How to get any device ID
that will authenticate
and validate in REST web service
for particular web service.
I can not use IMEI
or MAC
for storing in server and authenticate
hex string .I found about Secure Android ID
but it has wide range ,if phone will Reset/Factory wiped
and Android ID
will reset.Also credentials(Login/Pass/User Name etc.)
not usable for this.
I want to store one Hex-string(64 or 128 bit)
which can be validate during only SignIn/SignOut
scenario without credentials
authentication.