| Summary: | The Global Navigation Satellite System (GNSS) is a vital technology in a multitude of
smart devices today. Ensuring the accuracy and authenticity of GNSS signals is crucial for
secure positioning and navigation. However, GNSS spoofing attacks pose a significant
threat to these systems. This paper focuses on improving the accuracy and user experience
of an Android-based GNSS signal authentication application by employing a Navigation
Message Authentication (NMA) scheme. Building upon previous work by Yu Han Chu et
al. and Neo Zhen Ting et al., this project aims to enhance the existing Android application
through error identification, evaluation, and correction, along with user interface
enhancements. After implementing the modifications, test results from various
environments have shown an improvement in overall accuracy without spoofing signals
from around 95% to over 99%.
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