Question

 

Encapsulating Security Payload

04 Sep 2025
Answer :
Word Count : 556
Encapsulating Security Payload (ESP) is one of the core protocols of the IPsec framework that ensures secure communication over IP networks. It provides confidentiality, integrity, authentication, and anti-replay protection for the data being transmitted. ESP is widely used in Virtual Private Networks (VPNs) and other secure communication systems where data must be protected while traveling across untrusted networks such as the internet. Unlike the Authentication Header (AH) protocol of IPsec, which only provides authentication and integrity, ESP goes further by also offering encryption, making it a more comprehensive security solution. The primary function of ESP is to encrypt the payload of IP packets, ensuring confidentiality so that unauthorized parties cannot access the data. It supports various encryption algorithms such as AES, DES, and 3DES, allowing flexibility in terms of strength and computational efficiency. In addition to encryption, ESP provides ________ ___ _______ _________ ______ _________.
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