[2008] Encrypt A Text File In Vb 2008?
Feb 3, 2009how I can encrypt a text file in vb 2008. Then decrypt it and display it in a textbox?
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VS 2008 - How To Encrypt An Image File
May 15, 2009I want to load an image file in a comfortable format so that I can then break it into two halves. Can somebody please guide me how to do it? Which format would it be? String, binary etc? tell me the functions/code to use to load the image file and then save the string etc.
View 1 RepliesVS 2008 Encrypt And Decrypt File?
Jun 16, 2009The same thing that happens when you compile a script it turns in a non-readable mode but when it's opened in the right editor it's back for editing like normal.But just so it encrypts and decrypts the textfiles just like I said before.
View 3 RepliesVS 2008 Encrypt Only First Page Of A .doc File?
May 15, 2009How to identify and edit only the first page of a *.doc file, i.e. how do I identify one single page in a word document?
View 3 RepliesVS 2008 AVRdude Encrypt/decryption HEX File On The Fly In VB?
Oct 8, 2010i am looking to decrypt my HEX code file for an ATTiny chip and programming it using the AVRDude command line interface. Problem being, i do not want the user to be able to see what the HEX file is at any given time. VB.net Cryptography crypt the HEX file before i put it onto the server and then decrypt it after the program downloads it from the server and runs it through the program without seeing the decrypted HEX file?
Obviously the HEX file can not stay encrypted while being programmed to the ATTiny chip so how can i go about it so that i can create the original HEX file to be programmed within the program without having to worry about it writing a temporary file to the hard drive and then deleting it afterwards? (Because they could close the program after it does that temp file and they would be able to navigate and open it and see the code)
How To Encrypt Data File In Visual Studio 2008
Jan 21, 2010Is there any built in Encryption function in Visual basic 2008 that I can use? I want to encrypt my file because it is written in XML format any as far as everyone know... XML can read by anyone that has notepad or any related software.To aim is not enough.
View 2 Replies[2008] Encrypt Command Prompt Batch File
Feb 12, 2009is there possible to encrypt a command batch (.bat) file so that user can't read the source code?
Or is it possible to embed it in VS 2008 so that user are invisible to the cmd file?
Encrypt Text File - Save Data From Datagridview To Text File
Jul 22, 2009I save data from datagridview to text file. I also load the same data from text file into datagridview for edit and update the same thing to text file. Let say this text file i called as Drill.txt. I have another text file called header.txt which need to match its value with the value of Drill.txt file then overwrite value from Drill.txt to header.txt. Now i want to make my Drill.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program
[Code]...
Encrypt / Decrypt A Non-text File
Nov 12, 2009I am interested in knowing if non-text files like .xls/.xlsx or .doc files can be encrypted... From the Devlopers Guide on MSDN, I found code snippets that allow encryption / decryption of .txt files. This works absolutely fine. However, I would like to know if similar procedure can be used to encrypt/decrypt file other than .txt file.
View 1 RepliesEncrypt / Decrypt Text In File
Jun 21, 2010I have created a encryptor/decryptor that allows you to encrypt/decrypt text in a textbox, or a file. The basis of the system is to allow a user to thoroughly protect data within their system. Is there anyone that would be willing to test the program?
View 4 RepliesEncrypt And Decrypt Text File?
Jul 23, 2009I save data from datagridview to text file . I also load the same data from text file into datagridview for edit and update the same thing to text file. Now i want to make my Drill layer header.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program How can we do like this?
My Drill Layer Header.txt file is like this
T240C3.175F012S27H2000
T239C0.95F034S55H1000
T236C1.2F029S48H2000
[code]....
This code can encryp the text file. But accrding to this code EncryptFile("c:\Drill Layer Header.txt", _ "c:\Drill Layer Header original1.txt", _ sSecretKey) It ask for input and output file. So it take data from Drill Layer Header then encrypt the save in drill layer header original.txt. I want it to take data from drill layer header and encrypt and save in same file.
Encrypt And Decrypt A Serialized Text File?
Aug 14, 2010For example I got this part of a method which serializes a textfile with a password and then encrypts it using the rijndael encryption method[code]...
View 8 RepliesEncrypt And Decrypt Text File Into Datagridview
Jul 23, 2009I save data from datagridview to text file . I also load the same data from text file into datagridview for edit and update the same thing to text file. Let say this text file i called as Drill.txt. I have another text file called header.txt which need to match its value with the value of Drill.txt file then overwrite value from Drill.txt to header.txt. Now i want to make my Drill.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program How can we do like this?
[Code]...
