[guardian-dev] Connecting to nearby peers without user interaction

[Michael Rogers]

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Hi all,

A few months ago I mentioned an idea for making peer-to-peer
connections between Android devices without user interaction. I've
finally had a chance to try it out, and it works - devices that
support wifi direct service discovery (API 16 and later) can discover
each other and connect via Bluetooth or ordinary wifi without user
interaction.

The next step is to connect via wifi direct, which has higher
bandwidth than Bluetooth. One possible approach is to create a legacy
mode AP and advertise the SSID and password via service discovery;
another is to find out the device's self-assigned IP address and
advertise it in the same way as an ordinary wifi IP address.

Code is here:
https://code.briarproject.org/akwizgran/peer-discovery

Cheers,
Michael
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