Program License Generation And Encryption?
Jul 20, 2010Public Function Crypt(ByVal Str As String, ByVal Password As String) As String
Dim SK As Long, K As Long
Rnd(-1)
Randomize(Len(Password))
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Use The VS2010 License As A Substitute For VB6 License?
Oct 31, 2011I recently purchased Visual Studio 2010 and am wondering if it is possible to use the VS2010 license as a substitute for VB6 license.
View 2 RepliesProgram's Full Name And Driver's License Textboxes Not Working?
Nov 15, 2011I am new to VB. I use Visual Studio 2010. I got most of my rental program to work, but I am having trouble with the easy part. The First Name and Last Name are supposed to combine to the FullName. I know I have to use the assigning textbox text to the the variables. I haven't had much luck to to that.
'Project: Very Very Snowboards
'Date: 10/22/2011
'Programmer: X
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VS 2010 Rental Program Driver's License Textbox Won't Display?
Oct 30, 2011I am new to VB. I use Visual Studio 2010. I got most of my rental program to work, but I am having trouble with the easy part. I can't get the driver's license textbox to display on the bottom in the summary section.
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Make An Encryption Program?
May 12, 2010My idea is to have an input and an output text box. When the user presses a button the program will encode what is in the input text box and output it into the output text box.I also want to encrypt it with a secret key where the user enters a letter or set of letters into a separate text box which will effect the output. This process can be reversed to decrypt
View 4 RepliesHow To Do An Encryption Program That Encrypts With AES256
May 15, 2010I'm trying to do an encryption program that encrypts with AES256. I have searched for source codes, but I could not find proper result. Most of programs use Rijndael as algorithm, but I don't want using this class. I searched MSDN for AES classes, and I found AESCryptoServiceProvider, but I don't know how to use it.
View 4 RepliesList Encryption Types In Program?
Oct 31, 2011Could any one list the encryption types in Visual Basic.
View 1 RepliesSecure Program Data Encryption?
Sep 25, 2011What would be the best way of storing data securely away from users. What I have is a stack of files that get downloaded by the program, at the moment they COME encrypted, and stored in a temp location. Now where would be the be place to store them, and how would I store them? The program reads normal unencrypted files but in order for me to open them at the moment I nee to decrypt them in the temp folder and open them from there.This is bad because anyone could find the temp folder and simply copy out all the unencrypted files.Opening the files and then decrypting the bytearray is out of the question because the program only takes a filename as a option.
View 2 RepliesData Encryption Program In VB 2008 Express?
Mar 6, 2009I am currently working on a simple data encryption program in VB 2008 express. Basically, I want the user to be able to select any file type and the program will read the data and store it in a text box. The user would then input a key, push the encrypt button and the program would XOR each byte of data with each character from the key and store the data in the third text box. I have written a program that has similar functionality only, it will not read from files, it simply reads data from a text box, so I have a encryption algorithm that works.Here is my
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Encryption / Decryption Program - Slow Process
Jul 18, 2010I was board making web browsers and OS so, I tried making an Encryption/Decryption program. I surfed the net and found a source code. But, after doing everything, I debug it, click the encrypt btn and nothing happens. I though the encrypting is a slow process. The thing is the process should be immediate cause I downloaded this web browser called 'Areo Pack'. It comes with a few other program and one of them in an Encryption/Decryption program. I tried it and it was done in a few seconds. I tried opening the encrypted file with notepad and I see a text file with Chinese, Japaneses, Korean, etc.
Imports System.Security.Cryptography
Imports System.Text
Public Class Form1
Private Shared DES As New TripleDESCryptoServiceProvider
Private Shared MD5 As New MD5CryptoServiceProvider
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Simple Encryption / Decryption Program Does Not Process
Aug 13, 2009This is for a simple encryption / decryption program. However when I run this the program does nothing and doesnt respond. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim decryptedtext As String
Dim encryptedtext As String
Dim k As Int16
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Writing A Program That Will Encrypt Text Using AES Encryption
Feb 14, 2009I need some help with writing a program that will encrypt text using AES encryption. I'm not quite sure how to go about doing this.
