Week 2 - End to End Encryption

Question 1

What is End-to-End Encryption (E2EE)?

Answer 1

a method where messages are encrypted on the sender’s device and decrypted on the receivers device

Question 2

What cryptographic techniques are used in E2EE?

Answer 2

1. Diffie-Hellman Key Exchange.
2. Public Key Cryptography.

Question 3

advantages of E2EE.?

Answer 3

1. Enhanced privacy: Only sender and receiver can read messages.
2. Security against server breaches: Keys and messages are protected.

Question 4

limitations of E2EE?

Answer 4

1 Complexity in key management for users.
2. Servers cannot perform operations on encrypted messages (e.g., moderation).