Cryptography — Mains Questions

Discuss the significance of asymmetric-key cryptography in securing modern digital communication. How does it address the limitations of symmetric-key systems, and what challenges does it face in the era of quantum computing?

Analyze the interplay between India's encryption policies, national security concerns, and the fundamental right to privacy. What are the key policy dilemmas, and how can a balanced approach be achieved?

Explain the role of cryptographic hash functions and digital signatures in ensuring the integrity and authenticity of data in digital transactions and blockchain technology. Illustrate with suitable examples.