Javascript Programming

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Revocable Identity-Based Broadcast Proxy Re-encryption for Data Sharing in Clouds

Cloud computing has become prevalent due to its nature of massive storage and vast computing capabilities. Ensuring a secure data sharing is critical to cloud applications. Recently, a number of identity-based broadcast proxy re-encryption (IB-BPRE) schemes have been proposed to resolve the problem. However, the IB-BPRE requires a cloud user (Alice) who wants to share data with a bunch of other users (e.g. colleagues) to participate the group shared key renewal process because Alice's private key is a prerequisite for shared key generation. This, however, does not leverage the benefit of cloud computing and causes the inconvenience for cloud users. Therefore, a novel security notion named revocable identity-based broadcast proxy re-encryption (RIB-BPRE) is presented to address the issue of key revocation in this work. In a RIB-BPRE scheme, a proxy can revoke a set of delegates, designated by the delegator, from the re-encryption key. The performance evaluation reveals that the proposed scheme is efficient and practical.

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KeyD: Secure Key-Deduplication with Identity-Based Broadcast Encryption

Deduplication, which can save storage cost by enabling us to store only one copy of identical data, becomes unprecedentedly significant with the dramatic increase in data stored in the cloud. For the purpose of ensuring data confidentiality, they are usually encrypted before outsourced. Traditional encryption will inevitably result in multiple different ciphertexts produced from the same plaintext by different users' secret keys, which hinders data deduplication. Convergent encryption makes deduplication possible since it naturally encrypts the same plaintexts into the same ciphertexts. One attendant problem is how to reliably and effectively manage a huge number of convergent keys. Several deduplication schemes have been proposed to deal with the convergent key management problem. However, they either need to introduce key management servers or require interaction between data owners. In this paper, we design a novel client-side deduplication protocol named KeyD without such an independent key management server by utilizing the identity-based broadcast encryption (IBBE) technique. Users only interact with the cloud service provider (CSP) during the process of data upload and download. Security analysis demonstrates that KeyD ensures data confidentiality and convergent key security, and well protects the ownership privacy simultaneously. A thorough and detailed performance comparison shows that our scheme makes a better tradeoff among the storage cost, communication and computation overhead. SYSTEM REQUIREMENTS: HARDWARE REQUIREMENTS:

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Dating with Scambots: Understanding the Ecosystem of Fraudulent Dating Applications

In this work, we are focusing on a new and yet uncovered way for malicious apps to gain profit. They claim to be dating apps. However, their sole purpose is to lure users into purchasing premium/VIP services to start conversations with other (likely fake female) accounts in the app. We call these apps as fraudulent dating apps. This paper performs a systematic study to understand the whole ecosystem of fraudulent dating apps. Specifically, we have proposed a three-phase method to detect them and subsequently comprehend their characteristics via analyzing the existing account profiles. Our observation reveals that most of the accounts are not managed by real persons, but by chatbots based on predefined conversation templates. We also analyze the business model of these apps and reveal that multiple parties are actually involved in the ecosystem, including producers who develop apps, publishers who publish apps to gain profit, and the distribution network that is responsible for distributing apps to end users. Finally, we analyze the impact of them to users (i.e., victims) and estimate the overall revenue. Our work is the first systematic study on fraudulent dating apps, and the results demonstrate the urge for a solution to protect users.

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A Data Sharing Protocol to Minimize Security and Privacy Risks of Cloud Storage in Big Data Era

A cloud-based big data sharing system utilizes a storage facility from a cloud service provider to share data with legitimate users. In contrast to traditional solutions, cloud provider stores the shared data in the large data centers outside the trust domain of the data owner, which may trigger the problem of data confidentiality. This paper proposes a secret sharing group key management protocol (SSGK) to protect the communication process and shared data from unauthorized access. Different from the prior works, a group key is used to encrypt the shared data and a secret sharing scheme is used to distribute the group key in SSGK. The extensive security and performance analyses indicate that our protocol highly minimizes the security and privacy risks of sharing data in cloud storage and saves about 12% of storage space.