Encrypt The Text First And Then Save The File To Database
Oct 20, 2010This is what i need my program to do...I have a form with 1 textbox and 2 buttons (save and load) If i type information into the textbox and then click save, i need it to encrypt the text first and then save the file to database If i click the load button i need it to decrypt the file and display the decrypted data into the textbox i just need a way to save my text files so the information inside them cant be changed without using my program but yet again i find myself at a loss as to how i do this.
View 1 RepliesVS 2008 Save File And Encrypt Or Have Unique Save Name?
Mar 19, 2009My question is simple (the answer may not be...), What I am looking for is a way to save a file as an encrypted file (so know one can open it except in visual basic or a way to save it with a unique ending that only visual basic will recognize. I will also need to know of a way to open or load the file to.
This is going to be used in a game I am working on (and yes...I know visual basic isn't really meant for games, but it is coming together pretty well). I was originally going to have it save as a text file, but then everyone could open, read it and even change there stats. That is what this file will contain, the stats for their character, and when they load it, it will place the values into the correct spot.
I am a partial beginner or intermediate coder, I can understand code, I just don't know all there is, like saving and loading, and this is probably a little harder.
Encrypt Login Password And Store It Inside A Text File
Apr 2, 2010I would like to encrypt login password and store it inside a text file. But I have no idea how to encrypt it. Can someone show me an example of code so that i can get an idea of how to go about it ?
View 4 RepliesIDE :: Encrypt Some Data And Save It To A Text File With The 1st Windows 2005 Form
Oct 10, 2010I have two windows vb.net form. I got a text file. I am trying to encrypt some data and save it to a text file with the 1st windows vb.net 2005 form. Now with the second one am trying to decrypt the data and retrieve it here.
View 3 RepliesVS 2008 - Read Text File - When Click Button Add Text From Combobox Is Added To Text File
Jan 4, 2010I have one combobox, two buttons (Add and View) and listbox. When I click button Add text from combobox is added to text file. This is code for Add button:
[Code]...
[2008] Use The Treeview To Display The Text Of A Rtf (rich Text File) File When An Specific Node If Clicked?
Aug 30, 2009Hi, i'm trying to use the treeview to display the text of a rtf (rich text file) file when an specific node if clicked.HomeOMGWOOTFor example, if i pick OMG, i want the text of lol.rtf to be displayed on a richtextbox. But somehow i just can't manage to get it... I know to import the text of a .txt file to a textbox, but using the treeview makes it more complicated.This is the code im using right now:
Private Sub TreeView1_NodeMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeNodeMouseClickEventArgs) Handles TreeView1.NodeMouseClick
Select Case e.Node.Index
Case 0
[code]....
Another thing is, that i can't import the *.rtf text into a richtextbox and i don't know why.
VS 2008 - How To Encrypt Large Files
Oct 16, 2009So I can encrypt small files using Des Encryption, but whenever I try encrypting large files, The program's memory usage skyrockets! Would anybody be able to get me some code that will let me encrypt large files (It doesn't have to be Des, but I need to be able to support any length password).
View 1 RepliesVS 2008 - Encrypt String Using ECDSA Algorithm?
May 28, 2009Any example code to encrypt a string using the new ECDSA algorithm?
View 1 RepliesVS 2008 Encrypt Program So People Can't Hack It?
Aug 9, 2009I am just wondering how to encrypt my program so people can't hack it. I have a program that has a spot where you can type in problems with the program and it will email it to me. But, when I release my program people hack my email and password that is used to send the problems.
View 7 Replies[2008] Using The RSACryptoServiceProvider's Encrypt Method Properly
Dec 30, 2008the CryptoStoreTest example posted here at VBForums, I've managed to store an RSA key in the PC's CryptoStore, however I have yet to manage to use it to encrypt data. Does anyone have any practical experience with the RSACryptoServiceProvider they'd be willing to share? I usually get an exception with an unimaginative message: "Bad length.", or I get non-matching results when using the same key on the same file. The MSDN documentation is equally mysterious How do I get the maximum length I may use for the Encrypt method? MSDN mentions something about a hash's length but so far I have found no hash in the RSA algorithm...
View 8 RepliesVB 2008 App - Encrypt Database Connection String In App.Config
Sep 21, 2011I know this topic has been addressed a million times but please help me out. I have read so many articles on HOW TO encrypt and decrypt the app.config file but I need to know WHEN and WHERE I should encrypt it.
The problem arose because we found an AppName.exe.config file on a users computer and the database username and password was clearly visible. I understand that the .config file gets created during the VB app install process and is used
by the application. I then learned about the aspnet_regiis.exe tool and ran it on the app.config file inside my VB project. I am guessing that was the wrong thing to do.
