Innovative Wallet Using Trusted On-Line Keystore

This demonstration presents a prototype wallet, secured by an innovative on-line keystore, based on TLS1.3 server running in secure element. The main idea is to use via internet, keystore dedicated to blockchain, thanks to command shell, running over TLS1.3 server embedded in secure element. TLS1.3 exchanges are secured thanks to 32 bytes pre-shared-key (PSK), which acts as a strong PIN for secure element. A cheap keystore board is detailed, based on Wi-Fi SoC and Javacard 3.04. On the wallet side, a TLS 1.3 client uses a dedicated smartcard that protects PSK from eavesdropping.