Chapter 1 About Open Problems

Chapter 2 The Past, Evolving Present, and Future of the Discrete Logarithm

Chapter 3 Isogenies in Theory and Praxis

Chapter 4 Another Look at Security Theorems for 1-Key Nested MACs

Chapter 5 Non-extendable 𝔽 q $$\mathbb{F}_{q}$$ -Quadratic Perfect Nonlinear Maps

Chapter 6 Open Problems for Polynomials over Finite Fields and Applications

Chapter 7 Generating Good Span n Sequences Using Orthogonal Functions in Nonlinear Feedback Shift Registers

Chapter 8 Open Problems on the Cross-correlation of m -Sequences

Chapter 9 Open Problems on With-Carry Sequence Generators

Chapter 11 On Semi-bent Functions and Related Plateaued Functions Over the Galois Field 𝔽 2 n $$\mathbb{F}_{2^{n}}$$

Chapter 12 True Random Number Generators

Chapter 13 How to Sign Paper Contracts? Conjectures and Evidence Related to Equitable and Efficient Collaborative Task Scheduling

Chapter 14 Theoretical Parallel Computing Models for GPU Computing

Chapter 15 Membrane Computing: Basics and Frontiers

Chapter 16 A Panorama of Post-quantum Cryptography