International Journal of Engineering Trends and Technology
There is lots of work related to the security of cellular phones with respect to GSM and UMTS. But as per the paper, there is not a proper investigation related to the security aspects of satellite phones. Security plays an important role for satellite phones because of their application domains which are sensitive in nature (e.g., natural disaster areas or military areas). In this paper, the encryption systems used in two existing satellite phones standards, GMR-1 and GMR-2 are analyzed.