Security and Privacy Overviews In Mobile Payments

A system that uses biometric data, such as fingerprints or facial features, to recognise users securely while protecting the data against future quantum computer attacks. Fuzzy extractors help turn noisy biometric inputs into stable cryptographic keys.

• Python
• Fuzzy Extractors
• Biometrics

In the increasingly competitive digital commerce landscape, small to medium-sized businesses (SMBs) face significant challenges in establishing and maintaining a meaningful online retail pres ence. Unlike large retail enterprises, these businesses often lack tools that enable them to manage and optimise an e-commerce platform that can meet ever-evolving customer expectations. Meanwhile, modern consumers demand smooth and fast online shopping experiences, including intuitive product browsing and secure checkout and payment. Failure to meet these standards can often lead to lost sales opportunities and hurts the overall reputation and presence of brands in a highly saturated market. This is further amplified by the operational complexity of providing a technically sound and re sponsive platform that meets these needs. In order to analyse sales trends and respond to customer feedback, many smaller organisations are forced to develop sub-par systems, or rely on platforms such as social media, which are not purpose-built retail solutions. This not only negatively impacts customer experience, but poses a significant security risk as well.

• Next.js (15)
• Express.js
• Docker
• Typescript
• +2

This project provides an Attribute-Based Access Control (ABAC) authorisation system designed for low end devices with limited resources. Users can securely share files using a token based sharing scheme, where these tokens include access permissions and an access time frame. The system is implemented using a microservice architecture to ensure lightweight, scalable performance on a large number of hardware levels. The system dynamically selects an encryption profile based on the hardware capabilities of the device, in order to provide more secure algorithms when system resources allow it. More efficient profiles are chosen when the hardware of the systems is capable of processing the requirements efficiently. A web application demo is used to provide the system, featuring an interface that enables file navigation, access, and sharing through QR codes or shareable links. This project highlights how dynamic encryption profiles, combined with ABAC permission tokens, can provide secure and efficient access control even on resource limited systems.

• Express.js
• Next.js (15)
• JWT
• Clerk Auth
• +14