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SOUPS
2010
ACM
15 years 3 months ago
A closer look at recognition-based graphical passwords on mobile devices
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
Paul Dunphy, Andreas P. Heiner, N. Asokan
IFIP
1999
Springer
15 years 4 months ago
Virtual environments in educational networks
: The field of Virtual Environments (VEs) is rapidly evolving into a new means of communication and accessing information, likely to overcome many existent technologies. However, b...
Christos Bouras, Agisilaos Konidaris, Afrodite Sev...
CHI
2008
ACM
16 years 7 days ago
Accountabilities of presence: reframing location-based systems
How do mobility and presence feature as aspects of social life? Using a case study of paroled offenders tracked via Global Positioning System (GPS), we explore the ways that locat...
Emily Troshynski, Charlotte P. Lee, Paul Dourish
MOBILITY
2009
ACM
15 years 6 months ago
Feasibility evaluation of a communication-oriented P2P system in mobile environments
We present the feasibility evaluation of a structured communication-oriented Peer-to-Peer (P2P) system being used in mobile environments in this paper. The different levels of chu...
Zhonghong Ou, Erkki Harjula, Otso Kassinen, Mika Y...
XMLSEC
2003
ACM
15 years 5 months ago
An access control framework for business processes for web services
Business Processes for Web Services are the new paradigm for the lightweight integration of business from different enterprises. Whereas the security and access control policies ...
Hristo Koshutanski, Fabio Massacci