GSM Security And Encryption
#1

The motivations for security in cellular telecommunications systems are to secure conversations and signaling data from interception as well as to prevent cellular telephone fraud. With the older analog-based cellular telephone systems such as the Advanced Mobile Phone System (AMPS) and the Total Access Communication System (TACS), it is a relatively simple matter for the radio hobbyist to intercept cellular telephone conversations with a police scanner. A well-publicized case involved a potentially embarrassing cellular telephone conversation with a member of the British royal family being recorded and released to the media. Another security consideration with cellular telecommunications systems involves identification credentials such as the Electronic Serial Number (ESN), which are transmitted "in the clear" in analog systems. With more complicated equipment, it is possible to receive the ESN and use it to commit cellular telephone fraud by "cloning" another cellular phone and placing calls with it. Estimates for cellular fraud in the U.S. in 1993 are as high as $500 million. The procedure wherein the Mobile Station (MS) registers its location with the system is also vulnerable to interception and permits the subscriber's location to be monitored even when a call is not in progress, as evidenced by the recent highly-publicized police pursuit of a famous U.S. athlete.

The security and authentication mechanisms incorporated in GSM make it the most secure mobile communication standard currently available, particularly in comparison to the analog systems described above. Part of the enhanced security of GSM is due to the fact that it is a digital system utilizing a speech coding algorithm, Gaussian Minimum Shift Keying (GMSK) digital modulation, slow frequency hopping, and Time Division Multiple Access (TDMA) time slot architecture. To intercept and reconstruct this signal would require more highly specialized and expensive equipment than a police scanner to perform the reception, synchronization, and decoding of the signal. In addition, the authentication and encryption capabilities discussed in this paper ensure the security of GSM cellular telephone conversations and subscriber identification credentials against even the determined eavesdropper.

GSM (group special mobile or general system for mobile communications) is the Pan-European standard for digital cellular communications. The Group Special Mobile was established in 1982 within the European Conference of Post and Telecommunication Administrations (CEPT). A Further important step in the history of GSM as a standard for a digital mobile cellular communications was the signing of a GSM Memorandum of Understanding (MoU) in 1987 in which 18 nations committed themselves to implement cellular networks based on the GSM specifications. In 1991 the first GSM based networks commenced operations. GSM provides enhanced features over older analog-based systems, which are summarized below:

Total Mobility: The subscriber has the advantage of a Pan-European system allowing him to communicate from everywhere and to be called in any area served by a GSM cellular network using the same assigned telephone number, even outside his home location. The calling party does not need to be informed about the called person's location because the GSM networks are responsible for the location tasks. With his personal chipcard he can use a telephone in a rental car, for example, even outside his home location. This mobility feature is preferred by many business people who constantly need to be in touch with their headquarters.

High Capacity and Optimal Spectrum Allocation: The former analog-based cellular networks had to combat capacity problems, particularly in metropolitan areas. Through a more efficient utilization of the assigned frequency bandwidth and smaller cell sizes, the GSM System is capable of serving a greater number of subscribers. The optimal use of the available spectrum is achieved through the application Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), efficient half-rate and full-rate speech coding, and the Gaussian Minimum Shift Keying (GMSK) modulation scheme.

Security: The security methods standardized for the GSM System make it the most secure cellular telecommunications standard currently available. Although the confidentiality of a call and anonymity of the GSM subscriber is only guaranteed on the radio channel, this is a major step in achieving end-to- end security. The subscriber's anonymity is ensured through the use of temporary identification numbers. The confidentiality of the communication itself on the radio page link is performed by the application of encryption algorithms and frequency hopping which could only be realized using digital systems and signaling.

Services: The list of services available to GSM subscribers typically includes the following: voice communication, facsimile, voice mail, short message transmission, data transmission and supplemental services such as call forwarding.
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: what encryption is teamspeak 3, nanocell gsm, gsm encryption and security ppt, encryption simple, gsm security and encryption electronics documentation pdf, detctor gsm, gsm handsets,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  network security seminars report computer science technology 14 20,385 24-11-2018, 01:19 AM
Last Post:
  Data Encryption Standard (DES) seminar class 2 9,334 20-02-2016, 01:59 PM
Last Post: seminar report asees
  Bluetooth Security Full Download Seminar Report and Paper Presentation computer science crazy 21 26,056 07-08-2014, 11:32 PM
Last Post: [email protected]
  Data Security in Local Network using Distributed Firewalls computer science crazy 10 14,791 30-03-2014, 04:40 AM
Last Post: Guest
  XML encryption full report computer science technology 6 12,775 21-03-2014, 05:22 PM
Last Post: MichaelPn
  Security in Data Warehousing seminar surveyer 3 9,838 12-08-2013, 10:24 AM
Last Post: computer topic
  E-COMPILER FOR JAVA WITH SECURITY EDITOR smart paper boy 7 11,755 27-07-2013, 01:06 PM
Last Post: computer topic
  E-COMPILER FOR JAVA WITH SECURITY EDITOR seminar class 9 13,524 24-06-2013, 11:44 AM
Last Post: Guest
  Security System using Biometrics ( Download Full Seminar Report ) computer science crazy 7 10,339 02-02-2013, 03:56 PM
Last Post: seminar details
  Network security and protocols project topics 1 2,231 24-01-2013, 12:41 PM
Last Post: seminar details

Forum Jump: