basically you can have an ECDSA or RSA key pair and store the private key locally, either in a PGP smartcard (which can really be just a USB stick), or more conveniently into a piece of clothing that use some sort of NFC to transmit the data.
again, the yubikey neo does that (using NFC) but with OTPs for example.
basically you can have an ECDSA or RSA key pair and store the private key locally, either in a PGP smartcard (which can really be just a USB stick), or more conveniently into a piece of clothing that use some sort of NFC to transmit the data.
again, the yubikey neo does that (using NFC) but with OTPs for example.