I am making an program that stores most of my text files in it. So I need a secure password protection to protect my information's. I was told that MD5 will get the job done, so I used an MD5 protection to see if it'll be good. I gave the test program to a guy I know and he manage to get my password within a minute. (I am still a bit new to VB so which encryption to use...)
View 21 Replieshow can i put a password protection on my program
View 15 RepliesI'm making a login screen but i couldnt find a way to make textboxes invicebel but useable so i used labels but now the password label doesnt show password protection is there anyway i can give the label ******* pasword protection?
View 18 Repliesset password for a folder using vb.net source code
View 3 Repliesi'm trying to create a program that enables a user log into the program using a username and password, first he/she must first create an account with some vital information incase the password is forgotten so it can be retrieved
View 2 RepliesI have already a projet and now I wanted to protect this exe as after 60 of days of installation it should ask password to unprtect the exe.
View 1 RepliesI am trying to figure out a way to implement password protection on documents that a program I am working on creates. They should remain with the document regardless of where it is copied to or sent.Here is a rough sequence of events:
1. Application Opens (no document loaded).
2. User opens document with extension registered to application.(could also be # 1 if they clicked on the document directly)
3. Application Security checks document for security and prompts if necessary.
4. If prompted, user enters password.
5. Application checks password.
6. If passed, document opens, otherwise user is notified of failure.
I'm presently creating an application which uses Access2007 as the database. No problem there. But Since most use Excel for data-entry, i've created two tables in access linked to excel source file. Any change in excel will reflect in Access database and subsequently in my Application . Until now my application only reads the database and displays records in DataGridView. These records, i then export to excel along with other formatting for direct printing as a report as I have no idea how to make report. Now i want to add data-entry capability to my app using password-protection user-access. So i can directly add new record to source file. Also need to know if There's any way of eliminating Access from the picture entirely....
View 1 RepliesI will be downloading updates for my database and client from a separate executable that will only be used for updating.In order to prevent someone from just decompiling my app through reflector and obtaining the password to the FTP server, what would be the best way to store the FTP password?
I was thinking I could create a table in my SQL database and store it there since a SQL database is way more secure than my app.
I've never really used the SecureString class before but I've got a requirement in an app to have a user enter a password that will be used later in the application, and I figure SecureString is the most secure way to do this.
I have created a little dialog form where the user will enter their username and password and have set the UseSystemPasswordChar property of the password textbox to True. As I need to keep the password in memory for use later though, I have created a property in my main form that is of type SecureString and when the user enters their password into the dialog window I copy the string from the password box to the SecureString property like so:
vb.net
For i As Integer = 0 To LoginFrm.PasswordBox.TextLength - 1
Me.ConnectionPassword.AppendChar(LoginFrm.PasswordBox.Text(i))
Next
I figured out how to get the original string back when I need to (with only a slight hint from the documentation I might add ), which I do like this:
Dim OriginalString As String = Marshal.PtrToStringBSTR(Marshal.SecureStringToBSTR(Me.ConnectionPassword))
but the problem I have is that I want the user to have the option to edit the password they already entered if they want to. This is a problem because I want to avoid putting the real password back into the password box for security reasons, but then if I just put some random characters in there (just to show that their password has been remembered by the app) and then the user clicks OK on the login diaog form then it will update my ConnectionPassword property and set it to the random characters.
One option would be to set the passwordbox text to something specific each time and then test to see if that is what the text is set to when they click Ok (and if it is then obviously dont update the ConnectionPassword property) but this seems pretty rubbish because its possible (however unlikely) that the user could actually select that word as a password.
Any better suggestions? Perhaps its not worth doing anything at all and just use a normal string as the SecureString is going to have to get converted back to a normal string at some point to be used.
I'm making a database app. I've finish the search, add new, and add function. What I'm trying to do is to expand the functionality of the add new item function.
View 2 RepliesAre there any programs that I can use to add "Serial Protection" to my program?
View 2 RepliesI was looking online for a application that can delete a file more secure then. Kill(C: est.txt")Then i had a thought.Maybe i can make my own.Is it possible to make a secure file deleter in vb.net or should i look into C++
View 5 RepliesWhat would be the best way to input the password when uploading a file to FTP? The file gets uploaded behind the scenes without the user inputting any details (the username + password gets used)
So far I've used the network.upload method but the password is in plain text and obviously readable. I need to upload the file without anyone obtaining the password when doing so, would obtaining the password from a mysql database or some sort of encryption be better?
