In this book we have covered many topics related to Mac OS X security. However, an exhaustive analysis of each of those topics would require entire books to themselves, not chapters.
This appendix is a collection of additional resources applicable to Mac OS X security. In addition, we have set up a web site (http://www.macsecurity.org/thebook) for updated information and example configurations found throughout this book.
Mel, H. X and Doris M. Baker. Cryptography Decrypted. Addison-Wesley, 2000.
A good introduction to cryptography. This book explains concepts and algorithms fundamental to many of the applications and protocols used by Mac OS X.
Schneier, Bruce. Secrets and Lies: Digital Security ...