(The published version of this article is here:
https://developing-an-organic-web-channel.ghost.io/2018/08/10/javascript-animation-the-basics/)

There are many ways to create animation on a website including some advanced tools that will write all the code for you. But even if you utilize those advanced tools it will be important to understand the code that is created for you. Many times the generated code is not exactly what you are looking for but can be adapted with a few quick coding adjustments. This still saves you time over coding animations from scratch.

These exercizes are designed to provide hands on training with animation techniques using JavaScript and some basic CSS. The final code for each example is included in my corresponding CodePen.

El propósito de la investigación es implementar un sistema de información web bajo la metodología de desarrollo ágil Unified Process (OpenUP) y la NTP/IEC 12207 para la gestión y evaluación de los grupos organizados de la Iglesia Universitaria Villa Unión de la Universidad Peruana Unión, filial Tarapoto. El sistema de información se desarrolló integrando el proceso de desarrollo de la NTP ISO/IEC 12207 en las fases de concepción, elaboración, construcción y transición de la metodología de desarrollo ágil OpenUP del Eclipse Process Framework, con el objeto de obtener un software que responda a estándares de calidad y cumpla con los requerimientos de los usuarios. Se aplicó el patrón de diseño de la arquitectura Modelo Vista Controlador (MVC) con la Programación Orientada a Objetos, y conexión a base de datos PostgreSQL 9.0 mediante el patrón de diseño Singleton, que permite dar una mejor respuesta a las peticiones del sistema. EL sistema de información fue desarrollado en el lenguaje de programación Java, uso de JavaScript, estilos CSS3 y HTML5. El sistema de información contempla las siguientes funcionalidades: registro de grupos organizados, registro de integrantes, gestión de cargos, registro de eventos, elaboración de programas de cada evento, control de asistencias, registros de sub grupos, registro de estudiantes de la Biblia, proceso de evaluación de los miembros del grupo, registro de bautismos, registro de incidencias y registro de publicaciones. La investigación es de tipo descriptiva porque recopiló y sistematizó la información de los grupos organizados, además, es de tipo aplicada, porque está orientada a un giro de negocio. El sistema de información fue validado por los usuarios del sistema que son los líderes de la organización eclesiástica. En conclusión este sistema de información sirve de soporte para la adecuada gestión de los grupos organizados.

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Normalization of Duplicate Records from Multiple Sources

Data consolidation is a challenging issue in data integration. The usefulness of data increases when it is linked and fused with other data from numerous (Web) sources. The promise of Big Data hinges upon addressing several big data integration challenges, such as record linkage at scale, real-time data fusion, and integrating Deep Web. Although much work has been conducted on these problems, there is limited work on creating a uniform, standard record from a group of records corresponding to the same real-world entity. We refer to this task as record normalization. Such a record representation, coined normalized record, is important for both front-end and back-end applications. In this paper, we formalize the record normalization problem, present in-depth analysis of normalization granularity levels (e.g., record, field, and value-component) and of normalization forms (e.g., typical versus complete). We propose a comprehensive framework for computing the normalized record. The proposed framework includes a suit of record normalization methods, from naive ones, which use only the information gathered from records themselves, to complex strategies, which globally mine a group of duplicate records before selecting a value for an attribute of a normalized record. We conducted extensive empirical studies with all the proposed methods. We indicate the weaknesses and strengths of each of them and recommend the ones to be used in practice.

Penggunaan dari HTML, CSS, dan JavaScript merupakan dasar-dasar dari pembuatan suatu web yang biasa ditampilkan dan bahkan diakses sehari-hari dalam bidang desain web-nya. Dalam laporan ini akan membahas dari JavaScript dan mempraktikkannya secara langsung sehingga dapat mengetahui langsung daripada penggunaan JavaScript tersebut.

Millions of people utilise social networking services all over the world. Users' interactions with social media sites like Twitter and Facebook have a huge impact on daily life, with some unfavourable consequences. Spammers have converted popular social networking sites into a target platform for disseminating a large number of irrelevant and harmful information. Twitter, for example, has grown to be one of the most widely utilised platforms of all time, allowing for an excessive amount of spam. Fake users send unwanted tweets to users in order to advertise services or websites, which not only harm actual users but also waste resources. Furthermore, the ability of spreading false information to users via fake identities has grown, resulting in the spread of hazardous materials. The detection of spammers and the identification of fraudulent users on Twitter has recently been a popular research topic in today's online social networks (OSNs).

