ProjectExperiment
CryptoHanko
An Android digital stamp: sign QR data with a device-held key and verify the resulting bundle.
Cryptography & Implementation
Digital signatures and experiments with physical cryptographic objects.
Explore the 2 articles ↓Cryptography connects mathematical guarantees to devices and workflows. These projects explore two different uses of that connection.
Signing data with a device-held key
CryptoHanko explores a digital stamp on Android: read QR data, sign it with a key held by the device, and let someone verify the resulting bundle. The article follows the implemented workflow and its experimental status.
A cryptographic object you can hold
CryptoCash investigates an NFC bearer-token proposal. Its circuit experiments explore how a constrained device might participate in a publicly verifiable system. The article distinguishes the proposal from the AES and witness-generation work already implemented.
Articles in this topic
2 articles
ProjectExperiment
CryptoCash
An NFC bearer-token proposal, explored through AES circuits and witness-generation experiments.