This document provides information about creating and running object-oriented programs in C# using Visual Studio. It discusses the .NET framework and different types of applications that can be created. It then provides step-by-step instructions on creating a simple Windows forms application with a button and message box, and a basic web application with a "Hello World" header. It also discusses opening and editing pages, building and running projects, and customizing project properties.
What programs can you create in VB ..!?
Windows controls
Reports design
Data sources
Business programs such as inventory management system
Educational programs
PHP is an interpreted programming language which was initially developed to enable the
creation of dynamic web pages. It is mainly used in the development of web applications
and is executed on the server, although it has now evolved into a general purpose scriptinglanguage
and is even being used to develop desktop applications.
What programs can you create in VB ..!?
Windows controls
Reports design
Data sources
Business programs such as inventory management system
Educational programs
PHP is an interpreted programming language which was initially developed to enable the
creation of dynamic web pages. It is mainly used in the development of web applications
and is executed on the server, although it has now evolved into a general purpose scriptinglanguage
and is even being used to develop desktop applications.
There is great research in the field of data security these days. Storing information digitally in the cloud and transferring it over the internet proposes risks of disclosure and unauthorized access, thus users, organizations and businesses are adapting new technology and methods to protect their data from breaches. In this paper, we introduce a method to provide higher security for data transferred over the internet, or information based in the cloud. The introduced method for the most part depends on the Advanced Encryption Standard (AES) algorithm. Which is currently the standard for secret key encryption. A standardized version of the algorithm was used by The Federal Information Processing Standard 197 called Rijndael for the Advanced Encryption Standard. The AES algorithm processes data through a combination of Exclusive-OR operations (XOR), octet substitution with an S-box, row and column rotations, and a MixColumn operations. The fact that the algorithm could be easily implemented and run on a regular computer in a reasonable amount of time made it highly favorable and successful.
In this paper, the proposed method provides a new dimension of security to the AES algorithm by securing the key itself such that even when the key is disclosed, the text cannot be deciphered. This is done by enciphering the key using Output Feedback Block Mode Operation. This introduces a new level of security to the key in a way in which deciphering the data requires prior knowledge of the key and the algorithm used to encipher the key for the purpose of deciphering the transferred text.
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Abstract
There is great research going on in the field of data security nowadays. Protecting information from disclosure and breach is of high importance to users personally and to organizations and businesses around the world, as most of information currently are sensitive electronic information transferred over the internet and stored in cloud based system. In this paper, we propose a method to increase the security of messages transferred on the internet, or information stored in the cloud. Our proposed method mainly relies on the Triple Data Encryption Standard (TDES) algorithm. TDES is intact the Data Encryption Standard repeated three times in succession to encrypt data. TDES is considered highly secure as there is no applicable method to break the code itself without knowing the key. We propose to encrypt the key using Cipher Feedback Block algorithm, before using TDES to encrypt data. Such that even when the key is disclosed, the key itself cannot decipher the ciphered text without enciphering the key with CFB. This introduces a new dimension of security to the TDES algorithm.
The method introduced in this paper increases the security of the TDES algorithm using CFB algorithm by increasing the key security, such that it is actually not possible to decipher the text without prior knowledge and agreement of key and algorithms used.
Keywords: Data Encryption Standard, Triple Data Encryption Algorithm, Cipher Feedback Block.
Abstract
Digital images can be changed easily nowadays through the use of sophisticated software to edit images such as (Adobe Photoshop®). You can look at some manipulated pictures along the lines of the original images without any suspicion that they are also modified. Accordingly, the use of such software to edit the image makes ratification a difficult task and the use of this image in the courts for proving may become impossible.In this paper, a new method has been proposed for water fragile signs depending on the method of Pixel-wise. The proposed method is based on the included secret watermark and check bits in the green layer to the image of the colorful cover with the size of 512x512. The process of including watermark deals with the green class as a chess board with 512 x 512 sizes to avoid the inclusion of sequential bits in the spatial areas of the image of the cover. The process of extracting and discriminating the manipulation of watermark is used to determine whether the manipulation of the image containing watermark was done by an opponent or not. Therefore, the use of the extracted watermark and matrix manipulation to check the image containing watermark sent. Depending on the experimental results, the proposed method provides high quality, low distortion in the images contained watermark PSNR depending on their values. Also, the ability to recognize manipulation in the picture containing watermark in cases such as adding objects to the image containing the watermark, and the application of JPEG compression on image containing watermark, and removing objects from the image containing watermark, repeating the object image containing watermark, and adding a text on image including watermark.
Keywords: Check-bits, Fragile watermarking, PSNR, Secret watermark, Watermarked-image.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
C# p1
1. Renas R. Rekany Object-Oriented-Programming L1A
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Object-Oriented-Programming
Stage: Second Computer
Science
Department
Computer &
I.T Faculty
Units
8
Hours
Theoretical 2,
Practical 2
Tutorial 2
OOP
Lec: Renas R. Rekany
2015/2016
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History of programming languages
1- Microsoft .Net Framework
.NET Framework (pronounced dot net) is a software framework developed by Microsoft that
runs primarily on Microsoft Windows. It includes a large class library known as Framework
Class Library (FCL) and provides language interoperability(each language can use code written
in other languages) across several programming languages. Programs written for .NET
Framework execute in a software environment (as contrasted to hardware environment), known
as Common Language Runtime (CLR), an application virtual machine that provides services
such as security, memory management, and exception handling. FCL and CLR together
constitute .NET Framework.
