MD5-encryption Is Acting Up?
May 30, 2011I have a problem with an MD5-hash algorythm that's acting very oddly.Here's the
vbcode
Imports System.Security.Cryptography
Imports System.Text
[code].....
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.net Encryption Result Does Not Match The Xcode Encryption Result Given The Same Input Parameters?
Jun 21, 2011I have set up a method in vb.net and in xcode for encrypting a string using as far as i can tell the same parameters for an AES encryption.I've looked all over the place but cannot find information on whether they use the same encryption algorithm and settings.
this is the vb.net code:
Dim encryptAES As New AesCryptoServiceProvider()
Dim encoding As New UTF8Encoding()
Dim encryptor As ICryptoTransform
encryptAES.Key = encoding.GetBytes("12345678901234567890123456789032")
encryptAES.IV = encoding.GetBytes("1234567890123416")
encryptAES.Mode = CipherMode.CBC
[Code]...
For Each Variable Acting Like A Local Var?
Apr 21, 2011I stumbled upon something i don't quite see the logic of. Let's ork with following piece of code:
For Each ds As DerivedScale In List
If ds.ScaleID = scaleId Then
ds.ScaleID = ds.ScaleID + scaleStep
[Code].....
This piece is written for 2 records to change place and change the sequence number (scaleid). The arrow indicates where the issue occurs. The item "ds" is replaced by the object 1 indexnumber higher/lower. This does however not effect that object in the List. So when i check, item ds isn't set.
However, when i look at ds.ScaleId = ds.ScaleID + scaleStep, this is reflected in the List.
So what I am wondering is: is "ds" acting like a local variable here, and can i only make changes to it's properties?
SQL Keys Acting A Little Strange?
Jun 15, 2011I have a bit of a strange problem with MySQL that I've never seen before. Basically, I need to enter the same entry into a table x number of times. The Primary Key is auto increment so there shouldn't be any duplicate value problems. However, it takes the last few columns and seems to clump them all into one value and is using that as a key. The error I'm getting back is:Duplicate entry '80-0--2011-06-16-0-1' for key 'idx_mtind you, there is no field called idx_mt. The primary key field is called just ID. And that 80-0--2011-06-16-0-1 is the last 8 columns or so (which you can see the names of in the cols variable) concatenated, which they obviously shouldn't be doing. Also, the first time the loop runs through, the entry goes through, but the later ones conflict with it. I confirmed that this is the problem by changing one of the last 8 columns to a value based on a loop, and that went through with no problems.
Dim cols As String = ""
Dim msi As System.Globalization.DateTimeFormatInfo = New System.Globalization.DateTimeFormatInfo()
[code]...
Forms :: Dataset Query Not Acting Right?
Nov 29, 2011I have an application that uses bound controls on the form. I have a dataset associated with my form and have a custom query written for one of my tables that is supposed to get two fields in the database and order them by their ID in descending order. However, when I run the program, the bound controls do not contain the last record, but the first.
View 8 RepliesNew Enhancements Or Webbrowser - Acting Up ... Part 2
Jul 13, 2009part 2 of 2: i was just wondering, is anyone else experiencing problems with their webbrowser, as in not displaying the right side links properly, and the reply, always sends you to an off screen, with no edit options, or being able to insert code in. this is currently happening in my firefox browser, although the i.e.8 has no problems... just want to know, to see if maybe it is a bug with my firefox, or they are again, updating the forum.
[Code]...
VS 2008 Listview Acting Not Normal
Nov 29, 2010I'm trying to add items to the listview, but ever time i add a icon the Listview freezeslinks a white color for a millisecond.A millisecond is not a lot, but when you add 5 items per second to the listview then all you see is a white shade blinking. I tried slowing the thread down so it takes longer for it add the items still no luck.
View 5 Replies.net - Does For Each Acting On A List Always Visit Elements In The Same Order
Nov 4, 2010Will the elements in myList always be visited in the same order with a For Each loop (assuming I don't alter the list)?
Dim myList As New List(Of MyElement)
....
For Each myElem As MyElement In myList
' yadda yadda yadda
Next
VS 2008 Sending Mails - Acting Like A Server?
Jun 20, 2010I have a software under contruction for a small firm. And it requires email functionality. That is, whenever the users in the main database reaches the payment date, an email will be send to that user as a reminder.Or, in certain period, the admin needs to send a notification mail to all the users in the main database.
So, how can I incorporate that facility in my main app ?My present idea is to create a separate app for send the mails. That is, when the admin compose the mail and selects a bunch of users (as recipients) from the database, all the message will be saved to another database (for mailing application) and will start the mailing app. This mailing app will check it's database for any pending emails to be sent, and if there exists any pending mails, it will start sending one by one. After sending each mail, it will remove that from the database.
What's your idea ? Does it sounds ok to you I don't want the user of my main app to know that there exist another program, running in background, sending emails.
