25 OCT 2017 by ideonexus

 Blockchains

Ownership on the Bitcoin blockchain is determined by a pair of cryptographic keys. The first, called the public key, resides in the blockchain for anyone to see. The second is called the private key, and its owner keeps it safe from view. The two keys have a special mathematical relationship that makes them useful for signing digital messages. Here’s how that happens: Helmut takes a message, combines it with his private key, does some calculations, and ends up with a long number. Anyone who...
Folksonomies: blockchains technology
Folksonomies: blockchains technology
  1  notes
18 OCT 2014 by ideonexus

 The Gevulot

‘It’s a nice thought.’ He offers her his hand. ‘I am Paul. I got a little lost: all those moving streets. I was hoping you could tell me the way out.’ A trickle of emotion bleeds through his rough visitor’s gevulot: a sense of unease, a weight, a guilt. Xuexue can imagine the old man of the sea sitting on his back. It feels very familiar. And suddenly it is more important to talk to the stranger than to smile at the robot. ‘Sure I can,’ she says. ‘But why don’t you stay ...
  1  notes

A device that provides privacy protection with anyone you interact with real or virtual.