Applied Cryptography: Protocols, Algorithms, and Source Code in C, 2nd Edition by Bruce Schneier, Paperback - 784 pages 2 edition (October 18, 1995) John Wiley & Sons; ISBN: 0471117099. Book site.  $43.96 at amazon.com.   $33.50 at bookpool.com.   $31.50 at half.com.   Schneier's Company.  Schneier's Solitaire encryption method.  Interview.  Intel ID numbers.  Essay.