Cryptographic key
US-2015379286-A1 · Dec 31, 2015 · US
US9419795B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9419795-B2 |
| Application number | US-201414259592-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 23, 2014 |
| Priority date | Apr 24, 2013 |
| Publication date | Aug 16, 2016 |
| Grant date | Aug 16, 2016 |
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Official abstract text for this publication.
Disclosed is a method for performing secure communication using a digital device. The method includes outputting a light pattern using a radiator of a proximity sensor unit; and detecting the proximity of an object using the proximity sensor unit. Further, the method includes, when the object is in proximity within a predetermined distance range, extracting key generation information for the secure communication using the light pattern outputted from the radiator; generating a security key using the key generation information; and performing the secure communication with an external device using the generated security key.
Opening claim text (preview).
What is claimed is: 1. A method for performing secure communication between a digital device and an external device, using the digital device having a radiator of a proximity sensor and a receiver of a proximity sensor, the method comprising: outputting a first light pattern using the radiator of the proximity sensor; and detecting a proximity of an object using the proximity sensor; when the object approaches within a predetermined distance range from the digital device, extr…
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