Practical post-quantum cryptography

Pranjal, Atul Chaturvedi

In this survey we propose to cover the prose of post-quantum cryptography over classical cryptography. We talk about the various cryptographic methods that are being practiced to safeguard our information. The future of secure communication is expected to be the implementation of quantum-safe cryptographic systems, and that in the post-quantum era, the development of post-quantum cryptography is essential for ensuring the security of sensitive data.

Tsuyoshi Takagi

Michele Mosca

Aigerim Kerimbayeva

The rapidly evolving field of post-quantum cryptography necessitates a comprehensive analysis of existing technologies to determine their efficiency and reliability.This study aims to identify the strengths and weaknesses of contemporary approaches and algorithms in post-quantum cryptography, ultimately pinpointing the most effective solutions.To achieve this objective, an analytical comparison of practical post-quantum cryptography systems was conducted, considering key metrics such as security against quantum attacks, computational efficiency, compatibility with existing systems, resistance to various cyber threats, ease of implementation, potential for standardization, and compliance with regulatory requirements.The findings reveal that while numerous approaches and algorithms exist in post-quantum cryptography, the NTRU and SIKE algorithms demonstrate superior efficacy.Additionally, WOTS+, Dilithium, and SABER exhibit promising potential, each possessing unique advantages and disadvantages concerning key size, computation speed, attack resistance, and implementation feasibility.This study offers practical value by providing guidance in the selection and adoption of post-quantum cryptography technologies, thereby contributing to the field's advancement and ensuring robust security in a post-quantum era.

Tsuyoshi Takagi, Tanja Lange

Jency Rubia J, Babitha Lincy R, Ezhil E. Nithila +2 more

Cryptography is an art of hiding the significant data or information with some other codes. It is a practice and study of securing information and communication. Thus, cryptography prevents third party intervention over the data communication. The cryptography technology transforms the data into some other form to enhance security and robustness against the attacks. The thrust of enhancing the security among data transfer has been emerged ever since the need of Artificial Intelligence field came into a market. Therefore, modern way of computing cryptographic algorithm came into practice such as AES, 3DES, RSA, Diffie-Hellman and ECC. These public-key encryption techniques now in use are based on challenging discrete logarithms for elliptic curves and complex factorization. However, those two difficult problems can be effectively solved with the help of sufficient large-scale quantum computer. The Post Quantum Cryptography (PQC) aims to deal with an attacker who has a large-scale quantum computer. Therefore, it is essential to build a robust and secure cryptography algorithm against most vulnerable pre-quantum cryptography methods. That is called ‘Post Quantum Cryptography’. Therefore, the present crypto system needs to propose encryption key and signature size is very large.in addition to careful prediction of encryption/decryption time and amount of traffic over the communication wire is required. The post-quantum cryptography (PQC) article discusses different families of post-quantum cryptosystems, analyses the current status of the National Institute of Standards and Technology (NIST) post-quantum cryptography standardisation process, and looks at the difficulties faced by the PQC community.