The second information letter.

Proceedings of the XX International Conference "Siberian Scientific School-seminar" Computer security and cryptography — SIBECRYPT ' 21 " named after G. P. Agibalov

- Abstracts of talks and applications for lectures should be submitted up to
**April 30, 2021.** - Notification of acceptance will be sent before
**June 30, 2021.**

- Novosibirsk State University
- Mathematical Center in Akademgorodok
- Tomsk State University
- Institute of Cryptography, Communications and Informatics (Russian Federation Security Service Federal Academy)
- Russian Federation Cryptography Academy
- Moscow State University

Monday, September 6 — the day of arrival in Novosibirsk.

September 7-9 — plenary lectures, lecture reports, performance concert by the participants, evening in memory of Gennadiy Agibalov

Friday, September 10 — excursion program

Saturday, September 11 — the day of departure from Novosibirsk

The topics of the conference

- theoretical foundations of applied discrete mathematics
- mathematical methods of cryptography
- mathematical methods of steganography
- mathematical foundations of computer security
- mathematical foundations of the reliability of computing and control systems
- applied coding theory
- applied automata theory
- logical design of discrete automata
- mathematical foundations of computer science and programming
- computational methods in discrete mathematics
- mathematical foundations of intelligent systems
- applied graph theory
- historical essays on discrete mathematics and its applications