Thursday, 5 January 2012

GPRS Security Feature, Threats and Solution

The General Packet Radio Service (GPRS) is a new non-voice value added service that allows information to be sent and received across a mobile telephone network. It supplements today’s Circuit Switched Data and Short Message Service. GPRS is NOT related to GPS (the Global Positioning System), a similar acronym that is often used in mobile contexts.
Feature: The technical security offered by GPRS is very similar to that offered by GSM. GPRS has several unique features which can be summarized as:
Immediacy: GPRS facilitates instant connections whereby information can be sent or received immediately as the need arises. No dial-up modem connection is necessary. This is why GPRS users are sometimes referred to be as being "always connected". Immediacy is one of the advantages of GPRS (and SMS) when compared to Circuit Switched Data. High immediacy is a very important feature for time critical applications such as remote credit card authorization where it would be unacceptable to keep the customer waiting for even thirty extra seconds.
Speed: Theoretical maximum speeds of up to 171.2 kilobits per second (kbps) are achievable with GPRS using all eight timeslots at the same time. This is about three times as fast as the data transmission speeds possible over today’s fixed telecommunications networks and ten times as fast as current Circuit Switched Data services on GSM networks.
Threats:
Availability: The most common type of attack on availability is a denial of service (DOS) attack. There are several types of denial of service attacks that are possible on the GPRS.
Border Gateway bandwidth saturation: a malicious operator that is also connected to the same GPX may have the ability to generate a sufficient amount of network traffic directed at your Border Gateway.
Solution:
1.      Ingress and egress packet filtering
2.      GTP Traffic Shaping
3.      Implement IPSec tunnels with roaming partners

1 comment:

  1. Hi Phone, i found out that your post is a bit confusing as there is no links after one topic after topic. But the information provided individually itself is quite relevant and enough for the readers to know about the GPRS network for generally. And i can see that you did do your research well. My suggestion here is to link the topics. But generally, you did write the good post :)

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