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What if you could really revoke your actual biometric identity, and install a new one, by live rewriting your biological self? We propose some novel mechanisms for hot swapping identity based in novel biotechnology. We discuss the potential…

Cryptography and Security · Computer Science 2025-09-23 Jon Crowcroft , Anil Madhavapeddy , Chris Hicks , Richard Mortier , Vasilios Mavroudis

Decentralized identity systems promise user-controlled identifiers and cross-domain verification without a shared identity provider, yet authentication still reduces to possession of keys or credentials once secrets are leaked, reused, or…

Cryptography and Security · Computer Science 2026-04-14 Zibin Lin , Taotao Wang , Junhao Lai , Shengli Zhang , Qing Yang , Soung Chang Liew

In this paper we assess how well users know biometric authentication methods, how they perceive them, and if they have misconceptions about them. We present the results of an online survey that we conducted in two rounds (2019, N=57; and…

Human-Computer Interaction · Computer Science 2024-10-17 Lukas Mecke , Alia Saad , Sarah Prange , Uwe Gruenefeld , Stefan Schneegass , Florian Alt

In this paper we present Deep Secure Encoding: a framework for secure classification using deep neural networks, and apply it to the task of biometric template protection for faces. Using deep convolutional neural networks (CNNs), we learn…

Computer Vision and Pattern Recognition · Computer Science 2015-06-16 Rohit Pandey , Yingbo Zhou , Venu Govindaraju

Deep hashing improves retrieval efficiency through compact binary codes, yet it introduces severe and often overlooked privacy risks. The ability to reconstruct original training data from hash codes could lead to serious threats such as…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Dongdong Zhao , Qiben Xu , Ranxin Fang , Baogang Song

The proliferation of large AI models trained on uncurated, often sensitive web-scraped data has raised significant privacy concerns. One of the concerns is that adversaries can extract information about the training data using privacy…

Machine Learning · Computer Science 2024-07-24 Dominik Hintersdorf , Lukas Struppek , Daniel Neider , Kristian Kersting

Phishing attacks pose a significant threat to Internet users, with cybercriminals elaborately replicating the visual appearance of legitimate websites to deceive victims. Visual similarity-based detection systems have emerged as an…

Cryptography and Security · Computer Science 2025-01-31 Fujiao Ji , Kiho Lee , Hyungjoon Koo , Wenhao You , Euijin Choo , Hyoungshick Kim , Doowon Kim

Due to their convenience and high accuracy, face recognition systems are widely employed in governmental and personal security applications to automatically recognise individuals. Despite recent advances, face recognition systems have shown…

Computer Vision and Pattern Recognition · Computer Science 2024-08-22 Mathias Ibsen , Lázaro J. González-Soler , Christian Rathgeb , Pawel Drozdowski , Marta Gomez-Barrero , Christoph Busch

In the rapidly evolving landscape of digital security, biometric authentication systems, particularly facial recognition, have emerged as integral components of various security protocols. However, the reliability of these systems is…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Oleksandr Kuznetsov , Emanuele Frontoni , Luca Romeo , Riccardo Rosati , Andrea Maranesi , Alessandro Muscatello

Extracting informative image features and learning effective approximate hashing functions are two crucial steps in image retrieval . Conventional methods often study these two steps separately, e.g., learning hash functions from a…

Computer Vision and Pattern Recognition · Computer Science 2015-10-28 Ruimao Zhang , Liang Lin , Rui Zhang , Wangmeng Zuo , Lei Zhang

Biometric identity-based encryption (Bio-IBE) is a kind of fuzzy identity-based encryption (fuzzy IBE) where a ciphertext encrypted under an identity w' can be decrypted using a secret key corresponding to the identity w which is close to…

Cryptography and Security · Computer Science 2012-03-20 Miaomiao Tian , Wei Yang , Liusheng Huang

Objective: The use of routinely-acquired medical data for research purposes requires the protection of patient confidentiality via data anonymisation. The objective of this work is to calculate the risk of re-identification arising from a…

Machine Learning · Computer Science 2022-04-01 Anna Antoniou , Giacomo Dossena , Julia MacMillan , Steven Hamblin , David Clifton , Paula Petrone

Mobile devices store a diverse set of private user data and have gradually become a hub to control users' other personal Internet-of-Things devices. Access control on mobile devices is therefore highly important. The widely accepted…

Cryptography and Security · Computer Science 2019-11-26 Neil Zhenqiang Gong , Mathias Payer , Reza Moazzezi , Mario Frank

Biometric authentication methods, representing the "something you are" scheme, are considered the most secure approach for gaining access to protected resources. Recent attacks using Machine Learning techniques demand a serious systematic…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Arbena Musa , Kamer Vishi , Blerim Rexha

Biometric recognition is a highly adopted technology to support different kinds of applications, ranging from security and access control applications to low enforcement applications. However, such systems raise serious privacy and data…

Cryptography and Security · Computer Science 2022-01-11 Mohamed Abomhara , Sule Yildirim Yayilgan

The rapid advancement of authentication systems and their increasing reliance on biometrics for faster and more accurate user verification experience, highlight the critical need for a reliable framework to evaluate the suitability of…

Machine Learning · Computer Science 2025-08-20 Rouqaiah Al-Refai , Pankaja Priya Ramasamy , Ragini Ramesh , Patricia Arias-Cabarcos , Philipp Terhörst

Mobile applications are widely used for online services sharing a large amount of personal data online. One-time authentication techniques such as passwords and physiological biometrics (e.g., fingerprint, face, and iris) have their own…

Cryptography and Security · Computer Science 2023-02-07 Hossein Fereidooni , Jan König , Phillip Rieger , Marco Chilese , Bora Gökbakan , Moritz Finke , Alexandra Dmitrienko , Ahmad-Reza Sadeghi

Biometrics are one of the most privacy-sensitive data. Ubiquitous authentication systems with a focus on privacy favor decentralized approaches as they reduce potential attack vectors, both on a technical and organizational level. The gold…

Cryptography and Security · Computer Science 2023-04-18 Philipp Hofer , Michael Roland , Philipp Schwarz , René Mayrhofer

The fundamental limits of biometric identification systems under a strong secrecy criterion are investigated. In the previous studies of this scenario, the fundamental trade-off among secrecy, template, privacy- and secrecy-leakages has…

Information Theory · Computer Science 2021-02-03 Vamoua Yachongka , Hideki Yagi

Applications based on biometric authentication have received a lot of interest in the last years due to the breathtaking results obtained using personal traits such as face or fingerprint. However, it is important not to forget that these…

Computer Vision and Pattern Recognition · Computer Science 2023-02-17 Carlos Gonzalez-Garcia , Ruben Tolosana , Ruben Vera-Rodriguez , Julian Fierrez , Javier Ortega-Garcia