高效率GSM相互鑑別機制

 

Efficient Mutual authentication Scheme of GSM

 

呂崇富

中國海事商業專科學校資訊工程科

延平北路9212

台北市111士林區

peter@mail.ccmtc.edu.tw

 

Chung-Fu Lu

Department of Computer Science and Information Engineering,

China College of Marine Technology and Commerce

212, Sec 9, Yan-Pin N. Rd.

Taipei 111, Taiwan, R.O.C.

 

 

摘要

數位化的全球行動電話(GSM, Global System for Mobile Communication)系統已廣泛地使用在歐洲及其他全球各地,目前已有超過190個國家總計10億人口在使用GSM系統。但是現行GSM系統的鑑別機制卻存在著一些安全性威脅,例如MS(Mobile Station)VLR(Visitor Location Register)間無法相互鑑別、增加HLR(Home Location Register)VLR間傳遞鑑別資訊的通訊頻寬負擔及VLR額外儲存負擔等。本論文將提出一個能夠同時解決上述缺點的GSM相互鑑別機制,我們提出的方法並不須改變現行GSM系統架構,且相當有效率。

 

關鍵詞:鑑別、單向雜湊函數、加密、解密

 

Abstract

   GSM (Global System for Mobile communication) is a digital mobile telephone system that is widely used in Europe and other parts of the world. GSM has over one billion users worldwide and is available in 190 countries. There are several drawbacks found in the existing authentication protocol of GSM, such as the property that VLR cannot be authenticated, communication bandwidth consumption between VLR and HLR, and storage overhead in VLR. In this paper, we propose a novel mutual authentication protocol which can not only solve those drawbacks but also make the authentication more efficient.

 

Key words: authentication, one-way function, encryption, decryption