The notion that “technology moves quickly” is a well-worn aphorism, and with good reason: technology does move quickly. But at this moment, JavaScript in particular is moving very quickly indeed—much like that “torrent of chatter moving at the speed of light” that Matthew Flaming refers to in The Kingdom of Ohio. The language is in the midst of what many have called a renaissance, brought about by the rapidly increasing sophistication of browser-based applications and the rising popularity of JavaScript on the server, thanks to Node.js.

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Enabling Authorized Encrypted Search for Multi-Authority Medical Databases

E-medical records are sensitive and should be stored in a medical database in encrypted form. However, simply encrypting these records will eliminate data utility and interoperability of the existing medical database system because encrypted records are no longer searchable. Moreover, multiple authorities could be involved in controlling and sharing the private medical records of clients. However, authorizing different clients to search and access records originating from multiple authorities in a secure and scalable manner is a nontrivial matter. To address the above issues, we propose an authorized searchable encryption scheme under a multi-authority setting. Specifically, our proposed scheme leverages the RSA function to enable each authority to limit the search capability of different clients based on clients' privileges. To improve scalability, we utilize multi-authority attribute-based encryption to allow the authorization process to be performed only once even over policies from multiple authorities. We conduct rigorous security and cost analysis, and perform experimental evaluations to demonstrate that the proposed scheme introduces moderate overhead to existing searchable encryption schemes.

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AccountTrade: Accountability Against Dishonest Big Data Buyers and Sellers

In this paper, a set of accountable protocols denoted as AccountTrade is proposed for big data trading among dishonest consumers. For achieving secure the big data trading environment, AccountTrade achieves book-keeping ability and accountability against dishonest consumers throughout the trading (i.e., buying and selling) of datasets. We investigate the consumers' responsibilities in the dataset trading, then we design AccountTrade to achieve accountability against dishonest consumers that are likely to deviate from the responsibilities. Specifically, a uniqueness index is defined and proposed, which is a new rigorous measurement of the data uniqueness for this purpose. Furthermore, several accountable trading protocols are presented to enable data brokers to blame the misbehaving entities when misbehavior is detected. The accountability of AccountTrade is formally defined, proved, and evaluated by an automatic verification tool as well as extensive simulation with real-world datasets. Our evaluation shows that AccountTrade incurs at most 10KB storage overhead per file, and it is capable of 8-1000 concurrent data upload requests per server.

This paper outlines a software development project written in HTML, CSS, Javascript and jQuery.  Developing code for the Internet requires extensive development time and testing.  Working directly on an existing website can interrupt or slow server response time for clients or other users.  The Planet Stew CodePlayer allows a developer to work in an offline development environment to create code in HTML with CSS and Javascript in separate windows.  When a user wants to test their application development they can click the ‘run’ button and the results of their combined code; HTML, CSS and Javascript code are combined together in the ‘Result’ window.  A user can toggle between all 4 windows of the code player or view all 4 windows at once.  Toggle buttons along the top of the menu bar allow a user to choose which windows they want to work with at any given time.  Each windows represents a difference development file.  There is a window for HTML code, a window for CSS code and a window for Javascript code.  Although this application can be uploaded and run from a website, it is recommended that this is utilized in an offline environment since the ability to use it to edit Javascript could put file security at risk on a live website.  You can however, disable the Javascript and use the other functions without risk.  When the application is working as intended then the code can be copied into separate documents and instantiated on a web server.

In the contemporary world it is inevitable to develop Front End Applications without JavaScript. Many JavaScript programmers simply do code with less concern towards long term maintainability and optimized processing. Though JAVA Script offers sundry methods of coding systems to reach the same end, there exist some practices which are pre-requisite to ensure that consequences will be prolific. As such this paper proposes simple, miscellaneous, flexible, reliable and easy methodologies to make web pages efficient and faster, making the application robust. The exploration of this paper could serve as a benchmarking tool and code refactoring tool for overhauling coding practices as well as tuning web pages. Experimental fallouts of our investigation advocate that response time, flexibility, maintainability and re-usability of the application are enriched.

