How To Digitally Sign Or Verify Any Type Of Files
Mar 4, 2010
How to sign or verify any type of file's (.txt, .dat, .doc, .jpg etc etc) in VB 6 or VB.net? I want to digitally sign any kind of file's (.txt, .dat, .doc, .jpg etc...) to verify that it isnt modified when I send the file to another person or my friend who is using same program which I have used to sign. I wish that if I can use random generator or give a password while signing the file, so that only who is using my program can see or read the file I sent across to other person.
View 1 Replies
ADVERTISEMENT
Apr 2, 2010
I want to digitally sign my exe. I have a .p12 file as digital certificate.I used signtool.exe for signing the exe. After signing the exe the properties > digital Signature tab is showing the right name but when I am doing double click on exe then the "open file-Security warning" window is still showing unknown publisher.How can I show right name of publisher in "open file-Security Warning" window.
View 1 Replies
Nov 11, 2011
how to do different things and right now I'm building a simple program to where the user inputs thier First and last name into two different text boxes and when they click on a button it tells them what they have entered.I'm trying to make sure that they have entered letters only in each text box and if they don't I want it to display a message box that says they need to enter letters only.The problem I am having is if they enter a number in both text boxes then that is the only way that it will display the error message box. Here is my code for the data validation for the user input.[code]
View 4 Replies
May 9, 2012
Ok, so today I wasted a bit of time looking for ways to use a text file to save login information. Basically, there are two fields, username and password, and two buttons, sign up and log in. When you click the log in button, I want it to verify the information entered in the fields, and when you click sign up, I want it to add the information to the file. It doesn't seem that difficult, but I'm have a lot of trouble finding a way to do it. I would be very grateful if I could find assistance with this on these forums.
P.S. If it was my decision it would obviously be using a database, but for this particular program I need to be using text files.
View 3 Replies
Dec 1, 2010
Im importing text from a .txt file using streamreader and when it reads in a � sign it converts it to the square symbol for a unknown character! If i put in a $ sign it imports it correctly!
View 2 Replies
Jul 13, 2011
I need to know how to get all the mime types available to any browser for a downloader for my webbrowser, so far it get's the mime type on navigate and returns it in the event handler but, in the registry any of the 2 ways that there are don't includeevery one, like I can't seem to find application/x-rar-compresses only zip and what not,
View 1 Replies
Mar 26, 2012
Is there way to set custom metadata to files of any type? I want the metadata to be copied when the file is renamed, moved or copied. I don't want to use ADS.
View 1 Replies
Apr 8, 2009
I would like to know if there are some in built functions for the scenario that is described below :
The input is the path of a parent folder. Wat the function must do is , it should list out all the .zip files inside that parent folder.The parent folder can contain any number of subfolders, and the same applies to the subfolders too ..
VB version is not a barricade. Any of the versions VB6 or VS2005 can do. Also is there any other alternative way if there are no inbuilt functions as such.
View 6 Replies
Mar 2, 2011
I am using an ASP.NET FileUpload to upload files to the server.How to upload it to the rootfolder of my project. I want to add the files to a collection or list of files to be shown on the webpage in the form of gridview.Each file should have a link to itself in the list So that it could be downloaded by the click-if desired.The gridview will also have a delete column so that I can delete any of the corresponding file-as desired.
View 1 Replies
Feb 5, 2012
I have a service that produces .txt files to a folder every 30 seconds. Is there anyway to delete files that are older than x amount of days?
View 2 Replies
Mar 31, 2010
what type of files can we search using Microsoft Indexing Service
View 3 Replies
Feb 10, 2011
I've created a little procedure that I use to verify if a value does actually exist. I'm currently using this all throughout my application for things such as verifying if a control's EditValue actually has a value. I was wondering if I have missed any scenarios where a value would not be available, missing, non-existent, blank, etc., and how would I incorporate in my procedure.
Public Function ValueExist(ByRef CheckValue As Object) As Boolean
Try
ValueExist = True
If IsDBNull(CheckValue) Then
ValueExist = False
[Code] .....
View 2 Replies
Mar 3, 2010
I am working on an app and cannot remember how to verify that the first three characters in a zip code are a specific number.
View 1 Replies
Jan 7, 2009
I want to use VB to set an existing RDP connection's credentials.Can I do that with code only?
View 3 Replies
Apr 28, 2011
I use the code below to get driver file sign info, it works well
Imports System.Security.Cryptography.X509Certificates
Dim cert As X509Certificate2 = New X509Certificate2("C:WindowsSystem32drivers cpip.sys")
MessageBox.Show(cert.Subject)
But if want to get EXE file signed info like
Dim cert As X509Certificate2 = New X509Certificate2("C:WindowsSystem32winlogon.exe")
MessageBox.Show(cert.Subject)
the error occured "Cannot find the requested object"
View 8 Replies
Oct 5, 2010
I recently upgraded to VB 2010 Express (from 2008), and I have a problem using the debugger. When I move the mouse pointer over an array variable, I only can get the value for the current index, and not values for all indices, as I did in 2008.
For example, if I move the pointer to classSize(i), I see the value for the current value of index i, but I do not see the plus sign which would display a drop-down list showing values of all elements in the array.
I checked for options (Tools > Options > Debugging > General), but did not see an option related to DataTips.
