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Cryptography number theory and ai security

Foundations and applications

This book is 100% completeLast updated on 2026-06-03

Every secure communication begins with mathematics.

Every modern encryption system relies on number theory.

Every intelligent cyber defense increasingly depends on Artificial Intelligence.

But what happens when these three worlds converge?

In Cryptography, Number Theory, and AI Security, Anshuman Mishra takes readers on a journey from the mathematical foundations of encryption to the cutting-edge frontier of AI-powered cybersecurity.

Explore prime numbers, RSA, elliptic curves, blockchain security, machine learning for threat detection, homomorphic encryption, federated learning, adversarial AI, and post-quantum cryptography.

Discover how mathematics and machine intelligence work together to secure the digital world.

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About the Book

Cryptography, Number Theory, and AI Security

Foundations and Applications

In an era where digital systems control communication, finance, healthcare, governance, and national infrastructure, security has become one of the defining challenges of the twenty-first century. Every secure message, online transaction, digital identity, blockchain network, and intelligent system depends upon a powerful combination of mathematics, cryptography, and computational intelligence.

Cryptography, Number Theory, and AI Security: Foundations and Applications provides a comprehensive exploration of the mathematical foundations of cybersecurity and the transformative role of Artificial Intelligence in modern security systems.

At the heart of contemporary cryptographic systems lies number theory—a branch of mathematics once regarded as purely theoretical but now essential for securing the world's digital infrastructure. Concepts such as prime numbers, modular arithmetic, discrete logarithms, elliptic curves, and computational hardness assumptions form the basis of secure communication protocols used across the Internet.

At the same time, Artificial Intelligence is reshaping cybersecurity. Machine learning systems can detect intrusions, identify malware, prevent fraud, analyze threats, and automate defense mechanisms. Yet AI also introduces new risks, including adversarial attacks, model poisoning, data leakage, and automated cyber offensives.

This book bridges these interconnected domains and presents a unified framework for understanding:

• Mathematical Foundations of Cryptography

• Number Theory for Security Applications

• Classical and Modern Encryption Systems

• RSA, AES, Diffie–Hellman, and Elliptic Curve Cryptography

• Digital Signatures and Public Key Infrastructure

• Cryptographic Protocols and Security Models

• Blockchain and Distributed Ledger Security

• Artificial Intelligence in Cyber Defense

• Machine Learning for Intrusion Detection

• AI-Powered Malware and Fraud Detection

• Homomorphic Encryption and Privacy-Preserving AI

• Federated Learning and Secure Computation

• Differential Privacy and Secure Machine Learning

• Post-Quantum and Quantum-Safe Cryptography

• Future Challenges in AI-Centric Cybersecurity

Through mathematical rigor, practical applications, real-world case studies, and emerging research directions, readers gain a deep understanding of how mathematics and intelligent algorithms combine to protect modern digital ecosystems.

Who Should Read This Book?

• Computer Science and Cybersecurity Students

• Mathematics and Cryptography Learners

• Artificial Intelligence Researchers

• AI and Machine Learning Engineers

• Cybersecurity Professionals

• Ethical Hackers and Security Analysts

• Blockchain and FinTech Developers

• Researchers in Post-Quantum Cryptography

• UGC-NET, GATE, and Competitive Examination Aspirants

What Makes This Book Unique?

✔ Integrates Cryptography, Number Theory, and AI Security in one framework

✔ Explains mathematical concepts through practical security applications

✔ Covers both classical cryptographic methods and modern AI-driven defense systems

✔ Includes emerging topics such as federated learning, differential privacy, and post-quantum cryptography

✔ Suitable for academic study, professional development, and research exploration

✔ Bridges theory, implementation, and real-world cybersecurity challenges

This book serves as a comprehensive roadmap for understanding how mathematics, cryptography, and artificial intelligence collectively shape the future of digital security.

Author

About the Author

Anshuman Mishra

Anshuman Kumar Mishra, M.Tech (Computer Science) Assistant Professor, Doranda College, Ranchi University

Prolific Author of 50+ Books on AI, Machine Learning & Computer Science | 20+ Years Experience

Anshuman Kumar Mishra is a dedicated educator, researcher, and highly prolific author with over 20 years of experience in Computer Science and Information Technology. Holding an M.Tech in Computer Science from BIT Mesra, he brings a rare combination of academic depth and practical teaching expertise.

Currently serving as Assistant Professor at Doranda College under Ranchi University, he has mentored thousands of students, helping them build strong foundations in programming, data science, and artificial intelligence. His student-centric teaching style emphasizes conceptual clarity, hands-on practice, and real-world application.