VS 2008 : Strings Acting Up - Could Not Find A Part Of The Path
Jun 27, 2010i have the following code
Dim url1 As String
url1 = "www.google.com" & GWP_NodeList.Item(i).SelectSingleNode("icon").Attributes("data").InnerText
Dim webClient As New System.Net.WebClient
Dim bytes() As Byte = webClient.DownloadData(Url)
[code]....
I get this error:
Could not find a part of the path 'D:UsersGlenn RuysschaertDocumentsVisual Studio 2008ProjectsUITestUITestinx86Debugwww.google.comigimagesweathersunny.gif'.
How on earth did it all of a sudden add the startuppath to my url?
VS 2010 : Split Acting Different With Word Document Text?
Oct 12, 2010I'm having some difficulties chopping up a word document. I think the problem may be that it's 900+ pages, but I'm not completely sure.The separate documents within the document file are separated by x of 100 documents. I'm trying to split at the "of 100 documents", however when I try to split the string that I put this word document's contents into, it will only split with the first letter I give. So, when I try to split it by "of 100 documents", it will only split by "o".
View 1 RepliesVS 2010 Custom Panel Not Acting As Parent To Contained Controls?
Apr 9, 2012I created a simple custom controlled Panel for double buffering. When I use the control in my toolbox it works just fine, but when I attempt to add controls inside the panel those controls aren't staying when I move the panel around. My custom panel isn't acting as the controls' parent. I verified this by looking in the designer code.
I tested a standard panel on the same form and it works perfectly normal - as I drag the parent Panel the interior controls move along with it. It is only my custom Panel which doesn't seem to detect when another control is placed within it.
Here is my constructor
Public Class DBPanel
Inherits System.Windows.Forms.PictureBox
Public Sub New()
[Code].....
VS 2008 : Making 'main Window' Form Acting As A Container For The Other Forms?
Mar 17, 2009Am devloping an application with multiple forms, which reside on top of a main form. i.e the main application window. The 'child' forms do not need to be linked in any way as they do not pass information to the parent form, as all the parent form does is act as main window.Now I would like to know what is the correct way for the 'main window' form acting as a container for the other forms? So that all the smaller secondary forms stay focused on top of the main application form, that when the main window is minimized, so these forms should do also etc..
I have read other posts and they mention, leaving all the forms standard i.e. IsMdiContainer = False and then using form.showDialog() to call the secondary forms. This did not work for me as what happens is that as soon as I give focus to the main app form, the secondary form disappears underneath.I tired making the main app form IsMdiContainer = True and when it loads calling:
frmMemberForm.MdiParent = Me
Now this works, because I can click off the form and minimize the app etc and the frmMemberForm doesn't disappear. However if i close the MemberForm and reopen it, it looses this property and once again when it looses focus, it will disappear.
Have A Column In The Datatable Called Amount And A Textbox Acting As The Filter Called Say Maxamount To Set It?
Feb 9, 2011i was wondering if it possible to have a condition where lets say you have a column in the datatable called amount and a textbox acting as the filter called say maxamount to set it so the rowfilter when filtering the table will sum the number in the amount column until the number in maxamount is met, then stop and only return the rows where the total sum of the amount column is equal or less than the maxamount value, so i guess if the next row takes us over the maxamount it discards this row and returns the rows previous to it. is this possible using datagridview rowfilter or should i be loooking elsewhere to achieve this?
View 4 RepliesVS 2005 : Object Not Acting Like An Object?
Mar 14, 2010I am attempting to figure out why this code is not working in VB2005.I am trying to run a check on a set of 25 buttons in a 5 by 5 square. they are label "cmd" & X & "x" & Y whereas X and Y are the x,y coordinates.cmd1x1 through cmd5x5 I am trying for this code to set varMapBefore() to either 0(for D) or 1 (for L) for each of the buttons cmd1x1 through cmd5x5 and then join them together at the end for an output.but varMap wont act like an object. What am I doing wrong?
Private Sub cmdStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdStart.Click
Dim varMap(0 To 24) As Object, varMapBefore(0 To 24) As String, varMapAfter(0 To 24) As String, varCheck As String
Dim varCount As Integer, varX As Integer, varY As Integer
varCount = 0
[code]....
.Net Using RSA Encryption?
Mar 25, 2012is there anyway that I can convert this to use RSA encryption?
Imports System.Text
Imports System.Security.Cryptography
Imports System.IO
Public Class ClsEncryption
[code].....
Encryption App Using Xor .net?
Jan 28, 2011I have been trying to create an app that will do xor encryption. I have tried a few different functions but none of them seem to give me what I want. I need it to put the coded text into a 7 bit ascii string. For example if the key was a - 1100001 and the text to be encrypted was s - 1110011 then it would return 0010010 as the encryption. One of the pieces of code I tried to use
Public Function XOREncryption(ByVal CodeKey As String, ByVal DataIn As String) As String
Dim lonDataPtr As Long
Dim strDataOut As String
Dim temp As Integer
[code]....
This returns a hex digit though which will not work for what I want.
IDE :: Dll Encryption?
Sep 3, 2009have made a library for my vb.net project by combining 3 libraries (using ilmerge).
