Efficient Encryption Schemes for Image in Airborne Surveillance System

  • Munira Al Ali

Student thesis: Master's Thesis


Communication channels and multimedia data, specifically those that are highly confidential or contain very critical information, can be attacked and manipulated by hackers and online intruders. That is why researchers in the field of information security have been working on techniques for securing images communicated through surveillance systems like the Wide Area Surveillance System (WASS). The Advanced Encryption Standard (AES) algorithm is among the best encryption techniques for it can resist known attacks, its coding is fast, and it has a simple design. For a WASS system with an aircraft and a ground station, efficient image encryption with AES can guarantee confidentiality while supporting authenticity, and integrity. Our project simulates a point-to-point communication WASS system that generates grey-scale images during the surveillance operation from the air. Our solution consists of three main processes: encryption, decryption, and key generation. Channel encryption currently available for WASS systems has a number of limitations including the incompatibility with point-to-point schemes, and the inability to deliver lightweight key management. Therefore, our approach is layering application-layer encryption above channel encryption. We apply the hash function SHA1 (Secure Hash Algorithm 1) to generate keys of 16 bytes randomly. Our system provides secure aircraft-to-ground communication necessary for air surveillance applications .
Date of AwardJun 2017
Original languageAmerican English
SupervisorErnesto Damiani (Supervisor)


  • WASS
  • Application layer
  • AES Encryption.

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