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Hello,
I'm using BLE 4.2 in a project with GAP security level "Unauthenticated pairing with encryption" since I have no I/O capabilities currently available. I was wondering if there's any standard way to implement authentication for such devices? Is dedicating a GATT characteristic to exchange custom authentication keys, a good idea?
Any suggestions are much appreciated.
Thanks
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Hello,
You can do the Authenticated pairing by using the hard coded fixed passkey in your firmware.
Please note that for Authenticated pairing ,you can not select the IO capabilities as "No Input No Output". So in the BLE component configuration you can select either Display or Both "Display and key board" ( even though you don t have any I/O ) and on pairing passkey request on Client side ,you can directly enter the Fixed hard coded passkey.
Please refer the attached project.
-Gyan
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Hello,
You can do the Authenticated pairing by using the hard coded fixed passkey in your firmware.
Please note that for Authenticated pairing ,you can not select the IO capabilities as "No Input No Output". So in the BLE component configuration you can select either Display or Both "Display and key board" ( even though you don t have any I/O ) and on pairing passkey request on Client side ,you can directly enter the Fixed hard coded passkey.
Please refer the attached project.
-Gyan
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Thank you Gyan.
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I believe there are some other No IO authentication/bonding examples floating around the forums if you search a little bit