Sacha Brostoff

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Sacha Brostoff PortraitResearch Associate

Office: 6.07, Malet Place Engineering
Tel: +44 020 7679 0351
Fax: +44 020 7387 1397
Email: s.brostoff [at] cs.ucl.ac.uk

Research Interests

I'm currently working on the Privacy Value Networks project (PVNets), looking at issues around personally identifiable information, how it is perceived over time by different stakeholders, and better being able to assess the costs and benefits of collecting it for companies or government organisations.

I maintain an interest in usability of computer security ("hci-sec") generally, with a particular focus on authentication mechanisms. My PhD thesis looked at computer password problems for British Telecom employees.

Publications & Talks

Peer reviewed papers

2005

Brostoff, S., Sasse, M. A., Chadwick. D., Cunningham, J., Mbanaso, U., and Otenko, S. (2005) R-What? Development of a Role-Based Access Control (RBAC) Policy-Writing Tool for e-Scientists. Software: Practice and Experience, 35(9):835-856. [pdf]

schraefel, m. c., Brostoff, S., Cooke, R., Stevens, R. and Gibson, A. (2005) Transparent interaction; dynamic generation: context histories for shared science. In: workshop ECHISE 2005 - 1st International Workshop on Exploiting Context Histories in Smart Environments held in Conjunction with The Third Internationl Conference on Pervasive Computing 2005, May 11, 2005, Munich, Germany. [link]

2003

Brostoff, S. and Sasse, M.A. (2003), “Ten strikes and you're out": Increasing the number of login attempts can improve password usability. in CHI 2003 Workshop on Human-Computer Interaction and Security Systems, (Ft. Lauderdale). [pdf]

2002

Sasse, A., Brostoff, S., & Weirich, D. (2002). Transforming the ‘weakest link’ — a human-computer interaction approach to usable and effective security. In R. Temple & J. Regnault (Eds.), Internet and wireless security (pp. 243-258). London: IEE

2001

Brostoff, S., & Sasse, M. A. (2001, September). Safe and Sound: a safety-critical approach to security. Position paper presented at the New Security Paradigms Workshop 2001, Cloudcroft, New Mexico. [link]

Sasse, A., Brostoff, S., & Weirich, D. (2001). Transforming the ‘weakest link’ — a human / computer interaction approach to usable and effective security. BT technology journal, 19(3), 122-131. [link]

2000

Brostoff, S., & Sasse, A. (2000, September). Are Passfaces more usable than passwords? A field trial investigation. In McDonald S. et al (Eds) ‘People and Computers XIV - Usability or Else’, Proceedings of HCI 2000, Sunderland, UK, pp 405-424, Springer. [pdf]

Others

2005

Gibson, A., Stevens, R., Cooke, R., Brostoff, S. and schraefel, m. c. (2005) myTea: Connecting the Web to Digital Science on the Desktop. Technical Report Oct2005-1temp, ECS, U Southampton. (Unpublished) [link]

2004

Brostoff, A. (2004) Improving Password System Effectiveness. Ph.D. Thesis at UCL. Supervisor: M. Angela Sasse. [pdf]

 

Research Themes

Security

Research Projects

PVNets