Enhancing security and confidentiality in location-based data encryption algorithms

Abstract

With rapid growing of mobile networks and devices we can use them to send email, mobile commerce, theatre booking, etc. In such scenario, we need to Secure Communication. Secure communication is possible through encryption of data. However, most of the existent data encryption techniques are location-independent. Data encrypted with such techniques cannot restrict the location and time of data decryption. The concept of "Geoencryption" or "location-based encryption" is being developed for such a purpose. In this paper, we are going to investigate weaknesses in existing Geoencryption systems and propose some solutions for increase the safety and reliability in these systems. For this purpose we present a new geoencryption protocol that will allow mobile nodes to communicate to each other safely by restrict decoding a message in the specific location and time period. Receiver can only decrypt the ciphertext when the coordinate acquired form GPS receiver matches with the target coordinate. According to our experimental study, the approach can meet the confidentiality, authentication, simplicity, and practicability of security issues. As a result, the proposed approaches can improve the security and confidentiality in Geoencryption systems.

Enhancing Security Using Location and Time

“…Based on Position, Velocity and Time (PVT) of the recipient the Geo-Lock is computed using Geo-Lock mapping function [2]. A new concept of "Geo-encryption" and location-based encryption is developed to overcome the short comings of the above two systems [3]. Confidentiality, authentication, simplicity and practicability of security issues are met by this new encryption technique which uses GPS technology.…”

"Geo-Encryption Lite" - A location based Encryption Application for Android

“…To protect against tampering and spoofing, a signal authentication protocol, Timed Efficient Stream Loss-tolerant Authentication (TESLA) [8] is designed .Since then many efforts have been done to complete the above idea and fix its defects. To Overcome these defects, Rohollah karimi and Mohammad Kalantari [4] present a modified Geo protocol and improve its efficiency and applicability. Although it is possible to provide security features such as authentication, integrity and confidentiality.…”

“…So, for secure communication the concept of "Geo-Encryption" is introduced which is location dependent. It is an enhancement to traditional encryption that makes use of physical location or time as a mean to produce additional security and security features [9]. It allows data to be encrypted for a specific place or broad geographic area, and supports constraints in time as well as location.…”

Robust access control framework for mobile cloud computing network

“…Karimi et. al [22] presented a geoencryption protocol which allows the mobile nodes to communicate with each other by restriction when decoding a message in the specific location and time period. Similar technique was applied for mobile devices in [23].…”