Use ed to verify %full messages.
Use ed to verify %full messages.

Modify seal/tear so that the messages are authenticated. After a %full
message, there is a shared secret, so no more authentication should be
necessary.

juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff,juped/archaeology-cutoff