veyron/security/agent: Added encryption to agent and option not
to encrypt.

* Password will only be requested when the PEM Block is not encrypted.
* Next step is to change the agent from a signer to a principal. Coming
  soon...

Change-Id: I811bb6af636d83243052465039192c7bfa307cc1
14 files changed
tree: f70c7a42e561c86e9b4836efd55dcbb88665a871
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/