Database Security (CY-802 (A)) - Important Questions

Explain the concept of a mode of operation in cryptography. Provide an example of a specific mode used with lightweight block ciphers.

Describe design strategies for lightweight block ciphers. How do these differ from the design of traditional block ciphers like AES?

Briefly describe the design philosophies behind two of the listed lightweight block ciphers (DESL/DESXL or PRESENT/CLEFIA).

Briefly describe the function of a substitution box (S-Box) in a block cipher.

Stream ciphers can be vulnerable to specific attacks like the "birthday attack". How can the design of a stream cipher be optimized to resist such attacks while maintaining efficiency?

Explain the concept of key management in cryptography. Describe a specific challenge associated with key management for resource-constrained devices.

Compare and contrast centralized and distributed key management approaches for lightweight cryptography. Discuss the security implications of each approach.

How can lightweight key management be integrated into protocols like IPSec or TLS for securing communication in resource-constrained environments?

New lightweight group key management protocols are constantly being proposed. What are the key considerations which when evaluating the suitability of a new protocol for a specific IoT application?

Describe how symmetric key management can be integrated into a lightweight group key management protocol for IoT devices. https://www.rgpvonline.com

Describe the purpose of a cryptographic hash function. Provide an example of a real-world application that utilizes lightweight hashing.

Provide two reasons why traditional cryptographic algorithms might not be suitable for resource-constrained devices.

How might security threats for tiny devices differ from those for traditional computers?

What is the key difference between symmetric and asymmetric cryptography?

The security of a cryptographic algorithm relies heavily on its public scrutiny. Discuss the importance of open design and cryptanalysis in ensuring the long-term viability of lightweight block ciphers.