Here's an interesting paper on cryptographic key management:
BITS: Enterprise Key Management
Apparently, the ANSI X9 group is considering starting a standards effort based on the BITS whitepaper. I think that key management is starting to get a little crowded for standards, but until one standard emerges as the most adopted in the industry, the hunting season is still open.
The IEEE Key Management Summit on September 23-24 (Baltimore, MD) has a 30-minute slot for ANSI X9, so we might be able to get more details then...