All in one

Saturday, 27 October 2018

Magic Marker - A Memorising Tool

The Keyword Method is an effective system for remembering definitions, learning foreign language vocabulary, and more. The tool is to make your memorising more efficient.

[Magic Marker] is a simple memorising tool to mask the keywords in a text paragraph or word list. You can memorise the keywords first and slowly the whole paragraph.

- Support 4 different colours of marker pen: yellow, green, red, blue
- Support underline the key words (Bate)
- Show and hide any key word by single click
- Reverse the the mask to show key words only
- Remove all the masks by single click

iOS App Store Link: https://tinyurl.com/y9s63fbj
Android Play Store Link: https://tinyurl.com/y7rhcqdr

Technical Stack:

Android Kotlin Programming
iOS Swift Programming
Native C++ programming
OpenCV
SQLite
Core Data

Demo Video

Screenshots of launching screens

Monday, 30 July 2018

Gemalto Mobile Wallet

This is a demonstration App for the Gemalto Mobile Wallet solution. Users can add a credit card to their wallet and use it for payment. To do the payment, the user just needs to present the QR code to the merchant to scan.

Technical Stack:

iOS Objective-C Programming
OCMock
OAuth v1.0 Authentication
WhiteBox Crypto
Secure Enclave ECIES encryption and decryption
App Protection: Anti-tampering, Anti-debug, Anti-hooking, Jailbreak detection, App re-signing detection.

Experience:

Designed the mechanism to prevent app re-signing on iOS by parsing MachO format.
Enhanced the security of payment flow by using Secure Enclave as part of the payment key calculation.