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Quick Response (QR) code is one of the most worldwide used two-dimensional codes.~Traditional QR codes appear as random collections of black-and-white modules that lack visual semantics and aesthetic elements, which inspires the recent…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Hao Su , Jianwei Niu , Xuefeng Liu , Qingfeng Li , Ji Wan , Mingliang Xu , Tao Ren

Quick response codes - 2D patterns that can be scanned to access online resources - are being used in a variety of industrial and consumer applications. However, it is problematic to use multiple QR codes in close proximity: scans can fail…

Computers and Society · Computer Science 2015-10-29 Mercan Topkara , Thomas Erickson , Umut Topkara , Chandrasekhar Narayanaswami

The widespread use of mobile electronic devices increases the complexities of mobile security. This paper aims to provide a secure communication environment for smartphone users. Some research proves that the one-time pad is one of the…

Cryptography and Security · Computer Science 2017-12-08 Yu Qin , Wanjiaman Li

Cryptography literally means "The art & science of secret writing & sending a message between two parties in such a way that its contents cannot be understood by someone other than the intended recipient". and Quantum word is related with…

Networking and Internet Architecture · Computer Science 2010-07-15 Aditya Goel

Quantum repeaters (QRs) provide a way of enabling long distance quantum communication by establishing entangled qubits between remote locations. We investigate a new approach to QRs in which quantum information can be faithfully transmitted…

Due to the widespread adoption of the smart mobile devices, QR codes have become one of the most-known types of 2D codes around the world. However, the data capacity properties of modern QR codes are still not perfect. To address this…

Other Computer Science · Computer Science 2019-02-18 Alexey Tikhonov

The emerging threats to user privacy over the internet are increasing at an alarming rate. Signing in from an unreliable terminal into a web account may result in compromising private details of a user such as username and password, by…

Cryptography and Security · Computer Science 2013-10-16 Kalpesh Adhatrao , Aditya Gaykar , Rohit Jha , Vipul Honrao

Now, security and authenticity of data is a big challenge. To solve this problem, we propose an innovative method to authenticate the digital documents. In this paper, we propose a new method, where the marks obtained by a candidate will…

Cryptography and Security · Computer Science 2018-08-20 Somdip Dey , Asoke Nath , Shalabh Agarwal

The paper presents a novel technique for encoding dual messages within standard Quick Response (QR) codes through precise half-pixel module splitting. This work challenges fundamental assumptions about deterministic decoding in the ISO/IEC…

Signal Processing · Electrical Eng. & Systems 2025-03-19 David Noever , Forrest McKee

Cryptography is an art and science of secure communication. Here the sender and receiver are guaranteed the security through encryption of their data, with the help of a common key. Both the parties should agree on this key prior to…

Cryptography and Security · Computer Science 2014-07-10 Minal Lopes , Nisha Sarwade

Globally, individuals and organizations employ Quick Response (QR) codes for swift and convenient communication. Leveraging this, cybercriminals embed falsify and misleading information in QR codes to launch various phishing attacks which…

Cryptography and Security · Computer Science 2025-10-21 Muhammad Wahid Akram , Keshav Sood , Muneeb Ul Hassan

The pharmaceutical manufacturing faces critical challenges due to the global threat of counterfeit drugs. This paper proposes a new approach of protected QR codes to secure unique product information for safeguarding the pharmaceutical…

Cryptography and Security · Computer Science 2026-02-24 Md Masruk Aulia , Nitol Saha , Md. Mostafizur Rahman

Cryptography is the science of encrypting the information so that it is rendered unreadable for an intruder. Cryptographic techniques are of utmost importance in today's world as the information to be sent might be of invaluable importance…

Cryptography and Security · Computer Science 2015-06-19 Arjun Puri , Sudesh Kumar

Executable QR codes, or sQRy, is a technology dated 2022 that permits to include a runnable program inside a QR code, enabling interaction with the user even in the absence of an Internet connection. sQRy are enablers for different…

Human-Computer Interaction · Computer Science 2025-12-02 Stefano Scanzio , Gabriele Formis , Pietro Chiavassa , Lukasz Wisniewski , Gianluca Cena

A new approach to quantum cryptography to be called KCQ, keyed communication in quantum noise, is developed on the basis of quantum detection and communication theory for classical information transmission. By the use of a shared secret key…

Quantum Physics · Physics 2007-05-23 Horace P. Yuen

Encryption is crucial for securing sensitive data during transmission over networks. Various encryption techniques exist, such as AES, DES, and RC4, with AES being the most renowned algorithm. We proposed methodology that enables users to…

Cryptography and Security · Computer Science 2026-05-05 Wasim Abbas , Salaki Reynaldo Joshua , Asim Abbas , Je-Hoon Lee

In the last decades, Quantum Cryptography has become one of the most important branches of Quantum Communications with a particular projection over the future Quantum Internet. It is precisely in Quantum Cryptography where two techniques…

General Physics · Physics 2021-02-16 Mario Mastriani

Besides achieving secure communication between two spatially-separated parties, another important issue in modern cryptography is related to secure communication in time, i.e., the possibility to confidentially store information on a memory…

Quantum Physics · Physics 2015-09-04 Gaetana Spedalieri

This study proposes a lightweight Zero-Knowledge authentication model supported by QR codes. The approach is based on the Schnorr authentication protocol and provides an additional security layer against replay attacks through nonce and…

Cryptography and Security · Computer Science 2026-05-19 Hüseyin Bodur

The usage of quick response (QR) codes was limited in the pre-era of the COVID-19 pandemic. Due to the widespread and frequent application since then, this opened up an attractive phishing opportunity for malicious actors. They trick users…

Cryptography and Security · Computer Science 2024-07-24 Marvin Geisler , Daniela Pöhn
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