Sebastian Ramacher

Orcid: 0000-0003-1957-3725

Affiliations:
  • AIT Austrian Institute of Technology, Vienna, Austria


According to our database1, Sebastian Ramacher authored at least 38 papers between 2016 and 2024.

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Timeline

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Bibliography

2024
(Inner-Product) Functional Encryption with Updatable Ciphertexts.
J. Cryptol., March, 2024

One Tree to Rule Them All: Optimizing GGM Trees and OWFs for Post-Quantum Signatures.
IACR Cryptol. ePrint Arch., 2024

2023
Muckle+: End-to-End Hybrid Authenticated Key Exchanges.
IACR Cryptol. ePrint Arch., 2023

Universally Composable NIZKs: Circuit-Succinct, Non-Malleable and CRS-Updatable.
IACR Cryptol. ePrint Arch., 2023

Outsourced Computations Maintaining Confidentiality and Authenticity.
ERCIM News, 2023

Optimizing 0-RTT Key Exchange with Full Forward Security.
Proceedings of the 2023 on Cloud Computing Security Workshop, 2023

Key Management Systems for Large-Scale Quantum Key Distribution Networks.
Proceedings of the 18th International Conference on Availability, Reliability and Security, 2023

Quantum-resistant End-to-End Secure Messaging and Email Communication.
Proceedings of the 18th International Conference on Availability, Reliability and Security, 2023

2022
Privacy-Preserving Authenticated Key Exchange: Stronger Privacy and Generic Constructions.
IACR Cryptol. ePrint Arch., 2022

Issuer-Hiding Attribute-Based Credentials.
IACR Cryptol. ePrint Arch., 2022

Extending Expressive Access Policies with Privacy Features.
Proceedings of the IEEE International Conference on Trust, 2022

KRAKEN: a privacy-preserving data market for authentic data.
Proceedings of the 1st International Workshop on Data Economy, 2022

KRAKEN: A Secure, Trusted, Regulatory-Compliant, and Privacy-Preserving Data Sharing Platform.
Proceedings of the Data Spaces - Design, 2022

2021
Updatable Signatures and Message Authentication Codes.
IACR Cryptol. ePrint Arch., 2021

KRAKEN - Brokerage and Market Platform for Personal Data.
ERCIM News, 2021

Privacy-Preserving eID Derivation to Self-Sovereign Identity Systems with Offline Revocation.
Proceedings of the 20th IEEE International Conference on Trust, 2021

Fine-Grained Forward Secrecy: Allow-List/Deny-List Encryption and Applications.
Proceedings of the Financial Cryptography and Data Security, 2021


2020
Selective end-to-end data-sharing in the cloud.
J. Bank. Financial Technol., 2020

Multi-Party Revocation in Sovrin: Performance through Distributed Trust.
IACR Cryptol. ePrint Arch., 2020

CCA-Secure (Puncturable) KEMs from Encryption With Non-Negligible Decryption Errors.
IACR Cryptol. ePrint Arch., 2020

Lift-and-Shift: Obtaining Simulation Extractable Subversion and Updatable SNARKs Generically.
IACR Cryptol. ePrint Arch., 2020

Privacy-Preserving Analytics for Data Markets Using MPC.
Proceedings of the Privacy and Identity Management: 15th IFIP WG 9.2, 2020

Short-Lived Forward-Secure Delegation for TLS.
Proceedings of the CCSW'20, 2020

2019
Efficient FPGA Implementations of LowMC and Picnic.
IACR Cryptol. ePrint Arch., 2019

I Want to Forget: Fine-Grained Encryption with Full Forward Secrecy in the Distributed Setting.
IACR Cryptol. ePrint Arch., 2019

Feistel Structures for MPC, and More.
IACR Cryptol. ePrint Arch., 2019

Privacy-Preserving eID Derivation for Self-Sovereign Identity Systems.
Proceedings of the Information and Communications Security - 21st International Conference, 2019

Revisiting User Privacy for Certificate Transparency.
Proceedings of the IEEE European Symposium on Security and Privacy, 2019

Linear Equivalence of Block Ciphers with Partial Non-Linear Layers: Application to LowMC.
Proceedings of the Advances in Cryptology - EUROCRYPT 2019, 2019

2018
Generic Double-Authentication Preventing Signatures and a Post-Quantum Instantiation.
IACR Cryptol. ePrint Arch., 2018

Revisiting Proxy Re-Encryption: Forward Secrecy, Improved Security, and Applications.
IACR Cryptol. ePrint Arch., 2018

2017
Improvements to the Linear Layer of LowMC: A Faster Picnic.
IACR Cryptol. ePrint Arch., 2017

Short Double- and N-Times-Authentication-Preventing Signatures from ECDSA and More.
IACR Cryptol. ePrint Arch., 2017

Post-Quantum Zero-Knowledge Proofs for Accumulators with Applications to Ring Signatures from Symmetric-Key Primitives.
IACR Cryptol. ePrint Arch., 2017

Homomorphic Proxy Re-Authenticators and Applications to Verifiable Multi-User Data Aggregation.
IACR Cryptol. ePrint Arch., 2017

Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives.
IACR Cryptol. ePrint Arch., 2017

2016
Digital Signatures from Symmetric-Key Primitives.
IACR Cryptol. ePrint Arch., 2016


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