Your brain on JavaScript. You’re sitting around trying to learn something,
but your brain keeps telling you all that learning isn’t important. Your brain’s saying, “Better leave room for more important things, like which wild animals to avoid and whether naked water skiing is a bad idea.” So how do you trick your brain into thinking that your life really depends on learning JavaScript?

Безплатната книга "Основи на програмирането с JavaScript" е официален учебник за курса "Programming Basics" в Софтуерния университет (СофтУни), който дава старт в писането на код на десетки хиляди млади хора: https://softuni.bg/courses/programming-basics.

Книгата запознава читателите с писането на програмен код на начално ниво (basic coding skills), работа със среда за разработка (IDE), използване на променливи и данни, оператори и изрази, работа с конзолата (четене на входни данни и печатане на резултати), използване на условни конструкции (if, if-else, switch-case), цикли (for, while, do-while) и работа с функции (деклариране и извикване на функции, подаване на параметри и връщане на стойност). Използват се езикът за програмиране JavaScript и средата за разработка Visual Studio Code. Обхванатият учебен материал дава базова подготовка за по-задълбочено изучаване на програмирането и подготвя читателите за приемния изпит в СофтУни.

Книгата разчита на подходите "обяснения чрез примери" и "учене чрез правене", за да изгражда практически умения по програмиране, необходими за старт в професията "софтуерен инженер". Учебното съдържание се предава на малки порции с надграждане във всяка следваща глава и със солидно количество практически упражнения с автоматизирана система за проверка на сорс кода на решенията в реално време (online judge system). Упражненията се предоставят в поредица с нарастваща сложност: от съвсем тривиални, през малко по-трудни до задачи с висока трудност, които изискват повече мисъл и търсене на информация в Интернет. Повечето задачи идват с детайлно разписани стъпки за решаването им, комбинирани с примерен код или фрагменти от код.

Книгата е написана от екип от доброволци, софтуерни инженери-практици, под ръководството на д-р Светлин Наков (https://nakov.com), които отделиха от своето време, за да ви подарят систематизирано знание с много примери и задачи, организирано във формата на постъпково ръководство за стартиращи в програмирането. Разпространява се безплатно в Интернет, под отворен лиценз.

Изтеглете безплатната JavaScript книга от нейния уеб сайт: https://js-book.softuni.bg.

The main goal for this application assignment was the development of a multi-player game where a central Java server application functions as a referee and a score keeper.  This application serves as a prototype for a multi-player combat game that is in development.  In this Tic Tac Toe game it is necessary for the creation of two graphics file, an X and an O in .gif form which will have the dimensions of 25 x 25 pixels and function as the game board markers.  In this classic version of Tic Tac Tow the Java server application is launched first and continually listens for a network connection from a Tic Tac Toe client.  The first client application is launched and automatically connects to the referee/server application and the first player receives a message that they are connected but waiting for another player to login.  Once a second version of the client software is launched then the game play begins and the first player is given the option of selecting the first square for game play.  The game progresses until a player wins or a tie game is completed.  The referee/server watches all player game moves to ensure a player does not select a square that has already been selected by the other player.  The future assignment requires a multiplayer client/server warrior game where an unlimited number of players may connect to the server.

International journal of Programming Languages and applications is dedicated to the distribution of research results in the areas of Programming Languages and applications.

Authors are solicited to contribute to the journal by submitting articles that illustrate research results, projects, surveying works and industrial experiences that describe significant advances in the areas of Programming Languages.

It is true that there is a very good demand for programmers today but it is also true that there is no such thing as the best programming languages.

Each and every language has its own set of rules, applications, uses and tools where it should be used by. The right programming language for you would be picked by knowing what you are trying to build and learn the most suitable language for that application.

In order to understand the right way to pick, you will have to know the main umbrellas where the different languages are scattered across.

