Comment by Kinrany 2 years ago I wonder if it's possible to answer pubkey challenges without electricity 1 comment Kinrany Reply crotchfire 2 years ago High-end JavaCards can do this. A few have RFID/NFC interfaces, but they are expensive.https://www.cardlogix.com/product-tag/ecdsa/
crotchfire 2 years ago High-end JavaCards can do this. A few have RFID/NFC interfaces, but they are expensive.https://www.cardlogix.com/product-tag/ecdsa/
High-end JavaCards can do this. A few have RFID/NFC interfaces, but they are expensive.
https://www.cardlogix.com/product-tag/ecdsa/