What are the limitations of traditional email encryption methods, such as link-level encryption, and how do they expose emails to potential vulnerabilities?
Traditional email encryption methods, such as link-level encryption, have been pivotal in securing email communications. However, they are not without their limitations, which can expose emails to various vulnerabilities. Understanding these limitations requires a deep dive into how these encryption methods function and where they fall short. Link-level encryption, often referred to as transport layer
In the context of public key cryptography, what are the differences between key agreement and key transport methods for establishing a shared secret, and how do they mitigate the risk of MITM attacks?
In the realm of public key cryptography, the establishment of a shared secret between communicating parties is a fundamental requirement for secure communication. This can be achieved through two primary methods: key agreement and key transport. Both methods serve the purpose of enabling two parties to securely exchange cryptographic keys, but they do so in
What is a man-in-the-middle (MITM) attack, and how can it compromise the security of the Diffie-Hellman key exchange?
A Man-in-the-Middle (MITM) attack is a form of cyberattack where an attacker intercepts and potentially alters the communication between two parties who believe they are directly communicating with each other. This type of attack can compromise the confidentiality, integrity, and authenticity of the data being exchanged. In the context of cryptographic protocols, such as the