Initial Contact: C -> S.
- Client requests service.
- User and service don't know each other, and have not established a trust relationship.
- No P3P-like safe zone requirements.
- Transport level anonymization - think TOR, JAP - takes care of privacy protection in the initial stage of the exchange.
- This is the same as a request for the service with no credentials/declarations provided and the strictest possible user-side privacy preferences.