Explaining Diffie Hellman Key Exchange

Goal:

• Alice and Bob want to talk securely
• They want to establish common key

Why:

• so that they can use SYMmetric cryptography, SYMmetric Encryption

Problem:

• BUT, they don't want to use Key Exchange, Key Exchange explained

Solution:

• DH Key Exchange
  Visual Explation here -> https://www.youtube.com/watch?v=NmM9HA2MQGI

Often used alongside RSA public key cryptography

• to prove the identity of the person you're talking to with digital signing
• This prevents someone from attacking the connection with a man in the middle attack by pretending to be Bob.