Often, analysts have to face a challenging situation when formally verifying the implementation of a security protocol: they need to build a model of the protocol from only poorly or not documented code, and with litt...
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ISBN:
(纸本)9781538626672
Often, analysts have to face a challenging situation when formally verifying the implementation of a security protocol: they need to build a model of the protocol from only poorly or not documented code, and with little or no help from the developers to better understand it. Security protocols implementations frequently use services provided by libraries coded in the C programming language;automatic tools for code-level reverse engineering offer good support to comprehend the behavior of code in object-oriented languages but are ineffective to deal with libraries in C. Here we propose a systematic, yet human-dependent approach, which combines the capabilities of state-of-the-art tools in order to help the analyst to retrieve, step by step, the security protocol specifications from a library in C. Those specifications can then be used to create the formal model needed to carry out the analysis.
State changes over time are inherent characteristics of stateful applications. So far, there are almost no attempts to make the past application history programmatically accessible or even modifiable. This is primaril...
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Nowadays mobile users expect data to be retrieved with minimal effort. Many iOS Mobile applications such as Yelp, ***, and Groupon provide the users simplified data within their application. This project implements a ...
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ISBN:
(纸本)9781450365239
Nowadays mobile users expect data to be retrieved with minimal effort. Many iOS Mobile applications such as Yelp, ***, and Groupon provide the users simplified data within their application. This project implements a method to retrieve data from a third-party application and exhibit data with less effort than current iOS applications. Our approach uses iOS App extension that allows developers to extend customized functionalities. With app extensions, users achieve the privilege to interact with mobile applications while performing other tasks on the mobile device. For instance, a user might want to see the closest top ranked 5 restaurants in the area. In Yelp the user needs to follow multiple steps for that kind of information. With our extension, just a simple swipe down is sufficient to activate the notification center. Then the user is permitted to obtain that information without any previous application interaction. Users can view most recent data from their notification center from a third-party application.
To improve the presentation of B2B (Business to Business) and B2C (Business to Consumer) regarding venture wide Service oriented Architecture (SOA), we need middleware interoperability particularly with agent building...
To improve the presentation of B2B (Business to Business) and B2C (Business to Consumer) regarding venture wide Service oriented Architecture (SOA), we need middleware interoperability particularly with agent building to be specific CORBA (Common object Request Broker Architecture) proposed by object Management Group ORB programming named ORBeline. Unmistakable models for client server correspondences have just been created and executed specifically Handle Driven ORB (H-ORB), Forwarding ORB (F-ORB), and the Adaptive ORB (A- ORB). This paper concentrates how to improve the presentation of the interoperability in Adaptive ORB (A-ORB) as for client server collaboration in N-level engineering alongside multithreading condition. We have presented a strategy called linear discriminant interoperable support learning method and how it will in general be used for improving the presentation of interoperability is examined. The outcome gives the framework conduct especially the impact of message measure, between hub deferrals; torpidity and flexibility of solicitation/reaction administration times for the A-ORB engineering are broke down.
The proceedings contain 56 papers. The topics discussed include: hardware multithreaded transactions;Slim NoC: a low-diameter on-chip network topology for high energy efficiency and scalability;skyway: connecting mana...
ISBN:
(纸本)9781450349116
The proceedings contain 56 papers. The topics discussed include: hardware multithreaded transactions;Slim NoC: a low-diameter on-chip network topology for high energy efficiency and scalability;skyway: connecting managed heaps in distributed big data systems;espresso: brewing Java for more non-volatility with non-volatile memory;enhancing cross-ISA DBT through automatically learned translation rules;Gloss: seamless live reconfiguration and reoptimization of stream programs;filtering translation bandwidth with virtual caching;automatic matching of legacy code to heterogeneous APIs: an idiomatic approach;understanding and auto-adjusting performance-sensitive configurations;CALOREE: learning control for predictable latency and low energy;Darwin: a genomics co-processor provides up to 15,000x acceleration on long read assembly;liquid silicon-Monona: a reconfigurable memory-oriented computing fabric with scalable multi-context support;exploiting dynamic thermal energy harvesting for reusing in smartphone with mobile applications;quantum computing is getting real: architecture, PL, and OS roles in closing the gap between quantum algorithms and machines;DAMN: overhead-free IOMMU protection for networking;statistical reconstruction of class hierarchies in binaries;FCatch: automatically detecting time-of-fault bugs in cloud systems;and LTRF: enabling high-capacity register files for GPUs via hardware/software cooperative register prefetching.
