i have a design that covers you. it is based on an 'optimization' and
we have agreed to let optimizations sit for a bit.
the hack is as follows <hold nose>:
o an early optimization will be that each bgpspeaking AS adds a one
byte prepend count, over which it signs. this saves signing 92
prepends. the count is normally one.
o a bgpsec-speaking 'transparent' route server signs over a zero
prepend count.
o bgpsec speakers calculate as path length by summing prepend counts.
o a bgpsec speaker passing a signed announcement to a non-speaker
expands all prepends. of course, the expansion of a zero prepend
is rather small.
<release nose>
randy
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