'Malicious user' diaporamas de présentation

15-446 Distributed Systems Spring 2009

15-446 Distributed Systems Spring 2009. L -27 Social Networks and Other Stuff. Overview. Social Networks Multiplayer Games Class Feedback Discussion. launch sybil attack. Background: Sybil Attack. honest. Sybil attack : Single user pretends many fake/sybil identities

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Outline

Outline. Introduction Background Distributed Database Design Database Integration Semantic Data Control View Management Data Security Semantic Integrity Control Distributed Query Processing Multidatabase Query Processing Distributed Transaction Management Data Replication

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NoTamper : Automatic Blackbox Detection of Parameter Tampering Opportunities in Web Applications

NoTamper : Automatic Blackbox Detection of Parameter Tampering Opportunities in Web Applications. Prithvi Bisht , Timothy Hinrichs , Nazari Skrupsky , Radoslaw Bobrowicz , V.N. Venkatakrishnan University of Illinois at Chicago, USA ACM CCS (Oct,2010) .

558 views • 36 slides

Disclaimer

Disclaimer. This is a technical session that contain non-technical content. Get relaxed so to get ready for some details. We will have fun because we will take seriously. Build a Security Intelligence Center ( SiC ). Know your enemy tactics and motives Ahmed A. Selim

581 views • 33 slides

SybilGuard Defending Against Sybil Attacks via Social Networks

SybilGuard Defending Against Sybil Attacks via Social Networks. Authors Haifeng Yu, Michael Kaminsky , Phillip B. Gibbons , Abraham Flaxman . Presented by: Jonathan di Costanzo & Muhammad Atif Qureshi. launch sybil attack. Background: Sybil Attack. honest.

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Memory Protection: Kernel and User Address Spaces

Memory Protection: Kernel and User Address Spaces. Andy Wang Operating Systems COP 4610 / CGS 5765. Up to This Point. Threads provide the illusion of an infinite number of CPUs On a single processor machine Memory management provides a different set of illusions Protected memory

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Unix Security

Unix Security. Topics: Local Vulnerabilities and exposures Local Vulnerability and exposure countermeasures Auditing your system from the inside Remote Vulnerabilities and exposures Remote Vulnerability countermeasures Auditing your system from the outside.

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PBDM: A Flexible Delegation Model in RBAC Xinwen Zhang, Sejong Oh George Mason University

PBDM: A Flexible Delegation Model in RBAC Xinwen Zhang, Sejong Oh George Mason University Ravi Sandhu George Mason University and NSD Security. Outline. Motivations Related Works PBDM0: user-to-user delegation PBDM1: user-to-user delegation PBDM2: role-to-role delegation

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Section 3.2: Operating Systems Security

Section 3.2: Operating Systems Security. The Boot Sequence. When a computer is turned on, it first executes code stored in a firmware component known as the BIOS (basic input/output system).

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