Data Encryption Program In VB 2008 Express?
Mar 6, 2009
I am currently working on a simple data encryption program in VB 2008 express. Basically, I want the user to be able to select any file type and the program will read the data and store it in a text box. The user would then input a key, push the encrypt button and the program would XOR each byte of data with each character from the key and store the data in the third text box. I have written a program that has similar functionality only, it will not read from files, it simply reads data from a text box, so I have a encryption algorithm that works.Here is my
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Sep 25, 2011
What would be the best way of storing data securely away from users. What I have is a stack of files that get downloaded by the program, at the moment they COME encrypted, and stored in a temp location. Now where would be the be place to store them, and how would I store them? The program reads normal unencrypted files but in order for me to open them at the moment I nee to decrypt them in the temp folder and open them from there.This is bad because anyone could find the temp folder and simply copy out all the unencrypted files.Opening the files and then decrypting the bytearray is out of the question because the program only takes a filename as a option.
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Dec 14, 2009
I have designed an application for a company which has 5 client computers that read and write data to an sql2008 instance on a server.I would like to know the way to detect a change in a table whithout having to refill the table adapter.Let's say that all the client applications have a datagridview on the main form which binds to a table on the database lets say Members table (members binding source)Whenever a client makes a change to that table (lets say that it updates the Last name of a member) i would like the rest of the clients to detect that update and as a result ,update the specific row or cell in the datagridview.Is there some kind of event that is raised?
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Feb 24, 2010
The program I am trying to modify was initially written using VB 2005 Express. I have subsequently downloaded the 2008 version. The program creates a monthly spreadsheet from a template. The old code that will no longer (highlighted and underlined) compile is as follows:
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May 18, 2010
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
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Aug 9, 2009
Where in Visual Basic 2008 Express Edition Software program do you specify a specific installation directory for a program?
c:Program Filesfinished program
I want to publish my program to try it out on another system and I want to ensure its installed in the directory structure I want.
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May 26, 2009
I have a program in vb express 2008 which I would like to publish in a little more professional manner than provided in the standard vb express package. I would at least like to include a "Terms of Use" document the user must agree to before installing the program. I have dovnloaded and installed web developer, c# and vs 2008. Do any of these include a professional installer? If not are there any free installer packages available? I am 72 and live on a limited budget so I cannot aford an expensive package for one program.
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Dec 22, 2009
I have make an program in VB express 2008 ( Three years work )This program is stand alone , you can start it everywhere My program works on XP , VISTA and Window 7 I have make an setup program to install it in MyDocuments But the path in XP is not the same as VISTA or Windows 7 ( I know how to do this )
What I want to do is to make an short desktop of my program with the same icon as my program on the desktop
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May 12, 2010
My idea is to have an input and an output text box. When the user presses a button the program will encode what is in the input text box and output it into the output text box.I also want to encrypt it with a secret key where the user enters a letter or set of letters into a separate text box which will effect the output. This process can be reversed to decrypt
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Mar 5, 2009
when publishing a program is it possible to get it to include or copy over a mdb file and can the setup be made into 1 setup file instead of the "Application Files Folder" and "Program name.application"
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May 28, 2012
Run VB 2008 Express Edition program on PDA / Pocket PC
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May 15, 2010
I'm trying to do an encryption program that encrypts with AES256. I have searched for source codes, but I could not find proper result. Most of programs use Rijndael as algorithm, but I don't want using this class. I searched MSDN for AES classes, and I found AESCryptoServiceProvider, but I don't know how to use it.
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Oct 31, 2011
Could any one list the encryption types in Visual Basic.
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Jul 20, 2010
Public Function Crypt(ByVal Str As String, ByVal Password As String) As String
Dim SK As Long, K As Long
Rnd(-1)
Randomize(Len(Password))
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May 3, 2010
I've been trying to figure out a simple keypress handling event.I have the code working fine after hunting for a couple of days on the net but have a problem getting rid of the obnoxious bong that comes along with hitting the ENTER key.I've attempted some solutions on the web about changing the KeyAscii to 0 but under that method I cannot even get the program to recognize the key is even being pressed.The code I have so far is as follows and I'm just trying to get rid of the audible bong.
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Jul 18, 2010
I was board making web browsers and OS so, I tried making an Encryption/Decryption program. I surfed the net and found a source code. But, after doing everything, I debug it, click the encrypt btn and nothing happens. I though the encrypting is a slow process. The thing is the process should be immediate cause I downloaded this web browser called 'Areo Pack'. It comes with a few other program and one of them in an Encryption/Decryption program. I tried it and it was done in a few seconds. I tried opening the encrypted file with notepad and I see a text file with Chinese, Japaneses, Korean, etc.
