Rafael Pass - Theory of Cryptography: 18th International Conference, TCC 2020, Durham, NC, USA, November 16–19, 2020, Proceedings, Part III

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The 18th Theory of Cryptography Conference (TCC 2020) was held virtually during November 1619, 2020. It was sponsored by the International Association for Cryptologic Research (IACR). The general chair of the conference was Alessandra Scafuro.

TCC 2020 was originally planned to be co-located with FOCS 2020 in Durham, North Carolina, USA. Due to the COVID-19 pandemic both events were converted into virtual events, and were held on the same day at the same time. The authors uploaded videos of roughly 20 minutes prior to the conference, and at the conference had a 10-minute window to present a summary of their work and answer questions. The virtual event would not have been possible without the generous help of Kevin and Kay McCurley, and we would like to thank them wholeheartedly.

The conference received 167 submissions, of which the Program Committee (PC) selected 71 for presentation. Each submission was reviewed by at least four PC members. The 39 PC members (including PC chairs), all top researchers in the field, were helped by 226 external reviewers, who were consulted when appropriate. These proceedings consist of the revised version of the 71 accepted papers. The revisions were not reviewed, and the authors bear full responsibility for the content of their papers.

As in previous years, we used Shai Halevis excellent Web-review software, and are extremely grateful to him for writing it, and for providing fast and reliable technical support whenever we had any questions.

This was the 7th year that TCC presented the Test of Time Award to an outstanding paper that was published at TCC at least eight years ago, making a significant contribution to the theory of cryptography, preferably with influence also in other areas of cryptography, theory, and beyond. This year the Test of Time Award Committee selected the following paper, published at TCC 2008: Perfectly-Secure MPC with Linear Communication Complexity by Zuzana Trubini and Martin Hirt. The Award Committee recognized this paper for introducing hyper-invertible matrices to perfectly secure multiparty computation, thus enabling significant efficiency improvements and, eventually, constructions with minimal communication complexity.

We are greatly indebted to many people who were involved in making TCC 2020 a success. A big thanks to the authors who submitted their papers and to the PC members and external reviewers for their hard work, dedication, and diligence in reviewing the papers, verifying the correctness, and in-depth discussions. A special thanks goes to the general chair Alessandra Scafuro and the TCC Steering Committee.