. Statista, Facebook statistics. https://www.statista.com/statistics/264810/ number-of-monthly-active-facebook-users-worldwide/ (2016) [Online; accessed 4, 2016.

A. Eftekhar, C. Fullwood, and N. Morris, Capturing personality from Facebook photos and photo-related activities: How much exposure do you need?, Computers in Human Behavior, vol.37, pp.162-170, 2014.
DOI : 10.1016/j.chb.2014.04.048

E. Litt and E. Hargittai, Smile, snap, and share? A nuanced approach to privacy and online photo-sharing, Poetics, vol.42, pp.1-21, 2014.
DOI : 10.1016/j.poetic.2013.10.002

K. Lobinger, Photographs as things ??? photographs of things. A texto-material perspective on photo-sharing practices, Information, Communication & Society, vol.15, issue.4, pp.475-488, 2016.
DOI : 10.1145/2470654.2466243

A. Malik, A. Dhir, and M. Nieminen, Uses and Gratifications of digital photo sharing on Facebook, Telematics and Informatics, vol.33, issue.1, pp.129-138, 2016.
DOI : 10.1016/j.tele.2015.06.009

K. Liang, J. K. Liu, R. Lu, and D. S. Wong, Privacy Concerns for Photo Sharing in Online Social Networks, IEEE Internet Computing, vol.19, issue.2, pp.58-63, 2015.
DOI : 10.1109/MIC.2014.107

S. Taheri-boshrooyeh, A. Küpçü, and O. Ozkasap, Security and Privacy of Distributed Online Social Networks, 2015 IEEE 35th International Conference on Distributed Computing Systems Workshops, pp.2015-112, 2015.
DOI : 10.1109/ICDCSW.2015.30

N. Bronson, Z. Amsden, G. Cabrera, P. Chakka, P. Dimov et al., Tao: Facebook's distributed data store for the social graph, pp.13-49, 2013.

A. Lewko and B. Waters, Decentralizing Attribute-Based Encryption, pp.568-588, 2011.
DOI : 10.1007/978-3-642-20465-4_31

Y. Rouselakis and B. Waters, Efficient Statically-Secure Large-Universe Multi-Authority Attribute-Based Encryption, Financial Cryptography and Data Security -19th International Conference, pp.315-332, 2015.
DOI : 10.1007/978-3-662-47854-7_19

URL : http://eprint.iacr.org/2015/016.pdf

B. Waters, Ciphertext-Policy Attribute-Based Encryption: An Expressive, Efficient, and Provably Secure Realization, PKC '11. PKC'11, pp.53-70, 2011.
DOI : 10.1007/978-3-642-19379-8_4

R. Baden, A. Bender, N. Spring, B. Bhattacharjee, and D. Starin, Persona, ACM SIGCOMM Computer Communication Review, vol.39, issue.4, pp.135-146, 2009.
DOI : 10.1145/1594977.1592585

S. Buchegger, D. Schiöberg, L. H. Vu, and A. Datta, PeerSoN: P2P social networking, Proceedings of the Second ACM EuroSys Workshop on Social Network Systems, SNS '09, pp.46-52, 2009.
DOI : 10.1145/1578002.1578010

L. A. Cutillo, R. Molva, and T. Strufe, Safebook: A privacy-preserving online social network leveraging on real-life trust, IEEE Communications Magazine, vol.47, issue.12, pp.94-101, 2009.
DOI : 10.1109/MCOM.2009.5350374

URL : https://hal.archives-ouvertes.fr/hal-00687143

S. Nilizadeh, S. Jahid, P. Mittal, N. Borisov, and A. Kapadia, Cachet, Proceedings of the 8th international conference on Emerging networking experiments and technologies, CoNEXT '12, pp.337-348, 2012.
DOI : 10.1145/2413176.2413215

M. R. Ra, R. Govindan, and A. Ortega, P3: Toward privacy-preserving photo sharing, NSDI '13, pp.515-528, 2013.

L. Yuan, D. Mc-nally, A. Küpçü, and T. Ebrahimi, Privacy-Preserving Photo Sharing based on a Public Key Infrastructure, In: SPIE Optical Engineering + Applications . Applications of Digital Image Processing XXXVIII, 2015.
DOI : 10.1117/12.2190458

URL : https://infoscience.epfl.ch/record/210903/files/spie_2015_privacy_1.pdf

L. Zhang, T. Jung, C. Liu, X. Ding, X. Y. Li et al., POP: Privacy-Preserving Outsourced Photo Sharing and Searching for Mobile Devices, 2015 IEEE 35th International Conference on Distributed Computing Systems, pp.2015-308, 2015.
DOI : 10.1109/ICDCS.2015.39

H. Qian, J. Li, Y. Zhang, and J. Han, Privacy-preserving personal health record using multi-authority attribute-based encryption with revocation, International Journal of Information Security, vol.9, issue.7281, pp.487-497, 2015.
DOI : 10.1145/2382196.2382250

P. W. Fong, Relationship-based access control, Proceedings of the first ACM conference on Data and application security and privacy, CODASPY '11, pp.191-202, 2011.
DOI : 10.1145/1943513.1943539

R. Pardo, I. Kellyérová, C. Sánchez, and G. Schneider, Specification of Evolving Privacy Policies for Online Social Networks, 2016 23rd International Symposium on Temporal Representation and Reasoning (TIME), pp.70-79, 2016.
DOI : 10.1109/TIME.2016.15

R. Pardo and G. Schneider, A Formal Privacy Policy Framework for Social Networks, SEFM'14, pp.378-392, 2014.
DOI : 10.1007/978-3-319-10431-7_30