When I now install the app on user desktops, it gives an error stating failed to decrypt the connection string. Also, when one of my other developers attempts to open the project in his copy of visual studio on his computer, he receives an error when trying to access the setting portion of the project properties. We store all of our projects on a file server and any developer can access the projects via a mapped drive on their computer.
So how am I supposed to encrypt the .config file. If I can't encrypt the App.config file in the development environment, then I'm guessing I have to perform the encryption on the users PC during the install process? How do I do that? Or is that what I am supposed to do?
Just for reference, here is the aspnet_regiis command I ran.
aspnet_regiis.exe -pef "connectionStrings" S:ProjectsDevelopmentVB.netPTPUSourceCodePTPU -prov "DataProtectionConfigurationProvider"
One last thing, maybe it's my misunderstanding of the issue but if this problem has existed since .Net 2.0, why has an option not been built into the development studio to encrypt connection strings?. This would seem to be a very common issue, even their own dataset wizard creates connection strings that are clearly readable.
Design A Program That Can Encrypt And Decrypt Messages Stored In Simple Text Files Using A Private Key Stored In A Separate File?
Jun 13, 2011Need to design a program that can encrypt and decrypt messages stored in simple text files using a private key stored in a separate file. Software should also be able to allow the users to enter simple messages that either displays the encrypted or decrypted message. The encryption method should use a simple substitution method. It should be set out in the following format:
Example (the "@" is the separator):
@
The character The Code End of line
A @ 4gh EOL
B @ 84!9 EOL
Has to use the 256 ASCII character codes. The separator will be used to separate the character and its corresponding code.Here are the pseudocodes I have come up with:
� Read any private key file
separator = readline(file);
while not EOF(file) do
tempStr = readline(file);
[code].....
VB 2008: Text Event - Read A Text File Till The End And Stop It?
Aug 5, 2010i am working on read line by line . At each line that my app read , i added a event . How do i read a text file till the end and Stop it? there is how it work :
[Code]...
VS 2008 - Saving To Text File Using Multiple Text Boxes And Labels
May 27, 2009how to permanently save to text files then re-open all of the information again using SFD and OFD. Now my teacher has come back at me and said that i need to be able to save the information from multiple text boxes and have the text in certain labels to also be saved into the one text file (the labels need to be done because it is a database and these labels are like the fields and the right text box needs to match the right label)
View 39 RepliesVS 2008 - Simple Text -> Xml Program - Save The Contents Of The Bottom Text Window To An Xml File
Dec 23, 2009I have this Quiz software that lets you create online multiple choice quizzes which are great for studying (I am in grad school and I'm trying to use everything I can to learn). So the Quiz software is great but it only lets you input questions by hand, one by one. I took a look at the .xml file that the quiz program spits out and came up with the idea to try and make a converter so that I can import many questions at once. I was hoping to try and solve this limitation by doing the following:
Take a .doc that say a tutor gives us with a bunch of practice questions, and then take that into Crimson Editor, and then format it so the question is on line 1, the multiple choice answers are on lines 3,4,5, and 6, (for the next question, the question would be on line 11, and the answers on lines 13, 14, 15, and 16, and so on) and then take that saved .txt file into my program, hit the generate button, and it will spit out the .xml file, and then import that into the quiz software to generate the online quiz.
Here is an attached screenshot of my program layout so far:
I figured out how to open a text file by watching simple youtube tutorials, but I don't know how to have it generate the stuff and have it show up in the bottom text box. I know how to do the coding to convert the txt to proper xml code but I don't know how to be able to save the contents of the bottom text window to an xml file.
VB 2008 - Read From Text File And Display In Text?
May 26, 2008how to do this for vb6 however i am using vb 2008 and the code for vb6 does not seem to work.
I have designed a form with a text box on it, and a command button underneath. The idea is to run this as a sort of stiky notes section.
I want the text box to read rich text into the textbox (C:\\stickynotes.rtf")
Then i have a command button underneath which i want to save the content of the rich text box to the rtf file (C:\\stickynotes.rtf). This is so that the user can edit and ammend information.
here is some code i have so far
Dim fileReader As System.IO.StreamReader
fileReader = My.Computer.FileSystem.OpenTextFileReader("C:\\stickynotes.rtf")
VS 2008 Read Text File And Put Text In Textbox?
Jun 24, 2010im trying to have the user press a button and a window pops up to select a file. then it reads the file and puts it in a text box. how could i do this?
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