JavaScript has seen meteoric growth in popularity as it has increasingly become the language of choice for developers, both for front-end web development and server code development through various JavaScript framewor...
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ISBN:
(纸本)9781450358033
JavaScript has seen meteoric growth in popularity as it has increasingly become the language of choice for developers, both for front-end web development and server code development through various JavaScript frameworks and ***. Part of the reason for its wide use is that it is a prototype based language with dynamic types, making it easy to learn and program in. This flexibility and ease of programming comes at the cost of performance. There are two sources of significant slowdown. First, since the number and type of properties of prototypes is dynamic, accessing a property involves a slow dictionary lookup, as opposed to it being present at a fixed offset from the base address. Second, the dynamism in type of values necessitates wrapping and unwrapping of values into objects with a variety of checks including for type of the value. To mitigate these performance problems, this paper proposes JSCore, a core specialized for JavaScript execution, that vastly reduces the performance degradation due to the above two causes. It uses a hardware lookup table to accelerate property access, and extends the data path to store data types with the data, nearly eliminating the second source of slowdown. Combining the two, JSCore accelerates real world JavaScript applications by 23%.
It has been 30 years since the first publication of TXL, and almost that long since its first public release in the *** newsgroup in 1991. TXL's original purpose was to provide rapid prototyping of new programming...
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It has been 30 years since the first publication of TXL, and almost that long since its first public release in the *** newsgroup in 1991. TXL's original purpose was to provide rapid prototyping of new programming languages and dialects by source-to-source syntactic transformation from new language features to old, and the first applications of TXL demonstrated its use in prototyping new features of the Turing programming language such as objects, polymorphism and interval arithmetic. Very rapidly it became apparent that TXL could be used for much more than that, and we quickly began to explore its wider application in software engineering, in particular to design recovery and code generation from models. With the arrival of the Year 2000 challenge in the mid -90s, TXL made its transition to industrial practice, and was used to analyze and reprogram billions of lines of Cobol, RPG and PL/I code at Legasys Corp and IBM Global Services in the years leading up to 2000.
Data availability is a key aspect of modern distributed systems. We discuss an extension of coordination languages based on tuple spaces with programming abstractions for sharing data and guaranteeing availability wit...
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ISBN:
(纸本)9781538649756
Data availability is a key aspect of modern distributed systems. We discuss an extension of coordination languages based on tuple spaces with programming abstractions for sharing data and guaranteeing availability with different consistency guarantees. Data can be spread over the system according to user-specified replica placement strategies and user-specified consistency requirements. The framework takes care then of low-level management of the replicas, so that the programmer can just focus on the business logic of the application. We advocate that the proposed programming primitives are beneficial for data-orientedapplications where different kinds of data may have different needs in terms of availability and consistency.
State changes over time are inherent characteristics of stateful applications. So far, there are almost no attempts to make the past application history programmatically accessible or even modifiable. This is primaril...
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ISBN:
(纸本)9781450357821
State changes over time are inherent characteristics of stateful applications. So far, there are almost no attempts to make the past application history programmatically accessible or even modifiable. This is primarily due to the complexity of temporal changes and a difficult alignment with prevalent programming primitives and persistence strategies. Retroactive computing enables powerful capabilities though, including computations and predictions of alternate application timelines, post-hoc bug fixes, or retroactive state explorations. We propose an event-driven programming model that is oriented towards serverless computing and applies retroaction to the event sourcing paradigm. Our model is deliberately restrictive, but therefore keeps the complexity of retroactive operations in check. We introduce RETRO-lambda, a runtime platform that implements the model and provides retroactive capabilites to its applications. While RETRO-lambda only shows negligible performance overheads compared to similar solutions for running regular applications, it enables its users to execute retroactive computations on the application histories as part of its programming model.
Lower-division courses in an Electrical and Computer Engineering Technology (ECET) program provide the background needed for introductory programming and embedded microprocessors. A C/C++ programming course emphasizes...
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