Research Reports

Research Reports

[Selected Topics] Trends in Development of Post-Quantum Cryptography

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Last Modified

2023-06-28

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Update Frequency

Not

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Format

PDF



Overview

Summary
Currently, there are two encryption methods that are capable of resisting quantum attacks. The first is quantum cryptography that is based on quantum mechanics, while the other is post-quantum cryptography (PQC) that centers on a new class of hard mathematical problems. At the present stage, the overall benefits provided by PQC surpass those of quantum key distribution (QKD) because the underlying basis of the encryptions enabled by PQC is algorithms that quantum computers cannot break. Furthermore, PQC can be deployed with existing computing equipment. By contrast, QKD faces certain difficulties in terms of the development and setup of the related specialized equipment because quantum technology has yet to reach maturity. A considerable length of time as well as a significant amount of resources are needed to achieve widespread use for QKD.

Table of Contents
1. Rapid Development of Quantum Computers and Its Significant Impact on Security of Existing Encryption Systems
  (1) Symmetric Encryption and Public-key Cryptography as Today’s Primary Encryption Mechanisms
  (2) Physical Properties of Quantum Systems Can Quickly Solve Hard Mathematical Problems

2. Quantum Cryptography and Post-quantum Cryptography as Two Main Quantum-resistant Encryption Technologies
  (1) Quantum Cryptography
  (2) Post-quantum Cryptography
  (3) Major Technology Companies Involved in Relevant Research

3. TRI’s View
  (1) Post-Quantum Cryptography Is Currently Mainstream in Field of Quantum-resistant Encryption
  (2) Focus of Future Development Is on Quantum Encryption in Cloud Environments

<Total Pages:10>





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