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91 results on '"Stubblebine, Stuart"'

1. Secure Distributed Human Computation : (Extended Abstract)

Author

Gentry, Craig, Ramzan, Zulfikar, Stubblebine, Stuart, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Christianson, Bruce, editor, Crispo, Bruno, editor, Malcolm, James A., editor, and Roe, Michael, editor

Published
2009
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2. Reducing the Dependence of SPKI/SDSI on PKI

Author

Wang, Hao, Jha, Somesh, Reps, Thomas, Schwoon, Stefan, Stubblebine, Stuart, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Gollmann, Dieter, editor, Meier, Jan, editor, and Sabelfeld, Andrei, editor

Published
2006
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3. A Formal Privacy System and Its Application to Location Based Services

Author

Gunter, Carl A., May, Michael J., Stubblebine, Stuart G., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Martin, David, editor, and Serjantov, Andrei, editor

Published
2005
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4. Secure Distributed Human Computation

Author

Gentry, Craig, Ramzan, Zulfikar, Stubblebine, Stuart, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Patrick, Andrew S., editor, and Yung, Moti, editor

Published
2005
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7. Authentic Third-Party Data Publication

Author

Devanbu, Premkumar, Gertz, Michael, Martel, Charles, Stubblebine, Stuart G., Thuraisingham, Bhavani, editor, van de Riet, Reind, editor, Dittrich, Klaus R., editor, and Tari, Zahir, editor

Published
2001
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12. Unlinkable serial transactions

Author

Syverson, Paul F., Stubblebine, Stuart G., Goldschlag, David M., Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, and Hirschfeld, Rafael, editor

Published
1997
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14. Reasoning about Message Integrity

Author

Kailar, Rajashekar, Gligor, Virgil D., Stubblebine, Stuart G., Avižienis, A., editor, Kopetz, H., editor, Laprie, J. C., editor, Cristian, Flaviu, editor, Le Lann, Gerard, editor, and Lunt, Teresa, editor

Published
1995
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19. Stack and queue integrity on hostile platforms

Author

Devanbu, Premkumar T. and Stubblebine, Stuart G.

Subjects
Programming tutorial, Database design, Random access memory -- Management, Semiconductor industry -- Planning, Data structures -- Planning, Database design -- Planning
Published
2002

23. A Chat at the Old Phishin’ Hole

Author

Clayton, Richard, primary, Dean, Drew, additional, Jakobsson, Markus, additional, Myers, Steven, additional, Stubblebine, Stuart, additional, and Szydlo, Michael, additional

Published
2005
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24. A Chat at the Old Phishin’ Hole

Author

Clayton, Richard, Dean, Drew, Jakobsson, Markus, Myers, Steven, Stubblebine, Stuart, Szydlo, Michael, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Patrick, Andrew S., editor, and Yung, Moti, editor

Published
2005
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33. Reducing the Dependence of Trust-Management Systems on PKI

Author

Wang, Hao, Jha, Somesh, Reps, Thomas, Schwoon, Stefan, and Stubblebine, Stuart

Abstract

Trust-management systems address the authorization problem in distributed systems by defining a formal language for expressing authorization and access-control policies, and relying on an algorithm to determine when a specific request can be granted. For authorization in distributed systems, trust-management systems offer several advantages over other approaches, such as support for delegation and making authorization decisions in a decentralized manner. This paper focuses on a popular trust-management system SPKI/SDSI. Although SPKI/SDSI is an attractive system for authorization in distributed systems, it has seen limited deployment. One of the major hurdles in deploying SPKI/SDSI is that it is PKI-based, i.e., every principal is required to have a public-private key pair. We present an approach that combines SPKI/SDSI with a widely-deployed authentication system, Kerberos, to reduce reliance of SPKI/SDSI on PKI. In our approach, only sites need public-private key pairs. We believe that reducing the reliance of SPKI/SDSI on PKI will facilitate its wider deployment. We also have implemented a prototype of our technique.

