The 1995 version of the spec is marked "Common Cryptographic Algorithms, Revision B," June 21 1995, 72 pages. Marked export-controlled.
This controlled document can be requested by calling Ms. Sharon Vargish at 1-703-907-7702, who will fax an NDA, and upon receipt of the completed form, will send the document at no cost.
The NDA is actually just an agreement not to export the document, and that you recognize the document is copyrighted.
Sidebar photo of Bruce Schneier by Joe MacInnis.