuter, Frederik Armknecht

Proceedings of the 11th International Conference for Internet Technology and Secured Transactions, 2016

2015

On Lightweight Stream Ciphers with Shorter Internal States.

Frederik Armknecht, Vasily Mikhalev

IACR Cryptol. ePrint Arch., 2015

A Guide to Fully Homomorphic Encryption.

Frederik Armknecht, Colin Boyd, Christopher Carr, Kristian Gjøsteen, Angela Jäschke, Christian A. Reuter, Martin Strand

IACR Cryptol. ePrint Arch., 2015

Privacy-preserving email forensics.

Frederik Armknecht, Andreas Dewald

Digit. Investig., 2015

Ripple: Overview and Outlook.

Frederik Armknecht, Ghassan O. Karame, Avikarsha Mandal, Franck Youssef, Erik Zenner

Proceedings of the Trust and Trustworthy Computing - 8th International Conference, 2015

Transparent Data Deduplication in the Cloud.

Frederik Armknecht, Jens-Matthias Bohli, Ghassan O. Karame, Franck Youssef

Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security, 2015

2014

General Impossibility of Group Homomorphic Encryption in the Quantum World.

Frederik Armknecht, Tommaso Gagliardoni, Stefan Katzenbeisser, Andreas Peter

IACR Cryptol. ePrint Arch., 2014

Symmetric Cryptography (Dagstuhl Seminar 14021).

Frederik Armknecht, Helena Handschuh, Tetsu Iwata, Bart Preneel

Dagstuhl Reports, 2014

Hardware Efficient Authentication based on Random Selection.

Frederik Armknecht, Matthias Hamann, Matthias Krause

Proceedings of the Sicherheit 2014: Sicherheit, 2014

Revisiting a Recent Resource-efficient Technique for Increasing the Throughput of Stream Ciphers.

Frederik Armknecht, Vasily Mikhalev

Proceedings of the SECRYPT 2014, 2014

Lightweight Authentication Protocols on Ultra-Constrained RFIDs - Myths and Facts.

Frederik Armknecht, Matthias Hamann, Vasily Mikhalev

Proceedings of the Radio Frequency Identification: Security and Privacy Issues, 2014

An additional protection layer for confidential OSNs posts.

Frederik Armknecht, Manuel Hauptmann, Stefanie Roos, Thorsten Strufe

Proceedings of the IEEE International Conference on Communications, 2014

MoP-2-MoP - Mobile Private Microblogging.

Marius Senftleben, Mihai Bucicoiu, Erik Tews, Frederik Armknecht, Stefan Katzenbeisser, Ahmad-Reza Sadeghi

Proceedings of the Financial Cryptography and Data Security, 2014

On Increasing the Throughput of Stream Ciphers.

Frederik Armknecht, Vasily Mikhalev

Proceedings of the Topics in Cryptology - CT-RSA 2014, 2014

Fourth International Workshop on Trustworthy Embedded Devices (TrustED 2014).

Frederik Armknecht, Jorge Guajardo

Proceedings of the 2014 ACM SIGSAC Conference on Computer and Communications Security, 2014

Outsourced Proofs of Retrievability.

Frederik Armknecht, Jens-Matthias Bohli, Ghassan O. Karame, Zongren Liu, Christian A. Reuter

Proceedings of the 2014 ACM SIGSAC Conference on Computer and Communications Security, 2014

2013

Towards Provably Secure Software Attestation.

Frederik Armknecht, Ahmad-Reza Sadeghi, Steffen Schulz, Christian Wachsmann

IACR Cryptol. ePrint Arch., 2013

Group homomorphic encryption: characterizations, impossibility results, and applications.

Frederik Armknecht, Stefan Katzenbeisser, Andreas Peter

Des. Codes Cryptogr., 2013

Protecting Public OSN Posts from Unintended Access.

Frederik Armknecht, Manuel Hauptmann, Stefanie Roos, Thorsten Strufe

CoRR, 2013

Towards Search on Encrypted Graph Data.

Andreas Kasten, Ansgar Scherp, Frederik Armknecht, Matthias Krause

Proceedings of the Workshop on Society, 2013

A security framework for the analysis and design of software attestation.

Frederik Armknecht, Ahmad-Reza Sadeghi, Steffen Schulz, Christian Wachsmann

Proceedings of the 2013 ACM SIGSAC Conference on Computer and Communications Security, 2013

Third international workshop on trustworthy embedded devices (TrustED 2013).

Frederik Armknecht, Jean-Pierre Seifert

Proceedings of the 2013 ACM SIGSAC Conference on Computer and Communications Security, 2013

2012

Symmetric Cryptography (Dagstuhl Seminar 12031).

