Bruce Schneier, "Applied Cryptography" published by John Wiley & sons. ISBN 0-471-12845-7
Applied Cryptography[L1 ], second edition, October 18, 1995, in paperback, ISBN 0-471-11709-9 (The first citation is second edition, in hardback.)
Is Tcl covered in this book, or is it mentioned because of its relevance to Cryptography?