Sebastian Ramacher

Publication Activity (10 Years)

Years Active: 2016-2024
Publications (10 Years): 59

Top Topics

Digital Signature

Top Venues

IACR Cryptol. ePrint Arch.

Publications

Reyhaneh Rabaninejad, Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig, Antonis Michalas
Attribute-Based Threshold Issuance Anonymous Counting Tokens and Its Application to Sybil-Resistant Self-Sovereign Identity. IACR Cryptol. ePrint Arch. 2024 (2024)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
(Inner-Product) Functional Encryption with Updatable Ciphertexts. J. Cryptol. 37 (1) (2024)
Lena Heimberger, Tobias Hennerbichler, Fredrik Meisingseth, Sebastian Ramacher, Christian Rechberger
OPRFs from Isogenies: Designs and Analysis. AsiaCCS (2024)
Carsten Baum, Ward Beullens, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl
One Tree to Rule Them All: Optimizing GGM Trees and OWFs for Post-Quantum Signatures. IACR Cryptol. ePrint Arch. 2024 (2024)
Sonja Bruckner, Sebastian Ramacher, Christoph Striecks
Muckle+: End-to-End Hybrid Authenticated Key Exchanges. PQCrypto (2023)
Christoph Döberl, Wolfgang Eibner, Simon Gärtner, Manuela Kos, Florian Kutschera, Sebastian Ramacher
Quantum-resistant End-to-End Secure Messaging and Email Communication. ARES (2023)
Paul James, Stephan Laschet, Sebastian Ramacher, Luca Torresetti
Key Management Systems for Large-Scale Quantum Key Distribution Networks. ARES (2023)
Christian Göth, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi, Alexander Zikulnig
Optimizing 0-RTT Key Exchange with Full Forward Security. CCSW@CCS (2023)
Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Florian Wohner
Outsourced Computations Maintaining Confidentiality and Authenticity. ERCIM News 2023 (133) (2023)
Behzad Abdolmaleki, Noemi Glaeser, Sebastian Ramacher, Daniel Slamanig
Universally Composable NIZKs: Circuit-Succinct, Non-Malleable and CRS-Updatable. IACR Cryptol. ePrint Arch. 2023 (2023)
Sonja Bruckner, Sebastian Ramacher, Christoph Striecks
Muckle+: End-to-End Hybrid Authenticated Key Exchanges. IACR Cryptol. ePrint Arch. 2023 (2023)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
(Inner-Product) Functional Encryption with Updatable Ciphertexts. IACR Cryptol. ePrint Arch. 2022 (2022)
Sebastian Ramacher, Daniel Slamanig, Andreas Weninger
Privacy-Preserving Authenticated Key Exchange: Stronger Privacy and Generic Constructions. IACR Cryptol. ePrint Arch. 2022 (2022)
Stefan More, Sebastian Ramacher, Lukas Alber, Marco Herzl
Extending Expressive Access Policies with Privacy Features. CoRR (2022)
Stefan More, Sebastian Ramacher, Lukas Alber, Marco Herzl
Extending Expressive Access Policies with Privacy Features. TrustCom (2022)
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin
Issuer-Hiding Attribute-Based Credentials. IACR Cryptol. ePrint Arch. 2022 (2022)
Karl Koch, Stephan Krenn, Tilen Marc, Stefan More, Sebastian Ramacher
KRAKEN: a privacy-preserving data market for authentic data. DE@CoNEXT (2022)
Andreas Abraham, Juan Carlos Perez Braun, Sebastian Ramacher
KRAKEN - Brokerage and Market Platform for Personal Data. ERCIM News 2021 (126) (2021)
Omar Veledar, Eric Armengaud, Leo Happ Botler, Violeta Damjanovic-Behrendt, Christian Derler, Stefan Jaksic, Lukas Krammer, Christian Lettner, Georg Macher, Stefan Marksteiner, Andreas Martin, Martin Matschnig, Peter Priller, Sebastian Ramacher, Kay Römer, Christoph Schmittner, Christina Tiefnig, Heribert Vallant, Heinz Weiskirchner, Mario Drobics
Steering Drivers of Change: Maximising Benefits of Trustworthy IoT. EuroSPI (2021)
David Derler, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
Fine-Grained Forward Secrecy: Allow-List/Deny-List Encryption and Applications. Financial Cryptography (2) (2021)
Lukas Helminger, Daniel Kales, Sebastian Ramacher, Roman Walch
Multi-party Revocation in Sovrin: Performance through Distributed Trust. CT-RSA (2021)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
Updatable Signatures and Message Authentication Codes. IACR Cryptol. ePrint Arch. 2021 (2021)
Sebastian Ramacher, Daniel Slamanig, Andreas Weninger
Privacy-Preserving Authenticated Key Exchange: Stronger Privacy and Generic Constructions. ESORICS (2) (2021)
Andreas Abraham, Karl Koch, Stefan More, Sebastian Ramacher, Miha Stopar
Privacy-Preserving eID Derivation to Self-Sovereign Identity Systems with Offline Revocation. TrustCom (2021)
Karl Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher
Privacy-preserving Analytics for Data Markets using MPC. CoRR (2021)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
Updatable Signatures and Message Authentication Codes. Public Key Cryptography (1) (2021)
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin
Issuer-Hiding Attribute-Based Credentials. CANS (2021)
Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig
Lift-and-Shift: Obtaining Simulation Extractable Subversion and Updatable SNARKs Generically. CCS (2020)
Lukas Alber, Stefan More, Sebastian Ramacher
Short-Lived Forward-Secure Delegation for TLS. CCSW@CCS (2020)
Lukas Alber, Stefan More, Sebastian Ramacher
