• BlockTag: Design and applications of a tagging system for blockchain analysis 

      Boshmaf, Yazan; Al Jawaheri, Husam; Al Sabah, Mashael ( Springer New York LLC , 2019 , Conference Paper)
      Annotating blockchains with auxiliary data is useful for many applications. For example, criminal investigation of darknet marketplaces, such as Silk Road and Agora, typically involves linking Bitcoin addresses, from which ...
    • Measurement and Analysis of Bitcoin Transactions of Ransomware 

      Basil Al Jawaheri, Husam; Al Sabah, Mashael; Boshmaf, Yazan ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)
      Recently, more than 100,000 cases for ransomware attacks were reported in the Middle East, Turkey and Africa region [2]. Ransomware is a malware category that limits the access of users to their files by encrypting them. ...
    • PriviPK: Certificate-less and secure email communication 

      AlSabah, Mashael; Tomescu, Alin; Lebedev, Ilia; Serpanos, Dimitrios; Devadas, Srini ( Elsevier Ltd , 2017 , Article)
      We introduce PriviPK, an infrastructure that is based on a novel combination of certificateless (CL) cryptography and key transparency techniques to enable e2e email encryption. Our design avoids (1) key escrow and deployment ...
    • SLiFi: Exploiting Visible Light Communication VLC to Authenticate WiFi Access Points 

      Amin, Hafsa; Asadulla, Faryal; Jaffar, Aisha; Oligeri, Gabriele; Al-Sabah, Mashael ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)
      This work presents an effective and efficient solution (SLiFi) to the evil twin attack in wireless networks. The evil twin is a rogue Wifi Access Point (AP) that pretends to be an authentic one by using the same network ...