I am developing A-GPS using SUPLv1.0 protocol.
In Network initiated (server initiated) and Non-Proxy scenario,
1)(A-GPS)Server -------->SUPL_INIT------------->Client(Mobile Phone)
SUPL_INIT is through SMS/WAP
SUPL_INIT message contains session-id, address of the SPC, proxy/non-proxy mode indicator, Key Id, MAC and the intended positioning method.
SUPL_AUTH_REQ message contains session-id, key-id 2 and SET_nonce.
Session-id is generated by the client
SET_nonce is 16-byte random number.
key-id2 corresponds to 'PP2_SPC_Master_key', this is to be generated/created by the client(Mobile phone).
This key, PP2_SPC_Master_key, is used to derive 'PSK_SPC_key' which is used in TLS-PSK authentication between client and server.
So, I want to know about the 'PP2_SPC_Master_key'.
Does any one of you come across this key 'PP2_SPC_Master_key'.
How can we get/read this?
What is the procedure?
I think this is operator provisioned key.
Do you know the exact location, means EF file address.
Thanks in anticipation.