Anshuman is a prolific author with more than 50 books published across a wide spectrum of computer science and emerging technology domains. From foundational programming languages to advanced topics in Artificial Intelligence, Machine Learning, Reinforcement Learning, Decision Theory, and Computer Vision — his books are widely appreciated by students, educators, and professionals for their clear explanations, strong theoretical foundation, and practical approach.

His extensive body of work reflects his deep commitment to making complex subjects accessible and meaningful for learners at all levels. He is particularly recognized for creating well-structured learning paths that help readers progress from beginner to advanced levels with confidence.

Driven by the mission to democratize quality technical education, Anshuman continues to write and update books that bridge the gap between academic theory and industry practice.

When not teaching or writing, he actively follows and explores new developments in AI, Quantum Machine Learning, and Ethical Intelligence systems.

Contents

Table of Contents

Book Title: Cryptography, Number Theory, and AI Security: Foundations and Applications ________________________________________ Table of Contents Chapter 1: Introduction to Cryptography, Number Theory, and AI Security 1-24 1.1 The Evolution of Cryptography 1.2 Importance of Number Theory in Cryptography 1.3 Modern Threats and AI in Cybersecurity 1.4 The Convergence of Mathematics and Machine Intelligence 1.5 Applications in Real-World Security ________________________________________ Chapter 2: Basics of Number Theory for Cryptography 25-52 2.1 Divisibility, Primes, and Greatest Common Divisors 2.2 Fundamental Theorem of Arithmetic 2.3 Modular Arithmetic and Congruences 2.4 Euler’s Totient Function and Fermat’s Little Theorem 2.5 Chinese Remainder Theorem (CRT) 2.6 Quadratic Residues and Legendre Symbol 2.7 Computational Aspects of Number Theory ________________________________________ Chapter 3: Classical Cryptography 53-72 3.1 Substitution and Transposition Ciphers 3.2 Monoalphabetic and Polyalphabetic Systems 3.3 Affine, Caesar, and Vigenère Ciphers 3.4 Stream vs Block Ciphers 3.5 Cryptanalysis of Classical Systems ________________________________________ Chapter 4: Modern Cryptographic Systems 73-97 4.1 Symmetric Key Cryptography 4.2 DES, AES, and Advanced Block Ciphers 4.3 Public-Key Cryptography Principles 4.4 RSA Algorithm and Security Foundations 4.5 Diffie–Hellman Key Exchange 4.6 Elliptic Curve Cryptography (ECC) 4.7 Digital Signatures and Certificates ________________________________________ Chapter 5: Advanced Number Theory in Cryptography 98-117 5.1 Prime Number Generation and Testing 5.2 Probabilistic Algorithms: Miller-Rabin & AKS 5.3 Discrete Logarithm Problem (DLP) 5.4 Integer Factorization and Security 5.5 Lattices and Post-Quantum Cryptography 5.6 Mathematical Proofs in Cryptographic Protocols ________________________________________ Chapter 6: Cryptographic Protocols and Security Models 118-141 6.1 Authentication and Key Exchange Protocols 6.2 Hash Functions and Message Integrity 6.3 Zero-Knowledge Proofs 6.4 Digital Certificates and PKI 6.5 Blockchain and Distributed Ledger Security 6.6 Quantum-Safe Cryptography ________________________________________ Chapter 7: Artificial Intelligence in Cybersecurity 142-166 7.1 Introduction to AI in Security 7.2 Machine Learning for Intrusion Detection Systems (IDS) 7.3 Deep Learning in Malware Detection 7.4 AI for Phishing and Fraud Detection 7.5 Reinforcement Learning for Threat Response 7.6 Adversarial AI Attacks and Defenses 7.7 Case Studies: AI-Driven Cyber Defense Systems ________________________________________ Chapter 8: Cryptography Meets AI Security 167-183 8.1 AI in Cryptanalysis and Breaking Ciphers 8.2 Homomorphic Encryption for Privacy-Preserving AI 8.3 Federated Learning and Secure Data Sharing 8.4 Differential Privacy and Secure AI Models 8.5 Blockchain + AI Security Models 8.6 Secure Multiparty Computation with AI 8.7 AI-Powered Quantum Cryptography ________________________________________ Chapter 9: Applications and Case Studies 184-195 9.1 AI-Driven Secure Communication 9.2 Cryptography in Internet of Things (IoT) Security 9.3 AI for Financial and Banking Security 9.4 Cybersecurity in Cloud and Edge Computing 9.5 National Security and AI-Powered Encryption 9.6 Case Studies: Real-World Breaches and AI Defense ________________________________________ Chapter 10: Future Directions and Challenges 196-209 10.1 The Future of Cryptography in a Quantum World 10.2 AI Security: Trends and Open Problems 10.3 The Role of Post-Quantum Cryptography 10.4 Legal, Ethical, and Policy Implications 10.5 Emerging Research Directions 10.6 Towards a Secure AI-Centric World

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