Projects per year
Personal profile
Biography
I am a researcher in privacy, cryptography and information security:
Privacy :
* Quantifying privacy risks that may lead to user tracking
* Developing formal methods to assess privacy risks of released datasets
* Developing algorithms for differentially private access to data
Cryptography :
* Protocols for private outsourced computation Protocols for secure multiparty computation
* Constructing cryptographic primitives
* Cryptanalysis
Information security:
* Observation resistant authentication protocols for unaided humans
* Continuous/implicit authentication systems using behavioural biometrics
* Mathematical attacks on authentication protocols
My research has involved different areas of mathematics such as number theory, computational geometry, information theory, probability, statistics and combinatorics, as well as different areas of computer science such as cryptography, differential privacy, algorithms, computational complexity and machine learning.
External positions
Research Scientist, CSIRO
Apr 2014 → …
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Network
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OMQCSH: Optus Macquarie University Cyber Security Hub
Kaafar, D., Schreer, B., Selvadurai, N., Wiggins, M., Sheedy, E., Leung, P., Asghar, H., Ikram, M., Shevchenko, P., Berkovsky, S., Huang, Y., Harrison, N., McCombie, S., Bayl-Smith, P., Zhang, X., Yang, J., Modabber, S., Middlebrook, L. & Goldbarsht, D.
2/12/16 → …
Project: Research
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Research Outputs
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A blockchain-enabled anonymous-yet-traceable distributed key generation
Dehez-Clementi, M., Lacan, J., Deneuville, J. C., Asghar, H. & Kaafar, D., 2021, Proceedings - 2021 IEEE International Conference on Blockchain, Blockchain 2021. Xiang, Y., Wang, Z., Wang, H. & Niemi, V. (eds.). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), p. 257-265 9 p. (Proceedings - 2021 IEEE International Conference on Blockchain, Blockchain 2021).Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review
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Do auto-regressive models protect privacy? Inferring fine-grained energy consumption from aggregated model parameters
Sheikh, N. U., Asghar, H. J., Farokhi, F. & Kaafar, M. A., 27 Jul 2021, (E-pub ahead of print) In: IEEE Transactions on Services Computing. 12 p.Research output: Contribution to journal › Article › peer-review
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Exploiting behavioral side channels in observation resilient cognitive authentication schemes
Zhao, B. Z. H., Asghar, H. J., Kaafar, M. A., Trevisan, F. & Yuan, H., Jan 2021, In: ACM Transactions on Privacy and Security. 24, 1, p. 1-33 33 p., 1.Research output: Contribution to journal › Article › peer-review
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On the (in)feasibility of attribute inference attacks on machine learning models
Zhao, B. Z. H., Agrawal, A., Coburn, C., Asghar, H. J., Bhaskar, R., Kaafar, M. A., Webb, D. & Dickinson, P., 2021, Proceedings - 2021 IEEE European Symposium on Security and Privacy, Euro S&P 2021. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), p. 232-251 20 p. (Proceedings - 2021 IEEE European Symposium on Security and Privacy, Euro S&P 2021).Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review
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Trace recovery: inferring fine-grained trace of energy data from aggregates
Sheikh, N. U., Lu, Z., Asghar, H. J. & Kaafar, M. A., 2021, Proceedings of the 18th International Conference on Security and Cryptography, SECRYPT 2021. di Vimercati, S. D. C. & Samarati, P. (eds.). Setúbal, Portugal: SciTePress, p. 283-294 12 p. (Proceedings of the International Conference on Security and Cryptography; no. 18).Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review
Open AccessFile1 Downloads (Pure)
Prizes
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ACM AsiaCCS 2019 Best Paper Award
Zhao, B. Z. H. (Recipient), Ikram, Muhammad (Recipient), Asghar, Hassan (Recipient), Kaafar, Dali (Recipient), Abdelberi, C. (Recipient) & Thilakarathna, K. (Recipient), 10 Jul 2019
Prize: Other distinction
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Activities
- 1 Other
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Submission to the NSW Legislative Council Inquiry into Cybersecurity, Dali Kaafar, Hassan Jameel Asghar, Muhammad Ikram, Niloufer Selvadurai, 2020.
Dali Kaafar (Participant), Hassan Asghar (Participant), Muhammad Ikram (Participant) & Niloufer Selvadurai (Participant)
2020Activity: Other