I am using the method described in the following LINK and I am using the following code to encrypt:
'Page1.aspx
Protected Sub butEncrypt_Click(sender As Object, e As EventArgs) Handles butEncrypt.Click
Dim QueryString As String = "type=Int&pk=" & _primaryKey
QueryString = Tools.encryptQueryString(QueryString)
Response.Redirect(/SearchResults.aspx?Val=" & QueryString)
End Sub
and then finally de-encrypt:
[Code]...
I am attempting to find some code to use in VB.NET to decrypt a string that has been encrypted using the Java crypto libary.All of the code I have found so far uses an Initialisation Vector and Key to decrypt but the string has been encrypted using the Key only. (Using an Initialisation Vector is apperently an optional step in Java).Does anyone know of code that I can use (preferably in VB.NET but i could convert C#) to decrypt AES 128 Bit encoded string without an Initialisation Vector?
View 1 Repliessymbol is put into my code, it is meant to be decoded as a /And when I put a % symbol into my code, it is meant to be decoded as a :I am using regex to do thisHere is my code to decode the coded adress (no pun intended):
Dim info As IO.FileInfo
Try
Dim SelectedLstItem As String
[code].....
I need to work with Decoding so that I can Increase/Modify a String Value from 32 entries to 75 entries, and to include the corresponding checkboxes also.
View 14 RepliesI have a text box that accepts an 8 digit hex encrypted string and adds it to a listbox1. Then I have a button that when clicked takes the string from listbox1 and
1) reverses the string
2) subtracts 235
3) Converts it back to a 9 digit number
4) Adds it to listbox2 using the code:
Code:
Private Sub decrypt_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles decrypt.Click
[code]...
However something seems to be wrong because it get an arithmetic overflow exception. Does anyone know what happens to be wrong with my code?
i came up to create my own because i need to encrypt 10character string and i want it to output also 10character string..security is not my concerned here..what i want is encrypted string is not readable by the user or is not obvious to user.. is this possible by the use of Xor method?..BTW,its better if the output is alphanumeric.
View 3 RepliesConnection strings can stored in encrypted form in configuration file.
But some one can easily use the "UnprotectSection" method to decrypt the connection strings
I don't know how does this thing make it secure.
I'm working on a way to authenticate users in my app, and what I've come up with is the following method.To write to a database, the user must have an account in SQL server 2008. However, I still want people to be able to view the application if they don't have access, but only read, they can't sync any changes. This is working well, as I have a string array hard coded containing approved users:
Dim Users() As String = {"BWANG", "EDASALLA", "ERICHARDSON", "HALONZO", "JCHAPMAN", "SKIM", "PMACK"}
The one problem with hardcoding is that if I need to ever add a user later on, I'd have to release an update to the program. (which isn't hard as I already have updating built into the app, and users can still download updates even if they can't sync.)
What I'd like to do, is use an encrypted .dat file that contains the user names, and store that with the application, so that i could always be added to, and only one file would need to be downloaded.
I have code in place to encrpt and decrypt the .dat file (called users.dat) and this code works for single text entries in the file. I need to figure out how to load a list however into the array in place.
Imports System
Imports System.IO
Dim userfile as String = "C:users.dat"
Dim Users() As String = Data.Decrypt(File.ReadAllLines(path))
Basically each line in the file will have an encrypted user name, and i want it to decrypt each line and store it back into that authorized user list.
I have a text box that accepts an 8 digit hex encrypted string and adds it to a listbox1. Then I have a button that when clicked takes the string from listbox1 and
1) reverses the string
2) subtracts 235
3) Converts it back to a 9 digit number
4) Adds it to listbox2 using the
Private Sub decrypt_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles decrypt.Click
Dim i As Integer
Dim buffer As String = ListBox1.Items(i)[code].....
However something seems to be wrong because it get an arithmetic overflow exception.
I have a pretty stupid problem I've done a simple string encoding function but I'm having some trouble to decode it again
Encoding Function
Private Sub Encrypt(ByVal EncString As String, ByVal blnStatus As Boolean)
If blnStatus = True Then
[code]......
I'm having difficulty decoding text in a VB GridView. Currently I have the following code:[code]But the text in "view" mode is still HTML encoded while in "edit" mode they are decoded.How do I get it so it is decoded in both modes?
View 1 RepliesIs there an easy way to encode and decode xml file so that it can only be read with a program that knows how to decrypt it.Basically i want to encode xml file and have a program that reads it.here is the code that is reading it now. thnx to .paul i learned how to read xml the link to that topic is How to read and sort xml
Quote:
vb
Public Class Form1
Dim ds As New DataSet
[code]....
Hey guys, I am trying to send data from client to server (encrypted) and the string sent from the client is not the same as recieved from the server. I've been killing my brain for hours to get this to work but I cant manage. Im converting everything to Base64 string.
