Not just for coins as money, for your identity as well. RSA… Twetch · December 16, 2019 Not just for coins as money, for your identity as well.RSA firm offers their devices already for super secure authentication. But RSA is not BitCoin.https://twetch.app/t/4d1fae1064c2eb7d0706c9f8c602469e08f1703fb7d50f7c90f29f3d169e1f5a