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hardcoded pin for pairing

naveen kumar92
Intellectual 310 points

hiiii 

i want to set the authentication for my bluetooth device while pairing

fallowing config are done -> mitm=true and pairing mode to initiate and remaining as mentioned in the user guide

i can able to set the pairing pin and from mobile i can enter the pin it is pairing

problem faced are:

1. i have given password as 123456 .and when i try to enter 12345678 from mobile it is pairing where as the password is just 123456 only which is 6 dig length

and when i enter passwords like 123456,12345678,123456789 it is pairing (passcode i set is 123456)

2. and onemore case is of entering password is not working if we fail to set password for 3 times after wards it is directly pairing

could you please suggest me whether i missed any changes from the embedded side or we have a limitation from bluetooth????

devices are devkit-cc2650 in simple ble peripheral mode mobile-nexus6

 pls suggest!!!!

thanks in advance

  • 0
    TI__Mastermind 25035 points

    Hi Naveen,

    1. The max value of the passcode is 999999 for six digit number as defined by specifications. It could be the app truncating the values to the first 6 digits. BLE sniffer trace could verify this.

    2. How do you know you are pairing? For example, are you able to read Characteristic 5 in SimpleBLEPeripheral project which has permission of GATT_PERMIT_AUTHEN_READ?

    Best wishes