"FOAF+SSL is a way of allowing open social networking, while still leaving everything under the control of the individual. It uses well-established protocols, virtually every standard Web browser supports it. Wherever you need to interact over the Web with others but retain a level of trust - your secrets are your secrets - FOAF+SSL is there for you.
FOAF+SSL is a authentication and authorization protocol that links a Web ID to a public key, thereby enabling a global, decentralized/distributed, and open yet secure social network. It functions with existing browsers.
It uses PKI standards — usually thought of as hierarchical trust management tools — in a decentralized "web of trust" way. The web of trust is built using semantic web vocabularies (particularly FOAF) published in RESTful manner to form Linked Data."
