Staying A Step Ahead

The video discusses the pressing need for quantum-safe public key cryptosystems, especially for government agencies. It explores the challenges in identifying mathematical problems that remain difficult for quantum computers, emphasizing the complexity and classification of such problems. The discussion highlights the uncertainty in the field of computational complexity and the need for a reliable classification system. The video concludes with the importance of developing cryptographic systems that can be consistently used in the future, particularly in banking and military operations.

Why is there a pressing need for a quantum-safe public key cryptosystem?

• To reduce computational costs

• To ensure data security against classical computers

• To protect against potential threats from quantum computers

• To simplify cryptographic algorithms

What is the main challenge in finding problems suitable for cryptography?

• Classifying problems into known complexity classes

• Identifying problems that are easy for classical computers

• Finding problems that are difficult for both classical and quantum computers

• Ensuring problems are easy for quantum computers

How is the current state of computational complexity described?

• As a complex and poorly understood field

• As a simple classification

• As a well-organized system

• As a solved problem

What is the significance of establishing problems that are difficult for quantum computers?

• To simplify the implementation of cryptosystems

• To reduce the need for cryptographic research

• To ensure long-term security for public key cryptosystems

• To make cryptographic systems more efficient

Why is it challenging to change infrastructure for new cryptosystems?

• Because it is not necessary

• Because it involves significant time and consistency

• Because it requires new hardware

• Because it is costly