View 1 RepliesEncryption Of A Text File + Decryption For Security Program?
Feb 10, 2011What I've decided to start working on is pretty much a personal project but something I may use in my UNI course in due time. I'm creating a security program with a set of access codes (yes I am a bit of a star trek fan) - 4 in total to be exact. I want to be able to use an Encrypted key file in form of a simple notepad created text file to update the codes at any due time. All I'm looking to do is write the access codes to the text file (say for a friend to use the program), Encrypt the file through the program and be able to also decrypt to obtain the new access codes on demand also via the same program. Once decrypted the codes can be read and verified if the user has entered each one correctly. I could hard code the access codes into the program but would rather do it the way I've thought of.
Back in the days of the old VB6 there was a simple method but for some reason that doesnt work any more. What I guess I'm looking to do is have 4 text fields where 4 digit access codes are typed into, have the program take them and encrypt each one is then written to the text file. Hoping that will make it a bit clearer what I'm trying to achieve as I think I made it sound like I want to encrypt the text file after the info has been written to it, which is of course one option so wouldn't mind know how to do that too!
Fail To Make A Text Encryption And Decryption Program
Nov 13, 2011I am trying and failing to make a text encryption and decryption program. How can I encrypt and decrypt text or text files?
View 6 RepliesWrite A Program That Takes A String Of Bits And Encrypts It Using DES Encryption?
Feb 19, 2010Alright, So ive returned to using vb after several years now. Ive programed in VB6.0 years ago and I was quite proficient at it. However after returning to vb (now using Visual Studio 2010). Either Ive forgotten everything, or something has changed. For a university project. Im trying to write a program that takes a string of bits and encrypts it using DES Encryption.
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Will End-user Need A Crystal License In Order To Use Crystal Report Part Of Program?
Jul 16, 2009I plan on designing a Crystal Report, and then calling it through VB.NET code. Will the end-user need a Crystal license in order to use the crystal report part of the program?
View 1 RepliesVS 2010 - File Saving - Simple Pseudo-encryption Program That Changes Each Character Into Another
Apr 22, 2011I recently made a simple pseudo-encryption program that changes each character into another. It is capable of encrypting and decrypting a string. This can also be done to any text file as well. The characters range from ASCII 32-254 (This on it's own may be an issue because of #127 being DEL).
Because I believed my own coding may be at fault, I attempted this with Triple Des with identical results.For Triple Des, the requirements for en/decryption was:
Encrypt: String to Byte
Decrypt: Byte to String
And to change them either direction, I used UTF8. I also attempted ASCII and UTF32, but I don't know what I should do. I am considering dropping this but I want to learn problems like this because I am currently in college and haven't started my core classes for programming yet and want the head start.
The point where I have come into a problem is attempting to do this to another file type like an image. I looked at the results from encrypting then decrypting and the results were similar, but it seems file encoding must be the culprit.
.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
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FTP As Activation License?
Dec 12, 2010Just looking at various ways to do so.I came accross an article which unfortunatly I can't find anymore. It explained it like this. (I'll try remember all of it)1) Put activation key in textbox12) Press button3) Checks with the FTP server if the title of a file (In the this case the license key) in the FTP server.4) If the file doesnt exist then a message box comes up incorrect license.4b) I the file does exist then my.settings.activate = 15) Next time its loaded up, the program checks if my.settings.activate = 15b) If not then an activation key must be put in and proccess starts again.
View 6 RepliesGetting Vb6 License Product?
Mar 27, 2012how to get vb6 license nowadays?does the visual studio pro 2010have a downgrade path to vb6?
View 8 RepliesPicking The Right License?