Frederik Armknecht, Stefan Lucks, Bart Preneel, Phillip Rogaway

Dagstuhl Reports, 2012

Shift-Type Homomorphic Encryption and Its Application to Fully Homomorphic Encryption.

Frederik Armknecht, Stefan Katzenbeisser, Andreas Peter

Proceedings of the Progress in Cryptology - AFRICACRYPT 2012, 2012

2011

On Constructing Homomorphic Encryption Schemes from Coding Theory.

Frederik Armknecht, Daniel Augot, Ludovic Perret, Ahmad-Reza Sadeghi

IACR Cryptol. ePrint Arch., 2011

A Formalization of the Security Features of Physical Functions.

Frederik Armknecht, Roel Maes, Ahmad-Reza Sadeghi, François-Xavier Standaert, Christian Wachsmann

Proceedings of the 32nd IEEE Symposium on Security and Privacy, 2011

An efficient distributed privacy-preserving recommendation system.

Frederik Armknecht, Thorsten Strufe

Proceedings of the 10th IFIP Annual Mediterranean Ad Hoc Networking Workshop, 2011

The Preimage Security of Double-Block-Length Compression Functions.

Frederik Armknecht, Ewan Fleischmann, Matthias Krause, Jooyoung Lee, Martijn Stam, John P. Steinberger

Proceedings of the Advances in Cryptology - ASIACRYPT 2011, 2011

2010

Memory Leakage-Resilient Encryption Based on Physically Unclonable Functions.

Frederik Armknecht, Roel Maes, Ahmad-Reza Sadeghi, Berk Sunar, Pim Tuyls

Proceedings of the Towards Hardware-Intrinsic Security - Foundations and Practice, 2010

Impossibility Results for RFID Privacy Notions.

Frederik Armknecht, Ahmad-Reza Sadeghi, Alessandra Scafuro, Ivan Visconti, Christian Wachsmann

Trans. Comput. Sci., 2010

Preimage Resistance Beyond the Birthday Bound: Double-Length Hashing Revisited.

Matthias Krause, Frederik Armknecht, Ewan Fleischmann

IACR Cryptol. ePrint Arch., 2010

A Cleaner View on IND-CCA1 Secure Homomorphic Encryption using SOAP.

Frederik Armknecht, Andreas Peter, Stefan Katzenbeisser

IACR Cryptol. ePrint Arch., 2010

Using the Inhomogeneous Simultaneous Approximation Problem for Cryptographic Design.

Frederik Armknecht, Carsten Elsner, Martin Schmidt

IACR Cryptol. ePrint Arch., 2010

On the Minimum Communication Effort for Secure Group Key Exchange.

Frederik Armknecht, Jun Furukawa

Proceedings of the Selected Areas in Cryptography - 17th International Workshop, 2010

Anonymous Authentication for RFID Systems.

Frederik Armknecht, Liqun Chen, Ahmad-Reza Sadeghi, Christian Wachsmann

Proceedings of the Radio Frequency Identification: Security and Privacy Issues, 2010

Robust and Undetectable Steganographic Timing Channels for i.i.d. Traffic.

Yali Liu, Dipak Ghosal, Frederik Armknecht, Ahmad-Reza Sadeghi, Steffen Schulz, Stefan Katzenbeisser

Proceedings of the Information Hiding - 12th International Conference, 2010

On RFID Privacy with Mutual Authentication and Tag Corruption.

Frederik Armknecht, Ahmad-Reza Sadeghi, Ivan Visconti, Christian Wachsmann

Proceedings of the Applied Cryptography and Network Security, 8th International Conference, 2010

2009

Using Merkle's Puzzle for key agreement with low-end devices.

Frederik Armknecht, Dirk Westhoff

Proceedings of the 34th Annual IEEE Conference on Local Computer Networks, 2009

Hide and Seek in Time - Robust Covert Timing Channels.

Yali Liu, Dipak Ghosal, Frederik Armknecht, Ahmad-Reza Sadeghi, Steffen Schulz, Stefan Katzenbeisser

Proceedings of the Computer Security, 2009

Memory Leakage-Resilient Encryption Based on Physically Unclonable Functions.

Frederik Armknecht, Roel Maes, Ahmad-Reza Sadeghi, Berk Sunar, Pim Tuyls

Proceedings of the Advances in Cryptology, 2009

Algebraic Attacks on Stream Ciphers with Gröbner Bases.

Frederik Armknecht, Gwénolé Ars

Proceedings of the Gröbner Bases, Coding, and Cryptography, 2009

2008

Toward dependable networking: secure location and privacy at the link layer.

Alfredo Matos, Rui L. Aguiar, João Girão, Frederik Armknecht

IEEE Wirel. Commun., 2008

A New Approach for Algebraically Homomorphic Encryption.

