Privacy-Enhancing Security Protocol in LTE Initial Attack

The present invention relates to a cryptographic method for UE identification parameter in the LTE network initial access period, a variety of Initial Attach procedure according to the occurrence of vulnerability during connection LTE network parameter identifying the UE during performing Initial Attach procedure are transmitted in plain text for each case as to distinguish suggestions on how to safely transfer the identified parameters, Initial Attach try when we designed the Security Scheme to protect the unique identifying information such as the IMSI, RNTI is sent in plaintext, and key value used to encrypt identification parameters the Challeng-response and produced through the method, IMSI and a key used to encrypt the GUTI the corresponding key value by being defined by a value that is not used in the challenge-response process of the random number sequence generated by the UE and the MME to-secret sharing a hash function It is defined only within the UE and the MME is not sent over a communication process to an external Group because there are the technical features as an attacker to provide an encryption method, the UE identification parameters from the LTE network initial access period, characterized in that you can not find out the IMSI and encryption GUTI.