Ensured confidentiality authentication and key agreement protocol for EPS

The revenue from Security v/s its financial and performance cost debate has its fingerprints shown in EPS´s 3GPP Technical specification, where some contradiction between the security philosophy v/s design caught the attention of the research community. Example of these contradictions is the shown in 3GPP´s technical specification where the user´s identity must be confidential to third parties, while in the design, the user´s permanent Identifier is sent in plaintext over radio channel. Radio channels is susceptible to eavesdropping thus Users can be tracked for a short period before the temporary identifier is used, but this time is more than enough for a terrorist attack. Most of the papers published related to this topic, are proposing solutions for the above contradiction. In our work, some of these papers´ security robustness will be evaluated by exploiting its vulnerabilities, and simulating newly proposed attack (Intelligent Brute Force), thus sizing the confidence in its proposals. A new mechanism, Ensured confidentiality Authentication and Key agreement (EC-AKA), is proposed to enhance the user´s confidentiality and cover the identified AKA´s vulnerabilities, thus fulfilling the market´s long term needs, which LTE was developed for.