IOTA Jura Open IoT Challenge 4.0 Firma: In IOTA We Trust By Trusting IoT on March 2, 2018April 9, 2018 We are pleased to present Firma (it signs), a signer, encrypter and validator of locations. Posted in: eclipse iot, firma, IOTA, ips, Jura, kura, open iot challenge, pgp, react 2 comments