The Secure Datagram Protocol #1: SDP1
As the contents of the Pad are unique but otherwise undefined, here are some notes: Suggested Layout of the Pad.
A start at a FAQ.
A Comparison with other similar designs.
Announced in Financial Cryptography blog.
An idea for making SDP Indistinguishable from Random. Some thoughts on a (very) future edition.
On the Datagram Tunnelling program sdt(1), here are some notes on modes.
On the motivational background to this work, see some rants on motives: