Sending Asymmetric Encrypted Data Over To An FTP
Sep 9, 2011
I have been using RSACryptoServiceProvider and was using the template code provided from the MSDN resource page.url...I wanted to encrypt the data on my computer and transfer the data to the FTP server and have it decrypted there. I have the encryption and decryption code but it is in the same program and only work during the instance it is open. The intention is to have a program that will encrypt and send the data to the FTP Server. There will also be a VB Script on the server to decrypt the data and store it in a separate location. How do I get it to store the public key on my computer and the private key on the server? Also, how to I transfer the encrypted data over to the FTP and have it saved there?The purpose of this project is that we have people located over the globe and are sending sensitive information to an FTP server at the home office. My boss has insisted on the data being encrypted before sending anything. But, on the server it will be decrypted so that a select few can go through the information.
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Oct 14, 2010
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?
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Nov 4, 2010
I have a signedXML object Dim signedXml As New SignedXml (envelope)I need to set the SigningKey property of this object signedXml.SigningKey..I also have my certificate object Dim cert As X509Certificate = Me.GetX509Certificate...How can I set the SigningKey property of signedXml using my cert.In .NET 2.0 each X509Certificate had a 'Key' property which returned an RSA object, but in 3.5 this property is removed.
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Feb 21, 2011
i have an encryption code which i have created in C i want to use this code while a button is pressed so that the data gets encrypted how to do this?
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Oct 23, 2011
I'm using this function to encrypt data but how do I decrypt it?
Public Function GenerateHash(ByVal SourceText As String) As String
[code...]
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May 17, 2009
I want to get input data from user and encrypt them and save to database. Is it possible to retrieve this encrypted data and show in DataGrid?
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Jan 24, 2011
As we pass data to a database in a clear cut way, there may be situations, when we might fear data stealing. So can we simply encrypt data at the time of insertion, so that the data privacy will be maintained and the front end can only see the data.
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May 25, 2009
Before storing information into the database I encrypt strings. It's the problem, is it possible to generate and show these encrypted data in CrystalReporter? (I want to show decrypted data)
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Jun 24, 2011
I'm attempting to use symmetric encryption to encrypt some data, and store the key necessary to decrypt with the data in a MemoryStream. (While I know that this alone is really dumb security-wise, I'm going to use RSA to encrypt the symmetric key. Right now, though, I'm trying to just get this part to work.)I'm using the FileHelpers library to parse the data for my delimiter (the semicolon, as I don't believe I'll ever have a semicolon in the data). Unfortunately, in my decryption function, when it's parsing, it only returns back one record. And, if I show the entire string of encrypted data created at the end of this function, it doesn't appear to be using multiple records.I'm wondering if when I create the new cryptostream, it's defaulting to the beginning of the memory stream, so when I write my encrypted data, it overwrites the data I had just written to the memory stream.[code]
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Jun 26, 2011
I have to make files encrypt in my application. Now, I'm writing the encrypted data to temporary files (fsOutput in the code). I upload this file by FTP to the server. How should I rewrite my code if I want to upload without creating a temporary file and by using stream? My FTP client is able to upload from stream. My FTP client uses PutFile method to upload files ('Upload from stream by StarkSoft ftp.net in my code)
[Code]...
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Sep 19, 2010
I need to control a device with a GPIB port. I have the commands that I need to use to do this; but I don't know which is the sintaxis in Visual Basic.
For example if I need to send a instruction like "START:0.01" to the external device which are the libraries that I have to include?, how should I write the programming line to do this?
The main tasks that I need to program are sending data, receiving data, and saving data
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Jun 16, 2010
I've code this code below:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim hwrRequest As HttpWebRequest = HttpWebRequest.Create("http://www.example.com/web-service.php")
[Code]....
The MsgBox() at the end shows the response, which as I've added to my script, echos the result from the $user and $pass variables which are supposed to retrieve those details being written to the stream above, but they show up empty.
I'm retrieving those values by doing: $user = $_POST["user"]; $pass = $_POST["pass"];
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Jun 27, 2011
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]....
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Nov 11, 2009
Im woundering how does Receiving/Sending data work in a TCPClient/Server that is connected in the same networkstream.
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Mar 2, 2010
I'm having a heck of a time figuring this out, the tutorials I found on the web are not complete or are for VB 6.0 (obsolete in some cases). On the C++ side I have the following ::
hwndExternalApplication = FindWindow(NULL, L"Dromocast Client");
SendMessage(hwndExternalApplication, WM_SETTEXT, NULL, (LPARAM)"Hello");
"Dromocast Client" is my visual basic application, and I checked to make sure it's not NULL. In fact I get made sure I'm getting some data on the VB side. On my Visual Basic side I have the following
[Code]...
When I send the data over it's garbage, meaning strTemp comes out as all these chinese characters, and my title bar on the visual basic program gets garbled with a bunch of chinese characters as well. My guess is my "SendMessage" is written wrong, or I'm doing something silly, but I have no idea what. I'm not a windows programmer so I'm kinda trying to figure this stuff out by googling.
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Jan 5, 2010
I am currently writing a visual basic program that gets data from a serial port. everything is connected up but the data is not received until my device on the other side is turned on on the other side. which condition can i use in my loop to ensure that i only start comparing when i have started to receive so that my loop will not hang as there is no data input?
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Nov 14, 2011
Currently I had write a simple VB code, my aim is when i click "Forward" button then the vb will send a character "A" to PIC, "Reverse" button will send "B" so I write my vb code for sending as below:
Dim Forward As Char = "A"
SerialPort1.Open()
SerialPort1.Write(Forward)
For the receiving part, after I received the data from PIC then I will show it at the label which act it as a screen. the receiving code as below:
SerialPort1.Open()
receive = SerialPort1.ReadChar()
If receive = "A" Then[code]....
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Dec 4, 2011
I am working on system support for an electronics project wherein I have to receive an 8 bit (binary) data through a USB port and store either the binary or the corresponding decimal into a variable. How can I implement this in visual basic 2010?
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Dec 1, 2010
i have a similar question so i thought i might post it here rather than clutter the place with a new thread, if that's okay.first off, i'm using VB 2010 Express, if that makes any difference.second, i'm trying to send data to form2 from form3 rather than the other way around. i'm still pretty much new to VB, but have a lot of experience in PHP and some in java. i'm making a basic program that creates critters on form3 and then adds them to a table on form2.[code]then adds a value of 1 to the progress bar (i still am trying to figure out how that works) on form2.
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Jun 11, 2011
how to connect and view data in a sql databse table. Does anyone know how to send data from say two textboxes to the table [Code]
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Apr 7, 2012
i have created a MDI form and i have a child form that collects data and inserts it into access 2010 DB however it does not work .my code is odd and i am trying to use mysql syntax here is the names and opject types used in the sql code
intID = a text field that is autogenerated with a number
txtFirstname.text (text field)
myDOB is a DATE variable which is collected using a date picker (myDOB = dpDOB.Value.ToShortDateString)
same goes for mysubs
SQL
metag
INSERT INTO members (ID, FirstName, surname, DOB, SubsDate, HouseNo, Street, Town)VALUES ('" & intID & "','" & txtFirstName.Text & "','" & txtSurname.Text & "','" & myDOB & "','" & mySubs & "'" & txtHouseNo.Text & "'" & txtStreet.Text & "'" & txtCity.Text
i then get nothing but errors
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Jul 31, 2009
I am sending some data over a networkstream. The datasize is 97 The buffersize is 1. Data is a list of bytes. When the bytecount reaches 94 the do while loop exist itself.
[Code]...
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Dec 10, 2009
I have a program that I collect data using a com port. I display that using special visual controls - no problem here.
What I would like to do is to send this same information out over the network via ethernet to another PC located in another room.
I presume I would have to have another copy of the program on the second pc as the information is simply duplicated but I am not sure how to get the data out of one to the other
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Nov 9, 2011
have gps constantly sending data but can read it from the com port
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May 28, 2010
I'm creating a search form using an asp:button control with the urlpostback set to a results page. The problem is, the asp:button uses Visual Basic and the search results from Google require Javascript.
Is there a way to take the data from an asp: textbox in VB and then send it to another page that uses Javascript and use the data?
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Apr 9, 2010
Given the following information
Public Enum Request As Byte
None = 0
Identity = 1
License = 2
End Enum
Protected mType As Communication.Request
mType = Communication.Request.Identity
Debug.Print (BitConverter.GetBytes(mType).Length.tostring)
2
Why does bitconverter report that mType is a length of 2. I would have thought that passing a Byte into BitConverter.GetBytes would just return the Byte. I mean it's no big deal because it's only sending a very small block of data across a TCP Socket, but I'm just intrigued why it thinks it's 2 bytes.
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Apr 23, 2009
I'm working on a project that involves sending information through a GSM module, this module is connected to the system through a USB port. the information to be sent is gathered from a database using VB, now I need to send the information from my VB program to the USB port for onward delivery to the GSM module.
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May 19, 2010
problem is when i enter any letter in the alphabet in textbox1 it gives me an error but when i enter any number on it, it goes perfectly to the database. i set the data type into text(all 3 of them). the other two textbox work just fine. textbox1 is the only problem.
i just want the textbox1 to accept any input not just a number like the other 2 textbox work..
heres the code:
Imports System.Data.OleDb
Public Class Form2
Dim cn As OleDbConnection
[Code]....
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Jul 30, 2010
How i can send data from one form to another form through a network? i'm not asking for the codes, i just want to know what i should do to accomplish this task. i'm conceptualizing a game with the following details:
1.) there are two players, connected through a network
2.) they take turns looking for words from a puzzle of randomized letters
3.) after the given time has elapsed their words are checked and if both players has the same word, the word is removed
4.) the score is tallied
My question is, how do i get the words from the other form? specifically, how can the server form get the words from the client form? is it possible if i use xml? or can the server form access the variables of the client form? (i don't think it can, though)
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Aug 27, 2010
Actually I have created a chat application is it possible to send data to particular client only?
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