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We present a practical match-on-card design for face verification in which compact 64/128-bit templates are produced off-card by PCA-ITQ and compared on-card via constant-time Hamming distance. We specify ISO/IEC 7816-4 and 14443-4 command…

Cryptography and Security · Computer Science 2025-10-21 Abdelilah Ganmati , Karim Afdel , Lahcen Koutti

We propose a Composite Code Sparse Autoencoder (CCSA) approach for Approximate Nearest Neighbor (ANN) search of document representations based on Siamese-BERT models. In Information Retrieval (IR), the ranking pipeline is generally…

Information Retrieval · Computer Science 2022-04-15 Carlos Lassance , Thibault Formal , Stephane Clinchant

This paper presents an efficient framework for private Transformer inference that combines Homomorphic Encryption (HE) and Secure Multi-party Computation (MPC) to protect data privacy. Existing methods often leverage HE for linear layers…

Cryptography and Security · Computer Science 2025-09-03 Tianshi Xu , Wen-jie Lu , Jiangrui Yu , Chen Yi , Chenqi Lin , Runsheng Wang , Meng Li

Recently, a chaos-based image encryption algorithm using alternate structure (IEAS) was proposed. This paper focuses on differential cryptanalysis of the algorithm and finds that some properties of IEAS can support a differential attack to…

Cryptography and Security · Computer Science 2011-12-22 Yu Zhang , Chengqing Li , Kwok-Wo Wong , Shi Shu , Guanrong Chen

Federated machine learning systems have been widely used to facilitate the joint data analytics across the distributed datasets owned by the different parties that do not trust each others. In this paper, we proposed a novel Gradient…

Machine Learning · Computer Science 2019-11-28 Zhi Fengy , Haoyi Xiong , Chuanyuan Song , Sijia Yang , Baoxin Zhao , Licheng Wang , Zeyu Chen , Shengwen Yang , Liping Liu , Jun Huan

We introduce an efficient implementation of sparse recovery methods for the problem of harmonic estimation with 2D sparse arrays using a single snapshot. By imposing a uniformity constraint on the harmonic grids of the subdictionaries used…

Signal Processing · Electrical Eng. & Systems 2025-09-18 Youval Klioui

We have introduced a novel adversary model in Chosen-Ciphertext Attack with Timing Attack (CCA2-TA) and it was a practical model because the model incorporates the timing attack. This paper is an extended paper for 'A Secure TFTP Protocol…

Cryptography and Security · Computer Science 2016-07-05 Mohd Anuar Mat Isa , Habibah Hashim

Component Based Software Engineering (CBSE) seeks to promote the reuse of software by using existing software modules into the development process. However, the availability of such a reusable component is not immediate and is costly and…

Software Engineering · Computer Science 2021-02-10 Cezar Sas , Andrea Capiluppi

Biometrics security is a dynamic research area spurred by the need to protect personal traits from threats like theft, non-authorised distribution, reuse and so on. A widely investigated solution to such threats consists in processing the…

Cryptography and Security · Computer Science 2018-03-29 Giulia Droandi , Mauro Barni , Riccardo Lazzeretti , Tommaso Pignata

Quantum secret sharing is a cryptographic scheme that enables a secure storage and reconstruction of quantum information. While the theory of secret sharing is mature in its development, relatively few studies have explored the performance…

Quantum Physics · Physics 2025-11-04 Jay Graves , Mike Nelson , Eric Chitambar

In this paper, a new image encryption scheme using a secret key of 144-bits is proposed. In the substitution process of the scheme, image is divided into blocks and subsequently into color components. Each color component is modified by…

Cryptography and Security · Computer Science 2012-04-10 Narendra K Pareek

Currently, there is a gap in the field of ultra-high-definition (UHD) video dehazing due to the lack of a benchmark for evaluation. Furthermore, existing video dehazing methods cannot run on consumer-grade GPUs when processing continuous…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Yongcong Wang , Chengchao Shen , Guangwei Gao , Wei Wang , Pengwen Dai , Dianjie Lu , Guijuan Zhang , Zhuoran Zheng

Ephemeral Diffie-Hellman Over COSE (EDHOC) aims at being a very compact and lightweight authenticated Diffie-Hellman key exchange with ephemeral keys. It is expected to provide mutual authentication, forward secrecy, and identity…

Cryptography and Security · Computer Science 2022-09-12 Baptiste Cottier , David Pointcheval

Fully homomorphic encryption (FHE) is one of the prospective tools for privacypreserving machine learning (PPML), and several PPML models have been proposed based on various FHE schemes and approaches. Although the FHE schemes are known as…

In this paper, we propose to use a twisted dihedral group algebra for public-key cryptography. For this, we introduce a new $2$-cocycle $\alpha_{\lambda}$ to twist the dihedral group algebra. Using the ambient space…

Cryptography and Security · Computer Science 2021-12-16 Javier de la Cruz , Ricardo Villanueva-Polanco

Blockchain-based IoT data sharing systems increasingly adopt a hybrid architecture in which a permissioned ledger stores tamper-evident metadata while encrypted payloads are placed in content-addressed storage. In such systems, a central…

Cryptography and Security · Computer Science 2026-05-07 Chun Yin Chiu

Bitmap index is recognized as a promising candidate for online analytics processing systems, because it effectively supports not only parallel processing but also complex and multi-dimensional queries. However, bitmap index creation is a…

Hardware Architecture · Computer Science 2018-04-24 Xuan-Thuan Nguyen , Trong-Thuc Hoang , Hong-Thu Nguyen , Katsumi Inoue , Cong-Kha Pham

A cancelable biometric scheme called correlation-invariant random filtering (CIRF) is known as a promising template protection scheme. This scheme transforms a biometric feature represented as an image via the 2D number theoretic transform…

Computer Vision and Pattern Recognition · Computer Science 2018-04-06 Takao Murakami , Tetsushi Ohki , Yosuke Kaga , Masakazu Fujio , Kenta Takahashi

Coded caching is an effective technique to decongest the amount of traffic in the backhaul link. In such a scheme, each file hosted in the server is divided into a number of packets to pursue a low transmission rate based on the delicate…

Information Theory · Computer Science 2022-07-21 Xianzhang Wu , Minquan Cheng , Li Chen , Congduan Li , Zifan Shi

Content-based image retrieval (CBIR) has become one of the most important research directions in the domain of digital data management. In this paper, a new feature extraction schema including the norm of low frequency components in wavelet…

Image and Video Processing · Electrical Eng. & Systems 2019-02-07 Abdolreza Rashno , Elyas Rashno