How can a replay attack be prevented in cryptographic systems?
A replay attack is a form of network attack in
Gaganpreet Singh
Explain the difference between a stream cipher and a block cipher.
Stream Cipher:
A stream cipher is a type of symmetric-key
How does a digital certificate validate the identity of an entity?
A digital certificate is a crucial component of the Public
What is the purpose of a key escrow in encryption?
Key escrow is a mechanism in encryption that involves the
Describe the role of a certificate authority (CA) in a public key infrastructure (PKI).
In a Public Key Infrastructure (PKI), the Certificate Authority (CA)
How does hashing contribute to data integrity in cryptography?
Hashing plays a crucial role in ensuring data integrity within
Explain the concept of a digital signature in cryptographic protocols.
A digital signature is a cryptographic technique used to provide
Differentiate between symmetric and asymmetric encryption.
Symmetric and asymmetric encryption are two fundamental cryptographic techniques used
What is the primary purpose of encryption in cybersecurity?
Encryption plays a crucial role in cybersecurity by providing a
Define the term "captive portal" in the context of network access.
A captive portal is a network device or a software