This chapter is structured into two sections to facilitate the transition from computational complexity to cryptography. First, we revisit key concepts in computational complexity in order to put forward the most important term “probabilistic polynomial-time algorithms”. Next, we explore cryptography, introducing principles that guide the definitions for usability and security. These explanations aim to clarify the concept of probabilistic polynomial-time algorithms and their role in cryptographic definitions.

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From Computational Complexity to Cryptography: Transition

  • Fuchun Guo,
  • Willy Susilo,
  • Khoa Nguyen,
  • Xiaofeng Chen,
  • Zhen Zhao

摘要

This chapter is structured into two sections to facilitate the transition from computational complexity to cryptography. First, we revisit key concepts in computational complexity in order to put forward the most important term “probabilistic polynomial-time algorithms”. Next, we explore cryptography, introducing principles that guide the definitions for usability and security. These explanations aim to clarify the concept of probabilistic polynomial-time algorithms and their role in cryptographic definitions.