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As society rushes to digitize sensitive information and services, it is imperative to adopt adequate security protections. However, such protections fundamentally conflict with the benefits we expect from commodity computers. In other words, consumers and businesses value commodity computers because they provide good performance and an abundance of features at relatively low costs. Meanwhile, attempts to build secure systems from the ground up typically abandon such goals, and hence are seldom adopted. In this book, I argue that we can resolve the tension between security and features by leveraging the trust a user has in one device to enable her to securely use another commodity device or service, without sacrificing the performance and features expected of commodity systems. At a high level, we support this premise by developing techniques to allow a user to employ a small, trusted, portable device to securely learn what code is executing on her local computer. Rather than entrusting her data to the mountain of buggy code likely running on her computer, we construct an on-demand secure execution environment which can perform security-sensitive tasks and handle private data in complete isolation from all other software (and most hardware) on the system. Meanwhile, non-security-sensitive software retains the same abundance of features and performance it enjoys today. Having established an environment for secure code execution on an individual computer, we then show how to extend trust in this environment to network elements in a secure and efficient manner. This allows us to reexamine the design of network protocols and defenses, since we can now execute code on endhosts and trust the results within the network. Lastly, we extend the user's trust one more step to encompass computations performed on a remote host (e.g., in the cloud). We design, analyze, and prove secure a protocol that allows a user to outsource arbitrary computations to commodity computers run by an untrusted remote party (or parties) who may subject the computers to both software and hardware attacks. Our protocol guarantees that the user can both verify that the results returned are indeed the correct results of the specified computations on the inputs provided, and protect the secrecy of both the inputs and outputs of the computations. These guarantees are provided in a non-interactive, asymptotically optimal (with respect to CPU and bandwidth) manner. Thus, extending a user's trust, via software, hardware, and cryptographic techniques, allows us to provide strong security protections for both local and remote computations on sensitive data, while still preserving the performance and features of commodity computers. Получить ссылку |
Secure PHP Development: Building 50 Practical Applications
Автор: Mohammed J. Kabir
Год издания:
The personal home page (PHP) server-side scripting language is particular well adapted to connecting HTML-based web pages to a backend database for dynamic content. This book explains the entire nuts-and-bolts process of the PHP application life cycle: requirements, design, development, maintenance and tuning. It shows how PHP can be used to design and develop highly manageable and secure applications to solve practical problems.
Writ as a simplified form of civil procedure. Writ of execution
Автор: Николай Камзин
Год издания:
The idea of the simplified production, the need in certain cases, the «saving process» is certainly positive, but translating this idea into reality is possible only if the reasonable balance of security and economy. Writ – a court order, while the executive document, passed by a single judge on the basis of an application to recover money or for the recovery of personal property from the debtor to the requirements of the indisputable nature of the resulting documentary evidence of their creditor claims against the debtor. This is a simplified form of civil procedure used for the rapid and economical treatment of attention to the violation of state law if the creditor settlement of private law relations between the parties and some other chance. Core of this institution is that it is functionally a court decision in a particular case. But procedurally, on his receipt of the lender expends much less effort than he would have spent, as usual rebuilding their violated right.
The implementation of the economic cycle: freedom, trust, duty
Автор: Николай Камзин
Год издания:
Existentialism proclaims the idea of a man present, performing a search for meaning, making choices, self-determining in its relation to reality, possessing an active subjective entity. In the process of economic activity a person is faced with the action of their own will influence other areas of the will of the active agents. He needs arise that require his satisfaction, he is involved in the economic cycle, some of which sectors are investigated in this study, namely: entrepreneurship, as a consequence of the implementation of a new combination of natural factors, business risk as a source of entrepreneurial profit and a catalyst for economic activity, business as routine economic activities aimed at developing the existing building, international business, as economic activity is possible at a potential that is created by public constraints, international payments, as the movement of financial resources for a business, writ proceedings, as inevitable, the procedure of execution of mutual obligations with the participation of the public entity, collateral relations, as security relationships that create a safety buffer for the counterparty.
Учебно-методическое пособие к учебнику «Professional English in Use. ICT. For Computers and the Internet»
Автор: Коллектив авторов
Год издания:
Учебно-методическое пособие разработано преподавателями кафедры английского языка факультета экономики, которые ведут занятия на факультете бизнес-информатики и отделении программной инженерии НИУ ВШЭ. В ходе занятий со студентами по учебнику «Professional English in Use. ICT. For Computers and the Internet» Издательства Кембриджского университета (Cambridge University Press) со студентами НИУ ВШЭ возникла необходимость дополнить существующий курс глоссарием с русскоязычными соответствиями, заданиями на перевод и дополнительными заданиями, которые помогут совершенствовать навыки говорения. Цель создания пособия – помочь студентам и всем заинтересованным лицам расширить словарный запас и более комфортно ощущать себя в иноязычной профессиональной среде. Рекомендуется как дополнительный компонент к учебному курсу «Professional English in Use. ICT. For Computers and the Internet» для российских студентов неязыковых вузов, имеющих уровень языковой подготовки не ниже «pre-intermediate» и обучающихся по специальности «бизнес-информатика» и «программная инженерия».
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Mou-Setse: A Negro Hero; The Orphans' Pilgimage: A Story of Trust in God