Jan 20, 2010My vb.net browser will be the first application I'm actually pushing out to the public.Everything else so far was for me and friends or some type of class. My problem is I don't know what license to pick to release it under. It's going to be partially open source and partially not.Whats included that i didn't write or make
GeckoFx - web browser plugin like ie but based off firefox
App Life Update - http:www.kineticju...te/Default.aspx ( I have the free limited license)
Sqlite - used for bookmarks
Other than those to plugins/dll files everything else i wrote myself or followed tutorials on and modified to fit my applications need.
Set Up A License That Expires?
Jun 19, 2009We plan on selling an application that I've made and we want to be able to force the user to buy a 1-year license for it. And of course after that 1-year we want the program to stop working and force the user to purchase another license.
I've seen many things in VB.NET with certificates/licensing but I'm just not familiar with them to be able to take it any further. And right now I don't have the labor to spend hours messing around with it.
Automatically Enter AVG License Key?
Jul 27, 2009I have a problem with my application. I have got it to the point of running the AVG installer, but it fails because a licence key is needed. I have the licence key, but the idea is that my application makes it easy for the user by them just needing to click through.
Is there a way to automatically input the licence key into the licence key field on AVG's set-up from my application? [code]...
How License Keys Are Created
Feb 12, 2009I have completed a vb.net project and now i need to set 30 day trial period for the software. what are ideas behind generation of license keys. How it is formed. How we can develop our own license keys without third party softwares for creating license keys.
View 3 RepliesLicense Key System For Application
Mar 19, 2012I have built an excellent licensing key system which works well on desktop pc's. Basically I run an algorythm on the Hard Disk Serial Number and the Customer Name. While this is not totally brilliant, it seems to work really well (on desktop machines or machines with real hard disks). Now that we come to Tablet PC's, I have found that the Serial Number of the "DISK" which is normallyan SSD is the same from one machine to the next - so all unlock codes end up the same. How about making a unique code for each machine I install my application on?
View 1 RepliesMake A Product Key As License?
Sep 14, 2009I am wondering how to make a product key as a license key for my VB.Net windows form application? Because at the end of the day, i would have to package it as a exe file and i would like to include in a license key for the user.
And also may i know how to package the whole project as a exe file such that after the user excute the installer, everything will run. like how you install windows xp like that.
Secure Way To License Software?
Aug 13, 2009What is the best and most secure way to license software? Is there an existing program for doing so? I want to sell a script of mine, but I want to make sure that users cannot redistribute or sell it themselves (of course, if they deactivate the registration on their own computer and choose to resell, that is their choice).
The software language is VB.net.
Since I am not sure whether or not I could host a registration database of any sort, is there any way to keep licensing self-contained securely? I would like the user to be able to download the demo and be able to upgrade to the full version somehow.
Seting Up A License Or Something To Act As Key For Software?
Aug 28, 2008I have an application that will be sold to a verticle market. Our techs will do the install, and the software requires hardware for it to work. But I still need to create something so that each customer has a key to use the software. So what is the best way to approach this. I don't high security, because the softare won't do a customer any good without hardware. But it's required in the bids that we do. I also have diffrent options for the software. Not everybody wan't all the bells and whistles, just the basic pakage.I was thinking maybe using a dongel for hardware key? But that more cost.Your thoughts?
View 5 RepliesVS 2008 - How To Protect DLL With License Key
Nov 24, 2009How can I protect my dll with a license key, I already have my licensing scheme but I don't know where to put it.
View 8 RepliesVS 2008 License Check
Sep 13, 2010The issue, is that I'm developing an app that won't be installed and will be used on a bunch of different PCs. The app is free, but uses some 3rd party tools and code, so the user must be aware of the licensing agreement for those tools.
Since it will be used on a bunch of PCs, I don't want the end user to have to accept this license agreement a million times.
Is there any way I accomplish this with a local resource of some sort?I was thinking I could add a license file that should be moved around with the executable, and that could contain a license agreement code, then i could prevent the app from being used without that file.