Client:
Public Sub SendMessage(ByVal msg As String)
Try
SyncLock myclient.GetStream
sw = New IO.StreamWriter(myclient.GetStream)
[code]....
I am writing some rest calls to the LinkedIn API using web request and have hit an encoding issue.The LinkedIn API takes requires an encoded URI as one of the parameters on the lookup i am trying to run.
We are calling the api through .Net's WebRequest.Create; and when we pass in the URI it decodes it and as a result we can't get the data from the call. Im trying to open a URI like this[URL]..Is there a mechanism in the webrequest class to stop it decoding the passed in URI; or a work around for this?
I'm having problems decoding a file with "ISO-8859-1" encoding.For example, I can't decode "%E7" to "รง".
View 1 RepliesI have a file from the client which is a text file. I have to decode the file to a graphical representation. Is there any way I can do it?
View 16 RepliesI'm using some functions which can be compared to encoding/decoding, but it's a really simple and basic application, not really an encoding function.The problem is, the decoding function doesn't seem to work. For some reason, it doesn't work correctly, and I'm a bit stressed, so even after searching for a while, I can't seem to find it.[code]
View 2 RepliesI'm getting the following error when decoding a creation date:A first chance exception of type 'System.ArgumentOutOfRangeException'occurred in mscorlib.dll Hour, Minute, and Second parameters describe an un-representable DateTime.
I'm doing pdfdate.decode(xdoc.info("creationdate"))
Here's the info from the PDF file:
/CreationDate (D:191010319150120)
/Producer (Acrobat Distiller Daemon 3.01 for Solaris 2.3 and later
(SPARC))
/Creator (tif_convert_2_ps())
/Title (/tardir/tiffs/a386689.tiff)
/ModDate (D:20010320070957)
The Modification date seems to be a valid date, but, the creation date looks kinda weird to me. More intriguing is that when I get the properties of this file using ADOBE Reader it shows a valid date for the creation date field.
implement the huffman decoding algorithm
View 1 Replies1.Converting a wav file to mp3
2.Create a mp3 player by use of a decoder for playing this mp3 file.
I want some help from the best audio programmer who can explain me the decoding logic used to play the mp3 file(Programatically) I am aware of the bit patterns and the data chunks of mp3.I have the knowledge of the data chunks used in mp3 and wav files .I have also used winmm.dll file earlier to ascend into and descend out of the data chunks of wave files.But don't know how the bits are played in a player.Now I need to convert the wav file into mp3 format by use of some encoder program.I came to know about some lame encoder program but am unable to get how to start understanding it's code.
i'm currently making an app that needs to run a query between two dates. this app will run automatically, so i need to put the dates as today and yesterday, essentially.
[Code]...
Private Sub txtname_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtname.TextChanged
myConnection.Open()
[CODE]...
I want to four digit code like Abneesh than first query finding max of A and second string take string A than code generate like A001----------A999
I make a query in coding. But I got conversion error.My query is below
Dim strSelect As String = ""
strSelect = "SELECT " & _
"Description As [Desc], " & _
[code].....
Exception error is like
Conversion from string "iif(CurCons = 0, " to type 'Double' is not valid
Actually, in my report, i wanna show if it's zero then '-'. If i set it in this string.I got another error like below The provider could not determine the Decimal value. For example, the row was just created, the default for the Decimal column was not available, and the consumer had not yet set a new Decimal value.
From da.Fill
Dim cmd As New OleDbCommand(strDynamic, m_DBConn)
Dim da As New OleDbDataAdapter(cmd)
da.Fill(ds, "tblCur")
I am working with VB in asp.net, The basic problem is, I want to pair up the elements in a string, exactly like request.QueryString() will do to the elements in the query string of the web page.
[Code]...
In my project I need to log all queries executed against my database. As an example we can use the staff user data here. In that class I have a function generating the command with the parameters as follows:
[Code]...
Should be simple, but can't figure out how to do it.
Want:
<a href="/sites/folder/page.aspx?variable=123456">Test</a>
By:
<a href="/sites/folder/page.aspx?variable=<% Request.QueryString("variable1") %>">Test</a>
I've tried <%# and <%= not expecting either of them to work, but trying them out.
Right now me filling a combobox by this way.
[Code]...
By this way combobox CmbId is storing above sql query ouput. But now i want to get above query ("Select Name from StudentDetails where Id=10 ") result to store in a variable string. How can i do this ?
How to encrypt query string in vb.net ?
View 2 RepliesWhat I want to do is take the full contents of the address bar and see if everything after the site path (i.e. everything after the question mark), contains a certain string, and if it does then return a path using the site URL and that string. An example and some code to make things understandable:
[Code]...
I have a SQL query string that gets the top 5 records from a database however 3 variables are passed with the sql query that gets specific data.[code]
View 5 Replies