Books by "Peter C. Bloch"
5 books found
Study Edition
Information Flow Based Security Control Beyond RBAC
by Klaus-Peter Fischer-Hellmann
2012 · Springer Science & Business Media
Role-based access control (RBAC) is a widely used technology to control information flows as well as control flows within and between applications in compliance with restrictions implied by security policies, in particular, to prevent disclosure of information or access to resources beyond restrictions defined by those security policies. Since RBAC only provides the alternatives of either granting or denying access, more fine-grained control of information flows such as “granting access to information provided that it will not be disclosed to targets outside our organisation during further processing” is not possible. In business processes, in particular those spanning several organisations, which are commonly defined using business process execution language (BPEL), useful information flows not violating security policy-implied limitations would be prevented if only the access control capabilities offered by RBAC are in use. The book shows a way of providing more refined methods of information flow control that allow for granting access to information or resources by taking in consideration the former or further information flow in a business process requesting this access. The methods proposed are comparatively easy to apply and have been proven to be largely machine-executable by a prototypical realisation. As an addition, the methods are extended to be also applicable to BPEL-defined workflows that make use of Grid services or Cloud services. IT Security Specialists Chief Information Officers (CIOs) Chief Security Officers (CSOs) Security Policy and Quality Assurance Officers and Managers Business Process and Web/Grid/Cloud Service Designers, Developers, Operational Managers Interested Learners / Students in the Field of Security Management.
In war, victory can be held hostage to seemingly insignificant incidents–chance events, opportunities seized or cast aside–that can derail the most brilliant military strategies and change the course of history. What if the Japanese had conquered India and driven out the British? What if the strategic link between the United States and Australia had been severed? What if Vice Admiral Nagumo had launched a third attack on Pearl Harbor? What if the U.S. Navy’s gamble at Midway had backfired? Ten leading military historians ask these and other questions in this fascinating book. The war with Japan was rife with difficult choices and battles that could have gone either way. These fact-based alternate scenarios offer intriguing insights into what might have happened in the Pacific during World War II, and what the consequences would have been for America.
A chronicle of the frontline photographers of World War II recounts the sometimes harrowing exploits of the American Military Photographers, men armed with cameras who accompanied the Army, Marines, Air Force, and Navy into battle.
Semiconductor Quantum Light Sources
by Peter Michler, Simone Luca Portalupi
2024 · Walter de Gruyter GmbH & Co KG
The work provides fundamental expertise of quantum optics and photonic quantum technology with particular attention to the generation of non-classical light with semiconductor nanostructures. The book is written by experimentalists for experimentalists at various career stages: physics and engineering students, researchers in quantum optics, industry experts in quantum technology. A didactical structure is followed, having in each chapter overview and summary of the discussed topics, allowing for a quick consultation. The book covers: Basics of quantum optics. Spectroscopy, time-resolved measurements, quantum optics techniques. Principles of non-classical light emission. Excitation of semiconductor nanostructures and their manipulation. Growth and nanofabrication of devices. Targeting physics and quantum engineering students as well as research scientists and engineers in academia and industry it provides the practical base for understanding quantum light sources and for evaluating their performances. Thus it enables readers to gain the necessary knowledge to understand, design and test novel quantum light sources for various implementations as quantum key distribution, quantum repeaters, quantum sensors and photonic quantum information processing.