Complete cryptosystems

• SSL and TLS
  • Description
  • Handshakes
    • Downgrade attacks
  • Certificate authorities
  • Self-signed certificates
  • Client certificates
  • Perfect forward secrecy
  • Attacks
    • CRIME and BREACH
  • HSTS
  • Certificate pinning
  • Secure configurations
• OpenPGP and GPG
  • Description
  • The web of trust
• Off-The-Record Messaging (OTR)
  • Description
  • Key exchange
    • Commit message
    • Key message
    • Reveal Signature Message
    • Signature Message
    • Authenticating Alice
    • What have we accomplished?
  • Data exchange