State diagram for DNSsec key lifecycle

[Axel Rau]

While writing a script for key maintenance of 'auto-dnssec maintained' zones,
I try to understand the required actions and states of the keys.
Please comment on this state diagram:
	https://www.chaos1.de/svn-public/repos/network-tools/DNSsec/trunk/dnssec_key_states.pdf
Actions of the script are in red color. mgmt dir is the per zone directory where named finds the keys.

Axel
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