A Lightweight Digital Signature Cryptographic Protocol for Authentication and Integrity Based on Location

摘要

The shipping of digital documents, from a sender to a receiver, must keep certain properties, including the authenticity of the source and message integrity. These properties can be achieved through cryptographic protocols, which define the way in which a cryptographic primitive should be used during a communication process. As an additional function to the mentioned properties, GeoLock is a function that is used to add the coordinates of a receiver to the digital signature primitive or to other cryptographic primitives, which helps to prove that such entity is located in the right place and is able to verify a generated signature avoiding antispoof receivers. However, the use of public key cryptographic primitives with the GeoLock function on mobile devices, involves considering the performance of all cryptographic operations together. Considering the aforementioned, in this study a lightweight cryptographic protocol based on the digital signature primitive and GeoLock is presented in order to meet authentication and integrity based on location. The obtained results show that the proposed protocol is more efficient if compared to related works, as less cryptographic operations are required.