Published
2005

40. Reducing the Dependence of SPKI/SDSI on PKI.

Author

Gollmann, Dieter, Meier, Jan, Sabelfeld, Andrei, Hao Wang, Jha, Somesh, Reps, Thomas, Schwoon, Stefan, and Stubblebine, Stuart

Abstract

Trust-management systems address the authorization problem in distributed systems. They offer several advantages over other approaches, such as support for delegation and making authorization decisions in a decentralized manner. Nonetheless, trust-management systems such as KeyNote and SPKI/SDSI have seen limited deployment in the real world. One reason for this is that both systems require a public-key infrastructure (PKI) for authentication, and PKI has proven difficult to deploy, because each user is required to manage his/her own private/public key pair. The key insight of our work is that issuance of certificates in trust-management systems, a task that usually requires public-key cryptography, can be achieved using secret-key cryptography as well. We demonstrate this concept by showing how SPKI/SDSI can be modified to use Kerberos, a secret-key based authentication system, to issue SPKI/SDSI certificates. The resulting trust-management system retains all the capabilities of SPKI/SDSI, but is much easier to use because a public key is only required for each SPKI/SDSI server, but no longer for every user. Moreover, because Kerberos is already well established, our approach makes SPKI/SDSI-based trust management systems easier to deploy in the real world. [ABSTRACT FROM AUTHOR]

Published
2006
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41. Secure Distributed Human Computation.

Author

Patrick, Andrew, Yung, Moti, Gentry, Craig, Ramzan, Zulfikar, and Stubblebine, Stuart

Abstract

We suggest a general paradigm of using large-scale distributed computation to solve difficult problems, but where humans can act as agents and provide candidate solutions. We are especially motivated by problem classes that appear to be difficult for computers to solve effectively, but are easier for humans; e.g., image analysis, speech recognition, and natural language processing. This paradigm already seems to be employed in several real-world scenarios, but we are unaware of any formal and unified attempt to study it. Nonetheless, this concept spawns interesting research questions in cryptography, algorithm design, human computer interfaces, and programming language / API design, among other fields. There are also interesting implications for Internet commerce and the B24b model. We describe this general research area at a high level and touch upon some preliminary work; a more extensive treatment can be found in [6]. [ABSTRACT FROM AUTHOR]

Published
2005
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42. A Formal Privacy System and Its Application to Location Based Services.

Author

Martin, David, Serjantov, Andrei, Gunter, Carl A., May, Michael J., and Stubblebine, Stuart G.

Abstract

There are a variety of well-known models for access control developed for purposes like formally modeling the access rights on files, databases, and web resources. However, the existing models provide an inadequate representation of a number of concepts that are important when modeling privacy rights in distributed systems. We present an analog of the access control matrix designed to model such concepts. Our formalism, which we call a privacy system, empashizes the management of data and actions that affect the privacy of subjects. We motivate privacy systems, describe them mathematically, and illustrate their value in an architecture based on Personal Digital Rights Management (PDRM), which uses DRM concepts as a foundation for the specification and negotiation of privacy rights. This illustration is carried out throuh a case study of a privacy-respecting system for location based services. Our prototype, which we call AdLoc, manages advertising interupts on PDAs based on their location as determined by WiFi sightings in accordance with contracts written in the DRM language XrML. [ABSTRACT FROM AUTHOR]

Published
2005
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44. Cryptographic verification of test coverage claims

Author

Devanbu, Premkumar Thomas and Stubblebine, Stuart G.

Subjects
Algorithm, Data security issue, Debugging/testing software, Software -- Verification, Software engineering -- Research, Computer software industry -- Product information, Debugging software -- Product information
Published
2000

47. Resilient authentication using path independence

Author

Reiter, Michael K. and Stubblebine, Stuart G.

Subjects
Public key encryption -- Research, Digital signatures -- Research, Authentication -- Research, Algorithms -- Usage, Distributed processing (Computers) -- Research
Published
1998

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