Block Ciphers: slides handouts
Cryptographic Hash Functions: slides handouts
Public Key Cryptography: slides handouts
Key Distribution: slides handouts
Trust Infrastructure of SSL: slides handouts
IPsec: ESP Attacks: slides handouts
SSL/TLS & 3D Secure: slides handouts
Kerberos (and also WEP): slides handouts
Tor Anonymity Network
Weak Authentication, by Jari Arkko, Pekka Nikander: paper slides handouts