But if you are looking for the Best Programming Language to learn in 2020 or in the near future or if you’re thinking to start a programming language. Here are some of the language that is gonna be of huge popularity in the near future or in 2020 are as follows

A pixelsoft company is an IT projects company located in al-Qatif Saudi Arabia. Recently they have been facing technical problem, and here is the problem as described by the company: “At Pixelsoft, we have a problem in managing our clients' projects in terms of time, cost, resources, project activities, and project status. Many projects either pass deadline or didn't meet the client’s requirements or got over budget. Currently, each project is being handled inefficiently by the employees where work time gets lost and project progress slowly which by the time cause work overload and delay. Many projects introduced each month while few projects get completed. The current manual process needs to be enhanced and automated to provide better project and work management.”

A courier service is an organization which offers special deliveries of packages, money, documents or information. Courier servicers usually boast faster delivery times than any alternative method of transporting documents, and many services in the modern world rely on it. The idea of couriers and a courier service has been around almost as long as civilization, with rulers in antiquity using couriers as a means to make new laws and edicts known throughout their lands. In the modern age of international business, the courier service has become a keystone of enterprise, even as emerging technologies such as the fax machine and Internet have rendered them less useful in some areas.
The largest courier service in the world is the United Parcel Service (UPS), which delivers more than 12 million packages globally each day. UPS had its roots as a courier service in the beginning of the 20th Century, when it was known as the American Messenger Company. UPS survived the depression and the World Wars, and went on to thrive in the global age. Throughout the years it acquired other courier services, including the Motorcycle Messengers and a number of smaller European companies. Federal Express (FedEx) and Dalsey Hillblom Lynn, now Deutsche post AG (DHL) are other well-known global examples of the courier service, both with their roots in the early 1970s. though not nearly as large as Ups, each company controls sizable portions of the market. FedEx is particularly well-respected for its overnight courier service, the first of its kind. DHL smaller courier services abound, particularly in cities. This type of courier service finds its niche in smaller packages and documents which need to be transported from one location in a city to another as quickly as possible. Couriers in these companies often ride bicycles or motorcycles in order to achieve the shortest turnaround times from pickup to delivery. Indeed, the bicycle messenger, whizzing through crowded traffic at unbelievable speeds with a satchel over one shoulder, has become a symbol of the youthful daredevilry of city life. 
Though technology has replaced many traditional uses of the courier service, there still exists a constant need to transport physical goods and documents over both short and long distances as quickly as possible.

1.2 Statement of the Problems
Keeping record of parcels in a courier service company and their delivery information is carried out manually. This litters the office with much paper documents. Most often records are misplaced and when a client comes to collect his parcel, he/she spend some hours waiting for confirmation of the parcel. Hence delay is bound to occur while delivering parcel to customers. Also, customers must visit the post office before they can purchase stamps or any other item.

Your brain on HTML & CSS. Here you are trying to learn something, while
here your brain is doing you a favor by making sure the learning doesn’t stick. Your brain’s thinking, “Better leave room for more important things, like which wild animals to avoid and whether naked snowboarding is a bad idea.” So how do you trick your brain into thinking that your life depends on knowing HTML & CSS?

The notion that “technology moves quickly” is a well-worn aphorism, and with good reason: technology does move quickly. But at this moment, JavaScript in particular is moving very quickly indeed—much like that “torrent of chatter moving at the speed of light” that Matthew Flaming refers to in The Kingdom of Ohio. The language is in the midst of what many have called a renaissance, brought about by the rapidly increasing sophistication of browser-based applications and the rising popularity of JavaScript on the server, thanks to Node.js.

Top 10 Best Professional JavaScript Frameworks Bundle for Frontend Framework to learn in 2020. Become a JavaScript Professional: Complete JS Framework Bundle. Master complete JavaScript frameworks like Angular JS, KnockoutJS, Vue JS, EmberJS and more with this Professional bundle. Get enrolled now to learn JavaScript. ENROLL NOW and Become Professional JavaScript Framework Developer

This application was for CSC615, Advanced Programming.  We had to develop an application that allowed the totaling of votes from an election and determined the winner if any candidate received over 50% of the vote.  In cases where no candidate achieved more than 50% of the vote the application had to indicate which two candidates with the highest number of votes would be participating in a run-off election.  The application I developed here was dynamic and you can edit the voting results on the fly to both total the votes and indicate the winner.