Thursday, March 30, 2017

Episode 64: Cryptography

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Intro Topic: Interning

News/Links

  • CIA Wiretapping
    • https://www.forbes.com/sites/thomasbrewster/2017/03/07/cia-wikileaks-samsung-smart-tv-hack-security/#1dd6ec514bcd 
  • SHA1 Collision
    • https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html

Book of the Show


Tool of the Show


Cryptography

  • Keys
    • Shared secret (a.k.a. password)
      • One time pad
    • Public & private key
      • RSA
      • PGP
    • Signing
  • Ciphers
    • Stateless
      • Caesar cipher
      • Substitution cipher
    • Stateful
      • Block wise (example: AES)
      • Streaming (example: Salsa20)
      • Nonce (Initial state)
  • Sending data securely
    • Use libsodium
    • Do ***not*** write your own crypto
  • Quantum
  • Compromised Clients