Public Key Cryptography (2)

• Asymmetric (public-key) Cryptography

  • adding Confidentiality; 2 keys mathematically linked: public and private keys (RSA, DH)
  • either can be used for encryption /decryption
  • problem: computationally intensive

Recipient’s

Public Key

Cleartext

message

Cleartext

message

Encrypt

Decrypt

Recipient’s

Private key

Previous slide

Next slide

Back to first slide

View graphic version