Litentry
Authorization and Data Exchange Infrastructure
on Polkadot Substrate
Architecture

Substrate Module Standard Definition
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Lock Parachain Demo

Prototyping
Raspberry Pi is used for encryption, Arduino is used as controller, nfc is used for sending data to the receiver,keyboard is used as a second layer safe controll
Co-Engineering with China Mobile, use NBIoT for network communication, use Bluetooth Low Energy send message to lock by p2p method, which could be used in many scenarios.

