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Also, as a practical aside, two mobiles devices could use their screens and front-facing cameras to negotiate a secure session for key-exchange, etc.
by j1vms 8y ago
Also, as a practical aside, two mobiles devices could use their screens and front-facing cameras to negotiate a secure session for key-exchange, etc.
- reaperducer 8y agoIsn't this essentially how Apple Watch pairing happens?
- divan 8y agoNope. Apple Watch pairing is unidirectional and low-bandwidth, and uses extremely cool patented technique with hiding data in luminance changes. It's exploiting the fact that human eye is so much more sensitive to the chrominance changes, rather than luminance, but computers is not. http://www.iphonehacks.com/2015/05/new-apple-patents-explain-particle-cloud-pairing-method-used-for-apple-watch.html http://www.iphonehacks.com/2015/05/new-apple-patents-explain...