Keynote speakers
* Idit Keidar, Technion - Israel Institute of Technology, Israel
* Michael Luby, University of California, Berkeley, USA
* Nancy Lynch, Massachusetts Institute of Technology, USA
* Ronitt Rubinfeld, Massachusetts Institute of Technology, USA
* Paul Spirakis, University of Liverpool, UK
* Jeffrey Ullman, Stanford University, USA

SSS is an international forum for researchers and practitioners in the design and development of distributed systems with a focus on systems that are able to provide guarantees on their structure, performance, and/or security in the face of an adverse operational environment. The symposium encourages submissions of original contributions on fundamental research and practical applications concerning topics in the four symposium tracks:

Track A. Self-stabilizing Systems: Theory and Practice

Self-stabilizing systems; Self-stabilizing protocols and algorithms; Practically-stabilizing systems; Variants of Self-stabilization; Topological Stabilization; Stabilization and self-* properties in hardware, software, and middleware design; Self-stabilizing software defined infrastructure

Track B. Foundations of Concurrent and Distributed Computing

Distributed and concurrent algorithms and data structures; Shared and transactional memory; Synchronization protocols; Distributed graph algorithms; Graph-theoretic concepts for communication networks; Peer-to-peer networks and dynamic networks; High-performance, cluster, cloud, and grid computing; Game theory and economical aspects of distributed computing; Formal methods, validation, verification, and synthesis.

Track C. Mobile and Robot Computing

Self-organization in mobile agents; mobile robots; mobile sensor networks; mobile ad-hoc networks; population protocols; programmable matter; nanoscale robots; biologically-inspired systems; and related new models.

Track D. Fault tolerance, Security, and Privacy

Network security; Privacy; Internet-of-things security; Cloud security; Mobile sensor networks/ad-hoc networks security; Verifiable/fault-tolerant computing; Anomaly and networked malware detection; Blockchain technologies and cryptocurrencies; Byzantine-fault tolerance and distributed consensus protocols; Secure multi-party computation; Applied cryptography.

PAPER SUBMISSION
Papers are to be submitted electronically through EasyChair:
https://easychair.org/conferences/?conf=sss2021

All submissions must conform to the formatting instructions of Springer LNCS series
(see https://www.springer.com/gp/computer-science/lncs/conference-proceedings-guidelines).
Each submission must be in English, in PDF format.

DOUBLE-BLIND REVIEW
All submissions must be anonymous. We will use a somewhat relaxed implementation of double-blind peer review this year: you are free to disseminate your work through arXiv and other online repositories and give presentations on your work as usual. However, please make sure you do not mention your own name or affiliation in the submission, and please do not include obvious references in the text that reveal your identity. A reviewer who has not previously seen the paper should be able to read it without accidentally learning the identity of the authors. Please feel free to ask the PC chairs if you have any questions about the double-blind policy of SSS 2021.

SUBMISSIONS
There are two types of submission: regular paper and brief announcement.

- A regular submission must not exceed 15 pages (including the title, authors, abstract, figures, and references). Additional necessary details for an expert to verify the main claims of the submission may be included in a clearly marked appendix if extra space is needed.

- A brief announcement submission must not exceed 5 pages and should not include any appendix.

Any submission deviating from these guidelines will be rejected without consideration of its merits. It is recommended that a regular submission begins with a succinct statement of the problem being addressed, a summary of the main results or conclusions, a brief explanation of their significance, a brief statement of the key ideas, and a comparison with related work, all tailored to a non-specialist. Technical development of the work, directed to the specialist, should follow. Papers outside of the conference scope will be rejected without review. If requested by the authors on the cover page, a regular submission that is not selected for a regular presentation will also be considered for the brief announcement format. This will not affect the consideration of the paper for a regular presentation.

PUBLICATION
Regular papers and brief announcements will be included in the conference proceedings. Conference proceedings will be published by Springer in the LNCS conference series.

SPECIAL ISSUE
Extended and revised versions of selected papers will be considered for a special issue of Theoretical Computer Science.

PAPER AWARD
Prizes will be given to the best regular paper and best student regular paper. A regular paper is eligible for the best student paper if at least one of its authors is a full-time student at submission time. Authors should clearly indicate whether their submission is eligible to be considered for the best student paper award (e.g., using a \thanks in the title). The PC may decline to confer awards or may split awards.

For further information, please refer to the website: http://www.cse.chalmers.se/~elad/SSS2021/