Short-Lived Forward-Secure Delegation for TLS. CoRR (2020)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
CCA-Secure (Puncturable) KEMs from Encryption with Non-Negligible Decryption Errors. ASIACRYPT (1) (2020)
Felix Hörandner, Sebastian Ramacher, Simon Roth
Selective end-to-end data-sharing in the cloud. J. Bank. Financial Technol. 4 (1) (2020)
Lukas Helminger, Daniel Kales, Sebastian Ramacher, Roman Walch
Multi-Party Revocation in Sovrin: Performance through Distributed Trust. IACR Cryptol. ePrint Arch. 2020 (2020)
Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig
Lift-and-Shift: Obtaining Simulation Extractable Subversion and Updatable SNARKs Generically. IACR Cryptol. ePrint Arch. 2020 (2020)
Karl Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher
Privacy-Preserving Analytics for Data Markets Using MPC. Privacy and Identity Management (2020)
Daniel Kales, Sebastian Ramacher, Christian Rechberger, Roman Walch, Mario Werner
Efficient FPGA Implementations of LowMC and Picnic. CT-RSA (2020)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
CCA-Secure (Puncturable) KEMs from Encryption With Non-Negligible Decryption Errors. IACR Cryptol. ePrint Arch. 2020 (2020)
Felix Hörandner, Sebastian Ramacher, Simon Roth
Selective End-To-End Data-Sharing in the Cloud. ICISS (2019)
Martin R. Albrecht, Lorenzo Grassi, Léo Perrin, Sebastian Ramacher, Christian Rechberger, Dragos Rotaru, Arnab Roy, Markus Schofnegger
Feistel Structures for MPC, and More. ESORICS (2) (2019)
Itai Dinur, Daniel Kales, Angela Promitzer, Sebastian Ramacher, Christian Rechberger
Linear Equivalence of Block Ciphers with Partial Non-Linear Layers: Application to LowMC. EUROCRYPT (1) (2019)
David Derler, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
I Want to Forget: Fine-Grained Encryption with Full Forward Secrecy in the Distributed Setting. IACR Cryptol. ePrint Arch. 2019 (2019)
Martin R. Albrecht, Lorenzo Grassi, Léo Perrin, Sebastian Ramacher, Christian Rechberger, Dragos Rotaru, Arnab Roy, Markus Schofnegger
Feistel Structures for MPC, and More. IACR Cryptol. ePrint Arch. 2019 (2019)
Andreas Abraham, Felix Hörandner, Olamide Omolola, Sebastian Ramacher
Privacy-Preserving eID Derivation for Self-Sovereign Identity Systems. ICICS (2019)
Daniel Kales, Sebastian Ramacher, Christian Rechberger, Roman Walch, Mario Werner
Efficient FPGA Implementations of LowMC and Picnic. IACR Cryptol. ePrint Arch. 2019 (2019)
Daniel Kales, Olamide Omolola, Sebastian Ramacher
Revisiting User Privacy for Certificate Transparency. EuroS&P (2019)
David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
Revisiting Proxy Re-encryption: Forward Secrecy, Improved Security, and Applications. Public Key Cryptography (1) (2018)
David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
Revisiting Proxy Re-Encryption: Forward Secrecy, Improved Security, and Applications. IACR Cryptol. ePrint Arch. 2018 (2018)
David Derler, Sebastian Ramacher, Daniel Slamanig
Post-Quantum Zero-Knowledge Proofs for Accumulators with Applications to Ring Signatures from Symmetric-Key Primitives. PQCrypto (2018)
David Derler, Sebastian Ramacher, Daniel Slamanig
Short Double- and N-Times-Authentication-Preventing Signatures from ECDSA and More. EuroS&P (2018)
David Derler, Sebastian Ramacher, Daniel Slamanig
Generic Double-Authentication Preventing Signatures and a Post-quantum Instantiation. ProvSec (2018)
David Derler, Sebastian Ramacher, Daniel Slamanig
Generic Double-Authentication Preventing Signatures and a Post-Quantum Instantiation. IACR Cryptol. ePrint Arch. 2018 (2018)
Melissa Chase, David Derler, Steven Goldfeder, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig, Greg Zaverucha
Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives. IACR Cryptol. ePrint Arch. 2017 (2017)
David Derler, Sebastian Ramacher, Daniel Slamanig
Homomorphic Proxy Re-Authenticators and Applications to Verifiable Multi-User Data Aggregation. IACR Cryptol. ePrint Arch. 2017 (2017)
David Derler, Sebastian Ramacher, Daniel Slamanig
Short Double- and N-Times-Authentication-Preventing Signatures from ECDSA and More. IACR Cryptol. ePrint Arch. 2017 (2017)
David Derler, Sebastian Ramacher, Daniel Slamanig
Homomorphic Proxy Re-Authenticators and Applications to Verifiable Multi-User Data Aggregation. Financial Cryptography (2017)
Melissa Chase, David Derler, Steven Goldfeder, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig, Greg Zaverucha
Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives. CCS (2017)
David Derler, Sebastian Ramacher, Daniel Slamanig
Post-Quantum Zero-Knowledge Proofs for Accumulators with Applications to Ring Signatures from Symmetric-Key Primitives. IACR Cryptol. ePrint Arch. 2017 (2017)
Léo Perrin, Angela Promitzer, Sebastian Ramacher, Christian Rechberger
Improvements to the Linear Layer of LowMC: A Faster Picnic. IACR Cryptol. ePrint Arch. 2017 (2017)
David Derler, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig
Digital Signatures from Symmetric-Key Primitives. IACR Cryptol. ePrint Arch. 2016 (2016)