Implement an ISO7816 command set to take advantage of on-chip crypto

[simonratner]

Some examples of what can be done on-chip:

• Key / seed generation
• Signing
• Secure channel (SCP03, SCP11) for protected comms between app and smartcard

This could become a standard AID and command set for other NFC devices to implement.

See: NFCISO7816Tag

[friedger]

Here are some commands in the wild: https://github.com/Toporin/SatochipApplet/blob/master/src/org/satochip/applet/CardEdge.java#L169 by @Bastien-Satoship

[Bastien-Satochip]

Hello,

Indeed, there are a lot of great things that can be done "on-chip" by Javacard.

I bump on @friedger 's comment and put some details here.

Satochip S.R.L. is already using dual interfaces smartcard (contact chip and contactless via NFC) in the blockchain field:

• Satochip is a hardware wallet, it can generates keys and sign transactions
• Satodime is a bearer crypto card, it can generates keys but does not sign
• Seedkeeper is a seedphrases manager, it can generate masterseed on chip (among other things)

We will be more than happy to explorer these ideas with you.