GSM is susceptible blocking interference when using communication services to transmit data

Perfectjammer 2022/11/03

　　The GSM network has four separate parts that work together to function as a whole: the mobile device itself, the base station subsystem (BSS), the network switching subsystem (NSS) and the operation and support subsystem (OSS).Researchers published open source software to sniff packets in the GPRS network.In many places where the use of mobile phones is prohibited, interference devices that shield the basic communication of mobile phones, also known as gsm jammers, are installed.

GSM is susceptible blocking interference when using communication services to transmit data

　　The NSS portion of the GSM network architecture, often called the core network, tracks the location of callers to enable the delivery of cellular services.GSM uses GPRS, a packet-based communication service, to transmit data, such as through web browsing.The portable jammer is convenient for us to use indoors and outdoors, while the desktop jammer uses a variety of antenna designs.

　　The mobile device connects to the network via hardware.GSM uses authentication measures, such as challenge-response authentication, which prompts a user to provide a valid answer to a question, and a preshared key that is in the form of a password or passphrase.It consists of two main components: the base transceiver station (BTS) and the base station controller (BSC).The BTS contains the equipment that communicates with the mobile phones, largely the radio transmitter receivers and antennas, while the BSC is the intelligence behind it.

　　The BSS handles traffic between the cellphone and the NSS.Because many GSM network operators have roaming agreements with foreign operators, users can often continue to use their phones when they travel to other countries.Although GSM was designed as a secure wireless system, it can still experience attacks.These components perform different functions, such as routing calls and Short Message Service (SMS) and authenticating and storing caller account information via SIM cards.

　　The BSC communicates with and controls a group of base transceiver stations.However, the algorithms for both A5/1 and A5/2 have been broken and published and are therefore susceptible to plaintext attacks.There are a few cryptographic security algorithms that GMS employs, including stream ciphers that encrypt plaintext digits.When purchasing gsm jammer, we need to know our own needs.

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