Bruce Schneier has written a comprehensive book, that includes a wealth of information on various cryptographic concepts, methods, and their implementations [SCHNEIER].
Going through the mathematics in Schneier's book can however be tedious at times. Charlie Kaufman et al. have written a book on network security [KAUFMAN] that explains the mechanics of many security algorithms such as Message Digest (MD) and Data Encryption Standards (DES) in an algorithmic way. This book also explains Kerberos in a comprehensive manner.
More information about DH standards can be found in the document entitled "PKCS #3 Diffie-Hellman Key Agreement Standard" at RSA Security® web page: http://www.rsasecurity.com/rsalabs/pKcs/.
Edney and Arbaugh have written a book on 802.11 security [EDARB80211] explaining key management framework within 802.11 networks which can be used as an excellent material on real-life applications of EAP key management framework.
A good source of information on the progress of 802.11 WLAN (known as Wi-Fi in the business world), the reader can check the weekly news brief, called "Blue-Print Wi-Fi" at http://www.arcchart.com/. Unfortunately, this publication is not free. However, information on Wi-Fi Alliance can be found for free at Wi-Fi Alliance website [WIFIWEB].
For more information on KINK and its applications in the packet cable industry, ...