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The rapid deployment of wireless technologies has given rise to the current situation where mobile phones and other wireless devices have become essential elements in all types of activities, including in the home. In particular,…

Cryptography and Security · Computer Science 2022-08-09 V Mora-Afonso , Pino Caballero-Gil , Jezabel Molina-Gil

Passwords remain a widely-used authentication mechanism, despite their well-known security and usability limitations. To improve on this situation, next-generation authentication mechanisms, based on behavioral biometric factors such as eye…

Cryptography and Security · Computer Science 2025-05-06 Matin Fallahi , Patricia Arias Cabarcos , Thorsten Strufe

Mobile authentication is indispensable for preventing unauthorized access to multi-touch mobile devices. Existing mobile authentication techniques are often cumbersome to use and also vulnerable to shoulder-surfing and smudge attacks. This…

Cryptography and Security · Computer Science 2014-02-07 Jingchao Sun , Rui Zhang , Jinxue Zhang , Yanchao Zhang

Steganography is an emerging area which is used for secured data transmission over any public media.Steganography is a process that involves hiding a message in an appropriate carrier like image or audio. It is of Greek origin and means…

Cryptography and Security · Computer Science 2010-05-27 Mamta Juneja , Parvinder singh Sandhu

Password security has been compelled to evolve in response to the growing computational capabilities of modern systems. However, this evolution has often resulted in increasingly complex security practices that alienate users, leading to…

Cryptography and Security · Computer Science 2025-10-14 Tonmoy Ghosh

Password security can no longer provide enough security in the area of remote user authentication. Considering this security drawback, researchers are trying to find solution with multifactor remote user authentication system. Recently,…

Cryptography and Security · Computer Science 2017-11-06 Hossen Asiful Mustafa , Hasan Muhammad Kafi

Previous Web access authentication systems often use either the Web or the Mobile channel individually to confirm the claimed identity of the remote user. This paper proposes a new protocol using multifactor authentication system that is…

Cryptography and Security · Computer Science 2011-11-15 Ayu Tiwari , Sudip Sanyal , Ajith Abraham , Svein Johan Knapskog , Sugata Sanyal

Smartphones hold important private information, yet users routinely expose this information to questionable applications written by developers they know nothing about. Users may be tempted to think of smartphones as old-style dumb phones,…

Cryptography and Security · Computer Science 2019-06-28 Amer Chamseddine , George Candea

Using password based authentication technique, a system maintains the login credentials (username, password) of the users in a password file. Once the password file is compromised, an adversary obtains both the login credentials. With the…

Cryptography and Security · Computer Science 2017-05-31 Nilesh Chakraborty , Samrat Mondal

Biometric-based authentication systems are getting broadly adopted in many areas. However, these systems do not allow participating users to influence the way their data is used. Furthermore, the data may leak and can be misused without the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Lubos Mjachky , Ivan Homoliak

Person re-identification is a critical security task for recognizing a person across spatially disjoint sensors. Previous work can be computationally intensive and is mainly based on low-level cues extracted from RGB data and implemented on…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 George Cushen

The current digital era, driven by growing threats to data security, requires a robust image encryption technique. Classical encryption algorithms suffer from a trade-off among security, image fidelity, and computational efficiency. This…

Conventional scattering-based encryption systems that operate based on a static complex medium which is used by all users are vulnerable to learning-based attacks that exploit ciphertext-plaintext pairs to model and reverse-engineer the…

Cryptography and Security · Computer Science 2024-09-24 Mohammadrasoul Taghavi , Edwin A. Marengo

The rise of smartphones has led to a significant increase in the usage of mobile payments. Mobile payments allow individuals to access financial resources and make transactions through their mobile devices while on the go. However, the…

Cryptography and Security · Computer Science 2023-04-20 Hosam Alamleh , Ali Abdullah S. AlQahtani , Baker Al Smadi

Password authentication is a weak point for security as passwords are easily stolen and a user may ignore the security by using a simple password. Therefore, services increasingly demand a second factor. While this may enhance security, it…

Cryptography and Security · Computer Science 2024-07-24 Anastasia Dimaratos , Daniela Pöhn

Resistive random-access memory (RRAM) is gaining popularity due to its ability to offer computing within the memory and its non-volatile nature. The unique properties of RRAM, such as binary switching, multi-state switching, and device…

Emerging Technologies · Computer Science 2024-07-08 Simranjeet Singh , Farhad Merchant , Sachin Patkar

Text-based passwords continue to be the prime form of authentication to computer systems. Today, they are increasingly created and used with mobile text entry methods, such as touchscreens and mobile keyboards, in addition to traditional…

Cryptography and Security · Computer Science 2014-03-11 Yulong Yang , Janne Lindqvist , Antti Oulasvirta

A new grayscale-based block scrambling image encryption scheme is presented to enhance the security of Encryption-then-Compression (EtC) systems, which are used to securely transmit images through an untrusted channel provider. The proposed…

Cryptography and Security · Computer Science 2018-12-18 Warit Sirichotedumrong , Tatsuya Chuman , Hitoshi Kiya

User authentication can rely on various factors (e.g., a password, a cryptographic key, biometric data) but should not reveal any secret or private information. This seemingly paradoxical feat can be achieved through zero-knowledge proofs.…

Cryptography and Security · Computer Science 2020-09-15 Laurent Chuat , Sarah Plocher , Adrian Perrig

We present SMAUG (Secure Mobile Authentication Using Gestures), a novel biometric assisted authentication algorithm for mobile devices that is solely based on data collected from multiple sensors that are usually installed on modern devices…

Cryptography and Security · Computer Science 2017-08-17 Christian A. Gorke , Frederik Armknecht