View 3 RepliesRaw RSA Encryption With VB
Nov 15, 2011I am attempting to create a program that can do raw RSA encryption (performing the encryption without using 'Encrypt' and 'Decrypt') of a user's message that can contain a-z, A-Z, 0-9, and [,.;:'"()]. I've attached a screen shot of the application form.
Basically, the user will pick from a list of prime numbers from the first box and input them into p and q. They will type their message in the designated textbox and then hit <encrypt> which will encrypt using p and q and then show the encrypted message below. I'll leave out the Key box since that deals with the math behind the encryption.
The part I am stuck on right now is assigning a number to each one of the characters so that it can be encrypted. These numbers need to remain the same so that the message can be decrypted as well.
.xml Encryption For Protection?
Nov 23, 2010i 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 RepliesAES Encryption / Decryption
Feb 1, 2012Here is some code that works well for strings:
[Code]....
modifying these functions to encrypt/decrypt byte arrays rather than strings. Also, to have the functions return the encrypted/decrypted byte array, rather than a string.
Barclays Encryption Asp.net (VB To C#)?
Oct 12, 2011I am trying to implement the encryption script from Barclays payment gateway, however it's in VB and the rest of our site is in c#.
The script is
Public Class Example
Inherits System.Web.UI.Page
#Region " Web Form Designer Generated Code "
[code]....
How am I able to either run this VB in my C# aspx page? Or do I need to convert it to use c#?? In my aspx page, I have the first line
<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="utf-8" CodeBehind="encryption.cs" %>
Encryption Of Txt Files
Jun 2, 2009my program takes a txt file and encrypts it successfully but it returns the wrong thing when decryting.[code]
View 4 RepliesGetting AES-Encryption Work In .NET?
Sep 23, 2010I have a problem with an encryption made in AdobeFlex and which I need to translate to VB.NET.The core is a AES Encryption, but I tried several ways and code and the encrypted strings weren't the same The original Flex Sourcecode is:
VB
private function encryptAES(arg1:String, arg2:String, arg3:String="aes128-cfb8", arg4:String="None"):String
{
var loc1:*=com.hurlant.util.Hex.toArray(com.hurlant.util.Hex.fromString(arg2));
[code]....
My question is how to get the code work in VB.NET
RSA Private Key Encryption?
Aug 10, 2009I'm looking to use RSA Asymmetric encryption to encrypt some data. I've read this article on the forums with a similar title, but it did not answer my question. What I would like to do is use the private key of an RSA key combination to encrypt (sign?) the data and use the public key to decrypt (verify?), as per this wikipedia article . I would like to use this method because I want people to be able to read the data, but not create it themselves. I've copied the code from Peter Bromberg's article RSA Encryption in .NET Demystified , but always get an exception with the "Bad Key" message. If I use the public key for decryption, it works fine (the opposite of what I want). use the public key for encryption.
View 2 RepliesSQL Password Encryption?
Oct 20, 2011In my database I have a column that contains the passwords, and I use the
View 3 RepliesUsing Own Encryption Algorithm In VB?
Aug 21, 2009How would I be able to use my own Encryption Algorithm in my program such as encrypting text. I havn't been able to figure this out.
View 1 RepliesVS 2010 Getting The AES-256-CBC Encryption?
Apr 19, 2012i have in php two functions, one to encrypt and one to decrypt.
PHP
function Encrypt($message) {$Method = "AES-256-CBC";$passPhrase = "key";$iVector = 1234567890123456;$encryptedMessage = openssl_encrypt($message, $Method, $passPhrase, $iVector);return $encryptedMessage;}function Decrypt($message) {$Method = "AES-256-CBC";$passPhrase = "key";$iVector = 1234567890123456;$decryptedMessage = openssl_decrypt($message, $Method, $passPhrase, $iVector);return $decryptedMessage;}
what i want to do, is encrypt a message, using the same method in vb.net as i do in php, how would i go about doing this?
Which Encryption Method Is Better?
Aug 9, 2009I've seen a lot of threads on the web discussing about which encryption algorithm is better.According to what I've read, AES encryption algorithm is based on Rijndael's algorithm, and the first is the one being implemented by the US's government to secure TOP SECRET files.From what I've tried RijndaelManaged only supports 128bit long keys (that would be a byte array with 16 byte values, right?) and not 256 as I had first thought; however, AES seems to support 256bit keys (or is it all the way around?), I haven't personally tried DES nor TripleDES.
So, which one is better or more secure? And what's up with asymmetrical encryption? What's the difference? Can both symmetrical and asymmetrical encryption be used for the same thing?
.Net And PHP Rijndael Encryption Not Matching?
Sep 12, 2011At first i thought it was the padding since mcrypt uses zero padding but i changed the php to use PKCS7 and get the same exact results.I think it has something to do with the padding in the php.Test output from .Net:
Key: d88f92e4fa27f6d45b49446c7fc76976
Text: Testing123
Encrypted: /DMkj7BL9Eu2LMxKhdGT+A==[code]......