I've produced a book with Tom Zerucha's OpenPGP implementation and a copy
of 2440 in it. It is in the scannable format used by NAI and the EFF. I
know that no one outside the US has been able to look at his reference
implementation, and this means that they can.
It is "OpenPGP Specification and Sample Code" edited by Jonathan D. Callas,
ISBN 1-58368-014-4.
You can get it from Printers Inc. <http://www.pibooks.com>. Their phone
number is (800) 742-0402 in the US, or +1 (650) 327-6500.
Jon
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Jon Callas jon(_at_)pgp(_dot_)com
CTO, Total Network Security 3965 Freedom Circle
Network Associates, Inc. Santa Clara, CA 95054
(408) 346-5860
Fingerprints: D1EC 3C51 FCB1 67F8 4345 4A04 7DF9 C2E6 F129 27A9 (DSS)
665B 797F 37D1 C240 53AC 6D87 3A60 4628 (RSA)