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Documents authored by Fetzer, Christof

Document
Invited Talk
DOI: 10.4230/LIPIcs.OPODIS.2025.1
SCONE Confidential Computing Environment: Protecting Applications Against Powerful Adversaries (Invited Talk)

Authors: Christof Fetzer

Published in: LIPIcs, Volume 361, 29th International Conference on Principles of Distributed Systems (OPODIS 2025)

Abstract
Our objective is to protect the code, data, and keys of applications against all users with access to the computer systems. In some domains (e.g., healthcare domain), this must be guaranteed, even if the application is not entirely correct. To simplify the adoption of confidential computing, SCONE transforms cloud-native applications into confidential cloud-native applications running on vanilla Kubernetes clusters. The applications can run on Intel SGX, Intel TDX, and AMD SEV. In the near future, SCONE will also support confidential GPUs. The confidentiality, integrity, and consistency of an application’s data and keys are guaranteed by always keeping the data encrypted, i.e., at rest, in transit, and in use. This enables us to add a protection layer around applications to prevent data loss caused be bugs and backdoors in the application code.
Cite as

Christof Fetzer. SCONE Confidential Computing Environment: Protecting Applications Against Powerful Adversaries (Invited Talk). In 29th International Conference on Principles of Distributed Systems (OPODIS 2025). Leibniz International Proceedings in Informatics (LIPIcs), Volume 361, p. 1:1, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@InProceedings{fetzer:LIPIcs.OPODIS.2025.1,
  author =	{Fetzer, Christof},
  title =	{{SCONE Confidential Computing Environment: Protecting Applications Against Powerful Adversaries}},
  booktitle =	{29th International Conference on Principles of Distributed Systems (OPODIS 2025)},
  pages =	{1:1--1:1},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-409-3},
  ISSN =	{1868-8969},
  year =	{2026},
  volume =	{361},
  editor =	{Arusoaie, Andrei and Onica, Emanuel and Spear, Michael and Tucci-Piergiovanni, Sara},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.OPODIS.2025.1},
  URN =		{urn:nbn:de:0030-drops-251743},
  doi =		{10.4230/LIPIcs.OPODIS.2025.1},
  annote =	{Keywords: trusted execution environments, security}
}
Document
DOI: 10.4230/DagSemProc.08241.1
08241 Abstracts Collection – Transactional Memory : From Implementation to Application

Authors: Christof Fetzer, Tim Harris, Maurice Herlihy, and Nir Shavit

Published in: Dagstuhl Seminar Proceedings, Volume 8241, Transactional Memory : From Implementation to Application (2008)

Abstract
From 08.06. to 13.06.2008, the Dagstuhl Seminar 08241 ``Transactional Memory: From Implementation to Application'' was held in Schloss Dagstuhl – Leibniz Center for Informatics. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Christof Fetzer, Tim Harris, Maurice Herlihy, and Nir Shavit. 08241 Abstracts Collection – Transactional Memory : From Implementation to Application. In Transactional Memory : From Implementation to Application. Dagstuhl Seminar Proceedings, Volume 8241, pp. 1-13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

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@InProceedings{fetzer_et_al:DagSemProc.08241.1,
  author =	{Fetzer, Christof and Harris, Tim and Herlihy, Maurice and Shavit, Nir},
  title =	{{08241 Abstracts Collection – Transactional Memory : From Implementation to Application}},
  booktitle =	{Transactional Memory : From Implementation to Application},
  pages =	{1--13},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8241},
  editor =	{Christof Fetzer and Tim Harris and Maurice Herlihy and Nir Shavit},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08241.1},
  URN =		{urn:nbn:de:0030-drops-17757},
  doi =		{10.4230/DagSemProc.08241.1},
  annote =	{Keywords: Multiprocessors, Multi-core machines, Concurrent Programming, Parallel Programming, Synchronization, Transactional Memory}
}
Document
DOI: 10.4230/DagSemProc.08241.2
08241 Summary – Transactional Memory : From Implementation to Application

Authors: Christof Fetzer, Tim Harris, Maurice Herlihy, and Nir Shavit

Published in: Dagstuhl Seminar Proceedings, Volume 8241, Transactional Memory : From Implementation to Application (2008)

Abstract
A goal of current multiprocessor software design is to introduce parallelism into software applications by allowing operations that do not conflict in accessing memory to proceed concurrently. The key tool in designing concurrent data structures has been the use of locks. Unfortunately, course grained locking is easy to program with, but provides very poor performance because of limited parallelism. Fine-grained lock-based concurrent data structures perform exceptionally well, but designing them has long been recognized as a difficult task better left to experts. If concurrent programming is to become ubiquitous, researchers agree that one must develop alternative approaches that simplify code design and verification.
Cite as

Christof Fetzer, Tim Harris, Maurice Herlihy, and Nir Shavit. 08241 Summary – Transactional Memory : From Implementation to Application. In Transactional Memory : From Implementation to Application. Dagstuhl Seminar Proceedings, Volume 8241, pp. 1-3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)

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@InProceedings{fetzer_et_al:DagSemProc.08241.2,
  author =	{Fetzer, Christof and Harris, Tim and Herlihy, Maurice and Shavit, Nir},
  title =	{{08241 Summary – Transactional Memory : From Implementation to Application}},
  booktitle =	{Transactional Memory : From Implementation to Application},
  pages =	{1--3},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8241},
  editor =	{Christof Fetzer and Tim Harris and Maurice Herlihy and Nir Shavit},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08241.2},
  URN =		{urn:nbn:de:0030-drops-17741},
  doi =		{10.4230/DagSemProc.08241.2},
  annote =	{Keywords: Multiprocessors, Multi-core machines, Concurrent Programming, Parallel Programming, Synchronization, Transactional Memory}
}
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