I am developing a desktop application in VS2008 with C#. How can I send an SMS using a secure gateway?
View 3 RepliesI have making login system using with php. Now I want to hide the link by using strongest MD5 hash, but the one I have got is uncrackable. I want to decrypt them in the runtime, but I couldn't.
Here's the
Public Class Form1
Function MD5Hash(ByVal strToHash As String) As String
Dim md5Obj As New Security.Cryptography.MD5CryptoServiceProvider
Dim bytes() As Byte = System.Text.Encoding.ASCII.GetBytes(strToHash)
bytes = md5Obj.ComputeHash(bytes)
[Code] .....
The GetMD5Hash's method is using for to decrypt the MD5 hash to turns into the actual strings and MD5Hash's method is using for encrypt the strings into md5... However, the connection strings can be sniff the packets sent out. How to decrypt the MD5 hash and how to blocked the connection strings in the packets sent out??
Busy to connect a secure access 2003 database (with a mdw file) to a datagridview but we don't know where we have to place the mdw file in the (advanced) properties
View 3 Repliesi have a program that connects to mysql database to check username/password.I have a line like this in the project:
conn = New MySqlConnection("server=myserver.info;Port=3306; user id=dbusername; password=dbpassword; database=dbname")Anyways, a user managed to get this info from the program
How can i make it so they can NOT grab this info from the program ?
This is the Download file code which is 100% working when i will give directlink of file
And in this case progress bar is not working anymore and program hangs too let me know what is the problem with above code and how i will correct it
Newbie here I need to send a email with and attached file (a *.xls file) The condition is that the e-mail need to be signed and crypted. I already got a digital certificate sign (provided by Verisign). I also read something about X509Certificate2 Class on MSDN, and something about Outlook interop Model. My idea was use the Outlook Interop Model Class (from Outlook 2007) but i have no idea how to do this.
View 1 Repliesi recently made a web browser in visual basic express edition 2008 for my family computer use purposes only. Id like to make sure that using my web browser and entering personal information on it will be safe. How can i make it safe and secure? Additionally i was wondering if id have to develop my own addons or if its compatible with Firefox addons.
View 1 RepliesI am working on a media player, and I would like to setup a local playlist feature. I am using a single ListBox and its "Display-" and "Value-Member" properties. The display is the song's Artist and Name, and the value is the song's file path (i.e 'C:UsersUSERMusicetc.').To write the file path to the .txt file, I believe I can use the following code:[code]
View 18 Replieshow to create Quick info and/or parameter info for own code?
View 6 RepliesI am making a program, obviously, and I require some assistance. I found an explanation on how to read information from a Text file and have modified it for my needs. Here is my (modded) version:
Public Function GetInfo(ByVal playlistname As String) As String
On Error Resume Next
Dim PlaylistInfo As String
[code].....
I am trying to do is fill out a form with certain info, put the info into an array, and write it to a listbox using loops, arrays, and maybe a function if I need one. This is for VB2010 and here is what I have so far... I think there are ways to make it shorter but I cannot figure it out.... maybe just brain dead from all the coffee I have been drinking!
[code]...
under my project I have the following
However when I use this code.
lblABOUT3.Text = "Version : "
lblABOUT3.Text += My.Application.Info.Version.Major.ToString()
lblABOUT3.Text += "." & My.Application.Info.Version.Minor.ToString
[Code]....
how to correlate info from a textbox based on a listbox item selection. For example the user will select an item from the listbox, enter say the length of a song in the textbox say 2:00 for song #1, select say song #2, enter the song time for that song say 3:00, click on song #1 again and have the same textbox display the length of that song and be able to do that until there are no more songs on the list.
View 5 Repliesi have this .xml file read and display at runtime by vb.net2003. the .xml file is the database which contain various data and its not for adding more data or edited by user so i need to protect the file so that my code can read and display those data. can anyone know how to protect the file.
View 1 RepliesI would like to know if removing the following specials character would be enough to protect my program against SQL Injection :
"'/*$%()!#^&
I'm trying to create a password change form for my company's vendors. There are a couple of scenarios I could encounter doing this:
1 - User enters invalid current password
2 - New passwords do not match
3 - User's account is locked
4 - User cannot authenticate because password is expired
It's case 4 that I'm struggling with, because their is no way for me to take the password the user entered and verify it against active directory without getting an error.