View 6 Replies
Nov 17, 2011
I have not been able to successfully verify a user with LDAP for an ASP.NET web application. I have done so on our own network against Active Directory, but this is against a server outside of our network that is OID (Oracle Internet Directory).Usually, I use the following code with no problem.
Dim myDirectoryEntry As New System.DirectoryServices.DirectoryEntry("LDAP://1.2.3.4:999/OU=SomeOU,DC=Something,DC=com")
myDirectoryEntry.AuthenticationType = System.DirectoryServices.AuthenticationTypes.Sealing
myDirectoryEntry.AuthenticationType = System.DirectoryServices.AuthenticationTypes.Secure
Try
[Code]...
After that, I haven't been able to find a method to verify a user's log in information with their password and then pull back some information.
View 1 Replies
Sep 28, 2010
I know this is a stretch, but I am looking for some .NET help with checking Joomla passwords.For those not familiar with Joomla password scheme, it looks like this: {MD5Hash}:{SALT}HEre is the code I am using:Joomla password:
9322a02004887255b76a6a8e8971aea7:5JTTaPQjA88247nCKkTILtv8TXFtZCED
User submitted password: 123456
Dim m5t() As String = dr("password").split(":") // splict Joomla password
[code].....
View 1 Replies
Jan 10, 2011
What is the easiest way to verify if a number is odd or even?I'm setting up a program, and it is checking if a user input number is even or odd, if its odd, it runs this, if even, it runs this.Its a simple if/then, else statement.
View 2 Replies
Apr 11, 2010
How would you verify if an IP address resolves to a computer name correctly from a textbox?
View 6 Replies
Jul 18, 2011
I have a dll installed on my machine and want to find a way to verify this programatically with VB.Net. I have been trying to use LoadLibrary but it always returns a zero. Can someone provide a code snippet of how I might do this?
Also, if there is another way to verify that a dll is installed, without having to supply a full path, please let me know.
View 7 Replies
Mar 20, 2009
Im exporting a datagridview to excel but i want to check if this datagridview has any data before i allow the user to export.Heres some code,
data=datagridview, con.ejecutasql=oledb returns datatable.dt = con.ejecutaSql("SELECT * FROM sistema")data.DataSource = dtPrivate Sub print_excel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
View 2 Replies
Feb 1, 2011
I have bulk email id in database. I need to verify whether email id is existing or not before sending a mail in asp.net.
View 1 Replies
Mar 31, 2010
There is a situation that I couldnt handle, I have 4 TextBox's and I am assigning the text to variable after loosing focus for 4 TextBox's as below;
(Variables assigned under class Form1)
Private Sub TextBox1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus
[code]....
View 3 Replies
Feb 13, 2011
what I have to do is a magicbox, i need to put 9 numbers in 9 text boxes, and verify that they r not the same, im doing it trough the TextChanged event. i do have some code, but is incomplete... and doesn't really work
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
TextBox1.TextChanged,
TextBox2.TextChanged,
TextBox2.TextChanged,
[code]...
View 1 Replies
Mar 11, 2010
[code] this code need to verify the level of login, i mean if the user is admin then proceed to the next form with privileges but if is a visitor then proceed to the next form but without privileges.
View 1 Replies
Apr 23, 2012
I've got records that I am adding to the database but I wanted to know how I can verify if the record has been inserted into the database. Below is the code that I am using
Imports Microsoft.Office.Interop.Access.Dao
Public DatabasePath As String = "C:WB2020WB2020WB2020inDebugWBS3000A.ACCDB"
Dim AccessEngine As New DBEngine[code]......
View 3 Replies
Nov 28, 2010
I am trying to verify that a string contains nothing but known values. In this case, I need to make sure it contains only "Shift", "Control", or "Alt", but not necessarily all of those. For example, these should be true: "Shift + P", "Shift + Control + H", "Alt + U; but these should not: "Other + P", "Shift + Fake + Y", "Unknown + Shift + E" etc.This is the code I tried to use:
If Not shortcut.Contains("Shift") Or Not shortcut.Contains("Control") Or Not shortcut.Contains("Alt") Then
MessageBox.Show("Invalid")
End If
I'm having difficulty wrapping my head around the needed logic to do this. I'm assuming there's a logic operator that can do this?
View 2 Replies
Jul 31, 2011
I am trying to get OpenSSL.net to 1) create a key pair to use for CA signing and 2) create and sign certificates using this CA. I have managed to create an RSA/SHA1 X509CertificateAuthority, and have created a X509Request and keys, but I am running into problems actually signing the request.
'create the request and request key
Dim rsa As OpenSSL.Crypto.RSA = New OpenSSL.Crypto.RSA()
rsa.GenerateKeys(1024, 65569, Nothing, Nothing)
[code]....
I am getting an OpenSslException on the line noted above, with the message error:0606B06E:digital envelope routines:EVP_SignFinal:wrong public key type error:0D0C3006:asn1 encoding routines:ASN1_item_sign:EVP lib
View 1 Replies
Nov 28, 2009
I got this nice piece of code from someone on this forum which only allows user to input numbers or backspace i need to modify it to allow the - sign so user can input a negative number Can someone share with me the code to modify this
If Not Char.IsDigit(e.KeyChar) Then e.Handled = True
If e.KeyChar = Chr(8) Then e.Handled = False 'allow Backspace
View 2 Replies
