CryptoOnTheFly

Idea: CryptoOnTheFly

Problem: Current hardware wallets are often too complex, expensive, and require some form of connection to another device (physical, Bluetooth, etc.). This complexity and cost create barriers for many potential users who seek a simple, affordable, and secure way to manage their cryptocurrencies.

Solution: CryptoOnTheFly offers a user-friendly, secure, low-cost, and eco-friendly cold wallet solution. Our solution allows users to store cryptocurrencies and sign transactions on an offline device, eliminating the need for any physical or wireless connections to other devices.

How is made?

We have developed an application that can be installed on old smartphones, that doesn't need to be connected to anything, turning them into secure cold wallets. Additionally, we have created a plugin that interacts with the blockchain. This plugin generates transaction messages, which are converted into QR codes. These QR codes contain all necessary transaction information. The mobile application reads these QR codes, allowing the transaction to be signed completely offline by the recycled device. Once the transaction is signed, the device generates a new QR code containing the signed transaction. The plugin then scans this QR code and broadcasts the transaction to the blockchain.

Link to repositories:

https://github.com/jowisaidman/CryptoOnTheFlyFE

https://github.com/nicoan/cof_plugin

https://github.com/nicoan/forwarder (We couldn't verify this contract using scroll scan but we did it with Emily in person)

https://drive.google.com/drive/folders/1ChigfoC0--70rf9WxObm1i7r5dSCRm-T?usp=sharing (Link to demo video)