A new authentication and message encryption algorithm for roaming user in GSM network

  • Kim, Bum-Sik (Department of Electronics and computer Engineering, Dankook University) ;
  • Shin, In-Chul (Department of Electronics and computer Engineering, Dankook University)
  • 발행 : 2000.07.01

초록

With the advance of wireless communications technology, mobile communications has become more convenient than ever. However because of the openness of wireless communications, how to protect the privacy between communicating parties is becoming a very important issue. In this paper an authentication and encryption algorithm of the GSM network for roaming user is proposed. In the proposed algorithms, we use a new hash function for user authentication and LFSR (Linear Feedback Shift Register) based stream cipher for message encryption and decryption. Each algorithm is programmed with C language and simulated on IBM-PC system and we analyze the randomness properties of the developed algorithm using statistical analysis.

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