{'fraction_non_alphanumeric': 0.025396825396825397, 'fraction_numerical': 0.02328042328042328, 'mean_word_length': 5.306666666666667, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
On the Use of Formal Methods to Enforce Privacy-Aware Social Networking

This chapter discusses the use of formal techniques and formal verification tools to ensure privacy-aware social networking; hence users of social-networking sites can predict what the consequences of updating their privacy settings are. A formal methods approach is presented for modeling and comparing social-network privacy policies, and for checking whether a user’s privacy policy can coexist with other policies within a social networking site. The authors present the Poporo tool implementing the approach. Poporo builds on a predicate calculus definition for social networking written in B that models social network content, people in the network, friendship relations, and privacy policies that are modeled as permissions to access content. Several examples of privacy-awareness social networking are also shown using Poporo. DOI: 10.4018/978-1-4666-3926-3.ch011