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The rapid growth of industrial technology, driven by automation, IoT, and cloud computing, has also increased the risk of cyberattacks, such as Man-in-the-Middle (MITM) attacks. A standard solution to protect data is using a Hardware…

Cryptography and Security · Computer Science 2024-09-17 Joshua Tito Amael , Jazi Eko Istiyanto , Oskar Natan

In this paper, we provide the first comprehensive study of user-chosen 4- and 6-digit PINs (n=1220) collected on smartphones with participants being explicitly primed for device unlocking. We find that against a throttled attacker (with 10,…

Cryptography and Security · Computer Science 2024-04-02 Philipp Markert , Daniel V. Bailey , Maximilian Golla , Markus Dürmuth , Adam J. Aviv

We propose Secure Pick Up (SPU), a convenient, lightweight, in-device, non-intrusive and automatic-learning system for smartphone user authentication. Operating in the background, our system implicitly observes users' phone pick-up…

Cryptography and Security · Computer Science 2017-08-31 Wei-Han Lee , Xiaochen Liu , Yilin Shen , Hongxia Jin , Ruby B. Lee

We address the problem of shoulder-surfing attacks on authentication schemes by proposing IllusionPIN (IPIN), a PIN-based authentication method that operates on touchscreen devices. IPIN uses the technique of hybrid images to blend two…

Cryptography and Security · Computer Science 2017-08-23 Athanasios Papadopoulos , Toan Nguyen , Emre Durmus , Nasir Memon

Modern computing systems are limited in performance by the memory bandwidth available to processors, a problem known as the memory wall. Processing-in-Memory (PIM) promises to substantially improve this problem by moving processing closer…

Cryptography and Security · Computer Science 2025-04-24 Sahar Ghoflsaz Ghinani , Jingyao Zhang , Elaheh Sadredini

Hardware Security Modules (HSMs) are trusted machines that perform sensitive operations in critical ecosystems. They are usually required by law in financial and government digital services. The most important feature of an HSM is its…

Cryptography and Security · Computer Science 2021-09-29 Riccardo Focardi , Flaminia L. Luccio

Data synchronization in decentralized storage systems is essential to guarantee sufficient redundancy to prevent data loss. We present SNIPS, the first succinct proof of storage algorithm for synchronizing storage peers. A peer constructs a…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-04-12 Racin Nygaard , Hein Meling

Memory-safety violations in C and C++ programs continue to enable sophisticated exploitation techniques such as control-flow hijacking and data-oriented attacks. Existing hardware defenses either rely on address space layout randomization…

Passwords provide security mechanism for authentication and protection services against unwanted access to resources. A graphical based password is one promising alternatives of textual passwords. According to human psychology, humans are…

Cryptography and Security · Computer Science 2011-10-19 Wazir Zada Khan , Mohammed Y. Aalsalem , Yang Xiang

Most contemporary mobile devices offer hardware-backed storage for cryptographic keys, user data, and other sensitive credentials. Such hardware protects credentials from extraction by an adversary who has compromised the main operating…

Cryptography and Security · Computer Science 2025-07-11 Jenny Blessing , Ross J. Anderson , Alastair R. Beresford

Mobile Web3 faces catastrophic retention (< 5%) yielding effective acquisition costs of \$500 - \$1,000 per retained user. Existing solutions force an impossible tradeoff: embedded wallets achieve moderate usability but suffer inherent…

Cryptography and Security · Computer Science 2025-11-19 Charles Cheng Ji , Brandon Kong

Passwords are undoubtedly the most dominant user authentication mechanism on the web today. Although they are inexpensive and easy-to-use, security concerns of password-based authentication are serious. Phishing and theft of password…

Cryptography and Security · Computer Science 2018-04-24 Klaudia Krawiecka , Arseny Kurnikov , Andrew Paverd , Mohammad Mannan , N. Asokan

In this work we present the Secure Machine, SeM for short, a CPU architecture extension for secure computing. SeM uses a small amount of in-chip additional hardware that monitors key communication channels inside the CPU chip, and only acts…

Cryptography and Security · Computer Science 2018-03-13 Ofir Shwartz , Yitzhak Birk

Personal Identification Numbers (PIN) are widely used as authentication method for systems such as Automated Teller Machines (ATMs) and Point of Sale (PoS). Input devices (PIN pads) usually give the user a feedback sound when a key is…

Cryptography and Security · Computer Science 2019-05-22 Matteo Cardaioli , Mauro Conti , Kiran Balagani , Paolo Gasti

The recent spades of cyber security attacks have compromised end users' data safety and privacy in Medical Cyber-Physical Systems (MCPS). Traditional standard encryption algorithms for data protection are designed based on a viewpoint of…

Cryptography and Security · Computer Science 2019-04-18 Han Qiu , Meikang Qiu , Meiqin Liu , Gerard Memmi

In-host shared memory (IVSHMEM) enables high-throughput, zero-copy communication between virtual machines, but today's implementations lack any security control, allowing any application to eavesdrop or tamper with the IVSHMEM region. This…

Cryptography and Security · Computer Science 2025-09-29 Hyunwoo Kim , Jaeseong Lee , Sunpyo Hong , Changmin Han

The disruptive technology of blockchain can deliver secure solutions without the need for a central authority. In blockchain protocols, assets that belong to a participant are controlled through the private key of an asymmetric key pair…

Cryptography and Security · Computer Science 2020-06-26 Mehmet Aydar , Salih Cemil Cetin , Serkan Ayvaz , Betul Aygun

The Internet of Things (IoT) being a promising technology of the future is expected to connect billions of devices. The increased number of communication is expected to generate mountains of data and the security of data can be a threat.…

Cryptography and Security · Computer Science 2018-03-23 Muhammad Usman , Irfan Ahmed , M. Imran Aslam , Shujaat Khan , Usman Ali Shah

Secure Device Pairing (SDP) relies on an out-of-band channel to authenticate devices. This requires a common hardware interface, which limits the use of existing SDP systems. We propose to use short-range acoustic communication for the…

Cryptography and Security · Computer Science 2023-02-16 Florentin Putz , Flor Álvarez , Jiska Classen

To encourage users to use stronger and more secure passwords, modern web browsers offer users password management services, allowing users to save previously entered passwords locally onto their hard drives. We present Lupin, a tool that…

Cryptography and Security · Computer Science 2013-09-06 Raul Gonzalez , Eric Y. Chen , Collin Jackson
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