Frederik Armknecht, Ahmad-Reza Sadeghi

IACR Cryptol. ePrint Arch., 2008

A lifetime-optimized end-to-end encryption scheme for sensor networks allowing in-network processing.

Frederik Armknecht, Dirk Westhoff, Joao Girão, Alban Hessler

Comput. Commun., 2008

A Universally Composable Group Key Exchange Protocol with Minimum Communication Effort.

Jun Furukawa, Frederik Armknecht, Kaoru Kurosawa

Proceedings of the Security and Cryptography for Networks, 6th International Conference, 2008

CPFP: An efficient key management scheme for large scale personal networks.

Shahab Mirzadeh, Rahim Tafazolli, Frederik Armknecht, Jordi Jaen Pallares, Hossam Afifi

Proceedings of the Third International Symposium on Wireless Pervasive Computing, 2008

Secure Multi-Coupons for Federated Environments: Privacy-Preserving and Customer-Friendly.

Frederik Armknecht, Alberto N. Escalante, Hans Löhr, Mark Manulis, Ahmad-Reza Sadeghi

Proceedings of the Information Security Practice and Experience, 2008

An efficient implementation of trusted channels based on openssl.

Frederik Armknecht, Yacine Gasmi, Ahmad-Reza Sadeghi, Patrick Stewin, Martin Unger, Gianluca Ramunno, Davide Vernizzi

Proceedings of the 3rd ACM Workshop on Scalable Trusted Computing, 2008

2007

Non-Manipulable Aggregator Node Election Protocols for Wireless Sensor Networks.

Michael Sirivianos, Dirk Westhoff, Frederik Armknecht, Joao Girão

Proceedings of the 5th International Symposium on Modeling and Optimization in Mobile, 2007

Who Said That? Privacy at Link Layer.

Frederik Armknecht, Joao Girão, Alfredo Matos, Rui L. Aguiar

Proceedings of the INFOCOM 2007. 26th IEEE International Conference on Computer Communications, 2007

2006

Algebraic attacks on certain stream ciphers.

Frederik Armknecht

PhD thesis, 2006

Experimental results on algebraic attacks on stream ciphers.

Frederik Armknecht, Jörg Brandeis, Egor Ilinykh

Proceedings of the Sicherheit 2006: Sicherheit, 2006

Constructing Single- and Multi-output Boolean Functions with Maximal Algebraic Immunity.

Frederik Armknecht, Matthias Krause

Proceedings of the Automata, Languages and Programming, 33rd International Colloquium, 2006

Efficient Computation of Algebraic Immunity for Algebraic and Fast Algebraic Attacks.

Frederik Armknecht, Claude Carlet, Philippe Gaborit, Simon Künzli, Willi Meier, Olivier Ruatta

Proceedings of the Advances in Cryptology - EUROCRYPT 2006, 25th Annual International Conference on the Theory and Applications of Cryptographic Techniques, St. Petersburg, Russia, May 28, 2006

Re-visited: Denial of Service Resilient Access Control for Wireless Sensor Networks.

Frederik Armknecht, Joao Girão, Marc Ph. Stoecklin, Dirk Westhoff

Proceedings of the Security and Privacy in Ad-Hoc and Sensor Networks, 2006

2005

Algebraic Attacks and Annihilators.

Frederik Armknecht

Proceedings of the WEWoRC 2005, 2005

Fault Attacks on Combiners with Memory.

Frederik Armknecht, Willi Meier

Proceedings of the Selected Areas in Cryptography, 12th International Workshop, 2005

Introducing a New Variant of Fast Algebraic Attacks and Minimizing Their Successive Data Complexity.

Frederik Armknecht, Gwénolé Ars

Proceedings of the Progress in Cryptology, 2005

Design Principles for Combiners with Memory.

Frederik Armknecht, Matthias Krause, Dirk Stegemann

Proceedings of the Progress in Cryptology, 2005

2004

Extending the Resynchronization Attack.

Frederik Armknecht, Joseph Lano, Bart Preneel

IACR Cryptol. ePrint Arch., 2004

On the Existence of low-degree Equations for Algebraic Attacks.

Frederik Armknecht

IACR Cryptol. ePrint Arch., 2004

Improving Fast Algebraic Attacks.

Frederik Armknecht

Proceedings of the Fast Software Encryption, 11th International Workshop, 2004

Linearity of the AES Key Schedule.

Frederik Armknecht, Stefan Lucks

Proceedings of the Advanced Encryption Standard - AES, 4th International Conference, 2004

2003

Algebraic Attacks on Combiners with Memory.

Frederik Armknecht, Matthias Krause

Proceedings of the Advances in Cryptology, 2003

2002

A Linearization Attack on the Bluetooth Key Stream Generator.

Frederik Armknecht

IACR Cryptol. ePrint Arch., 2002