Imports System.Security.Cryptography
Imports System.Text
Public Class Form1
Private Shared DES As New TripleDESCryptoServiceProvider
Private Shared MD5 As New MD5CryptoServiceProvider
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Aug 13, 2009
This is for a simple encryption / decryption program. However when I run this the program does nothing and doesnt respond. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim decryptedtext As String
Dim encryptedtext As String
Dim k As Int16
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Feb 14, 2009
I need some help with writing a program that will encrypt text using AES encryption. I'm not quite sure how to go about doing this.
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Jan 22, 2010
My project is a server/client application, how do I copy existing panel with labels and pictureboxes to show stats of clients connected? I mean once the server accepts a client, stats of that client is shown on a new panel but has the same contents as the existing panel. Any Idea how to do this? I was thinking to make a set of panels and hide them if there's no client connecting but what if there are too many clients connecting more than the set of panels already made?
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Jun 3, 2011
And here I am with a new problem in my program When I debug it everything works fine (the buttons, progressbars, pinger, spambot, When I compile it and run the Executable file, it works too.When I run the Executable file on another computer (tried on 4 different ones) the program stops working and
I get this error:
{$ exception. "Failed to create the form For more information, see Exception.InnerException error: File or assembly ." Microsoft.VisualBasic.PowerPacks, Version = 9.0.0.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a "or one of its dependencies not found. The system can not find the file specified .."} System.Exception {System.InvalidOperationException}
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Mar 15, 2012
I am trying to get my program to run at windows startup. Not just load the VB project but to run it.
So that the user just turns on the computer and the project is up and running.
I have seen and tried lots of code suggestions (all different) none seem to work!
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Sep 18, 2009
how I can start a program with Visual Basic Express Edition 2008? I mean do you have any code I can use as a base to start another program? If that made sense.
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Jan 22, 2010
I am starting design of a program that needs to run no matter if the user is logged in to the PC or not. So I will be writing it as a VB.Net Service.
As I am not overly familiar with SQL Server Express, is it possible to connect to a local SQL Server Express Instance and access the database from a VB.Net Service while the user is not logged in to the PC?
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May 9, 2011
I've been looking all over the internet trying to figure out how to incorporate Speech Recognition into a program I'm designing in Visual Basic.I've downloaded and installed: Visual Basic 2008 express edition, Visual Basic 2010 express edition, Speech SDK 5.1, and the Windows SDK version 7.1.
I'm not really sure what I'm doing wrong, or if maybe I have to use a different programming language like C# or C++...I don't know. I've looked through sample codes and tried a few, but in both Visual basic 2008 and 2010 they say the terms aren't recognized. like System.speech isn't recognized at all.
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Oct 30, 2009
I built the sample project "How Do I" Data Access and ran into a problem adding, updating or deleting records. The project works like a champ until this step... It will let me delete, change or add records just fine, but when I save and close project and go back to my "show table data" in the database explorer nothing has changed?
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Feb 10, 2011
What I've decided to start working on is pretty much a personal project but something I may use in my UNI course in due time. I'm creating a security program with a set of access codes (yes I am a bit of a star trek fan) - 4 in total to be exact. I want to be able to use an Encrypted key file in form of a simple notepad created text file to update the codes at any due time. All I'm looking to do is write the access codes to the text file (say for a friend to use the program), Encrypt the file through the program and be able to also decrypt to obtain the new access codes on demand also via the same program. Once decrypted the codes can be read and verified if the user has entered each one correctly. I could hard code the access codes into the program but would rather do it the way I've thought of.
Back in the days of the old VB6 there was a simple method but for some reason that doesnt work any more. What I guess I'm looking to do is have 4 text fields where 4 digit access codes are typed into, have the program take them and encrypt each one is then written to the text file. Hoping that will make it a bit clearer what I'm trying to achieve as I think I made it sound like I want to encrypt the text file after the info has been written to it, which is of course one option so wouldn't mind know how to do that too!
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Nov 13, 2011
I am trying and failing to make a text encryption and decryption program. How can I encrypt and decrypt text or text files?
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Aug 14, 2009
How do you create custom chrome for a windows form in vb.net using Visual Basic 2008 express? I want to basically scrap what they give and start fresh.
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Nov 30, 2008
Basically i am creating a Hangman program using VB 2008 Express edition and need some help.I would like some help on when a user is entering a letter for the word how can i make it so for example if the target word is "MAX" and they enter "M" i would like the lblstatus to update as "M--" obviously i would want it to be able to do it with all 3 letters.
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Jan 21, 2010
I am in process of writing a setup program that will reside in a USB stick.After inserting the Stick the VB2008E program starts (dont know how) and guides the technician to do certain tasks. As a part of this She/He needs to run a Setup.exe that resides in the same USB stick.
1- How do I define the drive letter of this USB stick.
2- How do I run the x:Setup.exe program without exiting the VB2008? The install process should begin after click of a button.
3- Would Autorun work on USB drives to run the program automaticaly?
4- How do I compile to make a single EXE file at the end?
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