What role does a Certificate Authority (CA) play in the authentication process, and how does it ensure the validity of public keys exchanged between two parties?
A Certificate Authority (CA) plays a pivotal role in the authentication process within the realm of cybersecurity, particularly in the context of Public Key Infrastructure (PKI). The CA is a trusted entity that issues digital certificates, which serve as electronic credentials to verify the authenticity of public keys exchanged between parties. This mechanism is important
- Published in Cybersecurity, EITC/IS/ACC Advanced Classical Cryptography, Man-in-the-middle attack, Man-in-the-middle attack, certificates and PKI, Examination review
How does the use of certificates and Public Key Infrastructure (PKI) prevent man-in-the-middle attacks in public key cryptography?
Public Key Infrastructure (PKI) and the use of digital certificates play a pivotal role in mitigating man-in-the-middle (MITM) attacks in public key cryptography. To understand this, it is essential to consider the mechanics of PKI, the function of digital certificates, and the nature of MITM attacks. Public Key Infrastructure (PKI) PKI is a framework that
How does the Diffie-Hellman key exchange mechanism work to establish a shared secret between two parties over an unsecured channel, and what are the steps involved?
The Diffie-Hellman key exchange mechanism is a fundamental cryptographic protocol that allows two parties to establish a shared secret over an unsecured communication channel. This shared secret can subsequently be used to encrypt further communications using symmetric key cryptography. The protocol is named after its inventors, Whitfield Diffie and Martin Hellman, who introduced it in
Is the Diffie Hellman protocol vulnerable to the Man-in-the-Middle attack?
A Man-in-the-Middle (MitM) attack is a form of cyber attack where the attacker intercepts communication between two parties without their knowledge. This attack allows the attacker to eavesdrop on the communication, manipulate the data being exchanged, and in some cases, impersonate one or both parties involved. One of the vulnerabilities that can be exploited by
How does Google Cloud Platform (GCP) address the risk of man-in-the-middle attacks and DDoS exploits?
Google Cloud Platform (GCP) is a comprehensive suite of cloud computing services provided by Google. As with any cloud platform, security is a top priority for GCP. In this answer, we will discuss how GCP addresses the risk of man-in-the-middle attacks and distributed denial-of-service (DDoS) exploits. A man-in-the-middle (MITM) attack occurs when an attacker intercepts