Obtaining P3P Privacy Policies for Composite Services

Algorithm 6

P3P privacy policy for Service A.

Policy{Entity (#business.name): ,…,

 𝑆₁{Purpose: (current, telemarketing),

    Recipient: (ours),

    Retention: (indefinitely),

    Data: (#user.name, #user.home-info)}

 𝑆₂{Purpose: (telemarketing),

    Recipient: (same_{3_user.home-info}, unrelated_{2_user.home-info} [opt-out]),

    Retention: (indefinitely),

    Data: (#user.home-info)}}