FCL provides user interface, data access, database connectivity, cryptography, web
application development, numeric algorithms, and network communications.
Programmers produce software by combining their own source code with .NET
Framework and other libraries. .NET Framework is intended to be used by most new
applications created for the Windows platform. Microsoft also produces an integrated
development environment largely for .NET software called Visual Studio.
2-Different DOTNET Types of Applications
There are three main types of application that can be written in C#:
1. Winforms : Windows applications have the familiar graphical user interface
of Windows with controls such as buttons and list boxes for input.
2. Console: Console applications use standard command-line input and output
for input and output instead of a form.
[[[[
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3. Web Sites.
3- Starting Visual Studio (2008/2015)
-Double click on Microsoft Visual Studio (2008/2015) icon on desktop.
OR
-Open the Start menu, select All Programs, and then select Microsoft Visual Studio 2008/2015.
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4- Create First Winforms application
Step 1: Start Visual Studio
Open the Microsoft Visual Studio 2008/2015.
Step 2: Create a new project
Go to File -> New Project, And then New Project Dialog Appears.
In the New Project Window, Select Visual C# as Project type and Windows Forms
Applications as the template. Give Name and Location to your project and finally
click OK button to create our first C# project.
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Step 3: Design the user interface.
When the project is created, you will see the designer view of your interface as
follows.
Form Designer View
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In this designer view of the form (Form1.cs [Design]), you can design the user
interface of the single form. To do that, we use the 'Toolbox' which contains the
items that you can add to your form. Toolbox is placed on the left side of your
visual studio. If it is not visible go to View -> Toolbox to show the Toolbox.
Toolbox
It contains Labels, Buttons, Check Boxes, Combo Boxes and etc. This can be used
to design your interface. To add elements from the Toolbox to your form double
click the item or drag the item to your form.
Now add a Button Control to your form by simple dragging a Button control into
the form designer view. Finally it looks like below.
Now our form contains two elements. Those are form and the button control.
These elements have properties such as name, text, background color, fore color,
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etc.... To see properties for a control, select the control and all the properties are
displayed in the Properties Window which appears on the right side of your visual
studio. If it is not visible, Go to View -> Properties Window.
Select the button and view properties as follows.
Now set the text to 'Show' for the button.
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Step 4: Writing the code
Double click on buttun1 to write the code
private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show("Hello World!");
}
Step 5: Compile the code
To compile the code Go to Build -> Build HelloWorld
Step 6: Running the application
To run/execute the program press F5.
Running Application.
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6- Create First Web application
Building Your First Web Application Project
Creating a New Project
Select File->New Project within the Visual Studio 2005 IDE. This will bring up the New Project
dialog. Click on the “Visual C#” node in the tree-view on the left hand side of the dialog box and
choose the "ASP.NET Web Application" icon:
Visual Studio will then create and open a new web project within the solution explorer. By
default it will have a single page (Default.aspx), an AssemblyInfo.cs file, as well as a web.config
file. All project file-meta-data is stored within a MSBuild based project file.
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Opening and Editing the Page
Double click on the Default.aspx page in the solution explorer to open and edit the page. You
can do this using either the HTML source editor or the design-view. Add a "Hello world" header
to the page, along with a calendar server control and a label control (we'll use these in a later
tutorial):
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Build and Run the Project
Hit F5 to build and run the project in debug mode. By default, ASP.NET Web Application
projects are configured to use the built-in VS web-server when run. The default project
templates will run on a random port as a root site (for example: http://localhost:12345/):
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You can end the debug session by closing the browser window, or by choosing the Debug->Stop
Debugging (Shift-F5) menu item.
Customizing Project Properties
ASP.NET Web Application Projects share the same configuration settings and behaviors as
standard VS 2005 class library projects. You access these configuration settings by right-clicking
on the project node within the Solution Explorer in VS 2005 and selecting the "Properties"
context-menu item. This will then bring up the project properties configuration editor. You can
use this to change the name of the generated assembly, the build compilation settings of the
project, its references, its resource string values, code-signing settings, etc:
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ASP.NET Web Application Projects also add a new tab called "Web" to the project properties
list. Developers use this tab to configure how a web project is run and debugged. By default,
ASP.NET Web Application Projects are configured to launch and run using the built-in VS Web
Server (aka Cassini) on a random HTTP port on the machine.
This port number can be changed if this port is already in use, or if you want to specifically test
and run using a different number:
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Alternatively, Visual Studio can connect and debug IIS when running the web application. To
use IIS instead, select the "Use IIS Web Server" option and enter the url of the application to
launch, connect-to, and use when F5 or Control-F5 is selected:
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Then configure the url to this application in the above property page for the web project. When
you hit F5 in the project, Visual Studio will then launch a browser to that web application and
automatically attach a debugger to the web-server process to enable you to debug it.
Note that ASP.NET Web Application Projects can also create the IIS vroot and configure the
application for you. To do this click the "Create Virtual Directory" button.