Hiding from Facebook: An Encryption Protocol resistant to Correlation Attacks

Fuente: arXiv
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Autores principales: Liu, Chen-Da, Santini, Simone
Formato: Preprint
Publicado: 2024
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author Liu, Chen-Da
Santini, Simone
author_facet Liu, Chen-Da
Santini, Simone
contents In many social networks, one publishes information that one wants to reveal (e.g., the photograph of some friends) together with information that may lead to privacy breaches (e.g., the name of these people). One might want to hide this sensitive information by encrypting it and sharing the decryption key only with trusted people, but this might not be enough. If the cipher associated to a face is always the same, correlation between the output of a face recognition system and the cipher can give useful clues and help train recognizers to identify untagged instances of the face. We refer to these as "correlation attacks". In this paper we present a coding system that attempts to counter correlation attacks by associating to each instance of a face a different encryption of the same tag in such a way that the correlation between different instances is minimal. In addition, we present a key distribution code that allows only the owner of the images to encode the tags, but allows a group of trusted friends to decode them.
format Preprint
id arxiv_https___arxiv_org_abs_2404_18817
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Hiding from Facebook: An Encryption Protocol resistant to Correlation Attacks
Liu, Chen-Da
Santini, Simone
Cryptography and Security
Social and Information Networks
In many social networks, one publishes information that one wants to reveal (e.g., the photograph of some friends) together with information that may lead to privacy breaches (e.g., the name of these people). One might want to hide this sensitive information by encrypting it and sharing the decryption key only with trusted people, but this might not be enough. If the cipher associated to a face is always the same, correlation between the output of a face recognition system and the cipher can give useful clues and help train recognizers to identify untagged instances of the face. We refer to these as "correlation attacks". In this paper we present a coding system that attempts to counter correlation attacks by associating to each instance of a face a different encryption of the same tag in such a way that the correlation between different instances is minimal. In addition, we present a key distribution code that allows only the owner of the images to encode the tags, but allows a group of trusted friends to decode them.
title Hiding from Facebook: An Encryption Protocol resistant to Correlation Attacks
topic Cryptography and Security
Social and Information Networks
url https://arxiv.org/abs/2404.18817