I am an Assistant Professor in the 
Department of Mathematics and Computer Science at Santa Clara University. I received my PhD in Computer Science from Florida State University. I obtained my MSc from Florida State University and my BSc from University of Tehran. My research interests lies in Authentication, Usable security, Information security, Computer and Network security and privacy, and Digital forensics. I have worked on metrics for analyzing password strength and probabilistic techniques for more effective password cracking. I have also worked on search, identification and entity resolution in the Internet.

Research Interests

  • Authentication
  • Usable Security
  • Information Security
  • Computer and Network Security
  • Digital Forensics

Selected Publications

  • Gokila Dorai, Shiva Houshmand, Ibrahim Baggili
    I Know What You Did Last Summer: Your Smart Home Internet of Things and Your iPhone Forensically Ratting You Out
    ARES 2018 Proceedings of the 13th International Conference on Availability, Reliability, and Security
    Hamburg, Germany, August 2018 [ARES2018]

  • Shiva Houshmand, Sudhir Aggarwal. 
    Using Personal Information for Targeted Attacks in Grammar based Probabilistic Password Cracking
    Thirteenth Annual IFIP WG 11.9 International Conference on Digital Forensics 
    Orlando, Florida, January 2017 [PDF]

  • Shiva Houshmand
    Probabilistic Context-free Grammar based Password Cracking: Attack, Defense & Applications
    Electronic Thesis, Treatises and Dissertations, Paper 9615, Ph.D., Florida State University
    July 2015 [PDF]

  • Shiva Houshmand, Sudhir Aggarwal, Umit Karabiyik. 
    Identifying Passwords Stored on Disk 
    Eleventh Annual IFIP WG 11.9 International Conference on Digital Forensics 
    Orlando, Florida, January 2015, pages 195-213 (IFIP 2015)

  • Shiva Houshmand, Sudhir Aggarwal, Randy Flood. 
    Next Gen PCFG Password Cracking
    IEEE Transactions on Information Forensics and Security
    Volume 10, Issue 8, pages 1776-1791, 30 April 2015 (TIFS 2015)

  • Shiva Houshmand, Sudhir Aggarwal. 
    Building Better Passwords Using Probabilistic Techniques
    ACSAC'12: Proceedings of the 28th Annual Computer Security Applications Conference
    Orlando, Florida, December 2012, pages 109-118 (ACSAC 2012) 

  • Shiva Houshmand
    Analyzing Password Strength and Efficient Password Cracking
    Electronic Thesis, Treatises and Dissertations, Paper 3737, M.S., Florida State University
    June 2011 [PDF]


  1. Sudhir Aggarwal, Shiva Houshmand and Randy Flood, Probabilistic Password Cracking System, (U.S. Patent 9,438,419 09/06/2016).
  2. Sudhir Aggarwal, Shiva Houshmand and Charles Weir, System and Methods for Analyzing and Modifying Passwords, (U.S. Patent 9,524,393 12/20/2016).

Professional Service

    • 11th International Workshop on Security, Trust & Privacy for Software Applications (STPSA): 2016
    • ACM Conference on Data and Application Security and Privacy (CODASPY): 2016
    • IEEE Transactions on Information Forensics and Security: 2015
    • International Conference on Digital Forensics (IFIP): 2014, 2015, 2016
    • IEEE Communication and Information Systems Security Symposium (ICC): 2014
    • International Conf. on Security in Computer Networks & Distributed Systems(SNDS): 2014
    • Communication and Information System Security Symposium (CISS): 2014