Store The Encrypted Value In The Dll?
Jun 7, 2010I would like to know how I could encrypt the url and store the encrypted value in the dll?
And I would also like to decrypt it from the dll when I need it for later?
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Store An Encrypted Password Into A Database?
Oct 17, 2010I need to be able to accept a password from a user in a WPF app, encrypt it then store this in a database and be able to decrypt later on. However I'm not sure how to implement this.
This is completely trivial so whether it's safe or not doesn't matter. All I need is for it to get working only I'm unsure exactly how to do it. I've tried playing around with the DESCryptoServiceProvider() but haven't gotten anywhere.
To be clear, how exactly do I go about converting a simple password into something that's been encrypted and storing it in the database (and what fields would I store it in). At this point, I'm happy if there's only one key and that key is being defined in the source code.
Store User Passwords In Sql Server Express Database In Encrypted Form
Sep 2, 2009I use AES encryption in my vb.net 2008 windows forms apps to ....
1. Store user passwords in sql server express database in encrypted form
2. decrypt the encrypted Sql server express connection string password on the fly when connecting to SQl Server over a vpn or direct to web based sql server database
3. decrypt the encrypted ftp site password on the fly when my application connects to my ftp site to upload client's database backups
The issue I have is that the secret key for the encryption / decryption is hard coded within the encryption/decryption functions. So anybody who decompiled my application would be able to generate the same encryption, as they would have the encryption secret key How can you hide the encryption secret key so that if anybody decompiled my app they could not reproduce the decryption function
Decrypt Java AES 128Bit Encrypted String Which Has Been Encrypted Using Key Only (no IV) ?
Oct 14, 2010I 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 RepliesInputBox Function - Program - Allow User To Input 5 Payrolls For Store 1, Store 2, And Store 3
Mar 22, 2012I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
Store Whole Numbers And That A String Is A Varialbe Used To Store Any Text?
Feb 19, 2009i know that integer is a variable to store whole numbers and that a string is a varialbe used to store any text, but what variable type would you use to store a number that has decimals?
View 7 RepliesDecrypt A File That Was Encrypted With Des?
Nov 10, 2011i am trying to decrypt a file that was encrypted with Des. However not all of the file is encrypted just a few lines are. Here is an example of the file im trying to decrypt:
Random text
Encrypted Text
MD5 Hash
Encryption Key(Only there for tests)
Number of encrypted lines
The idea is to read the last three lines into variables and use them to decrypt the text. At the moment i use the number of lines - (the number of encrypted lines + 3) to find where the encrypted text starts. Then i was trying to copy the encrypted text to a temp file so i could run the code bellow on it, however i am getting an encoding error apparently i need to be using base64 or something. So my question is can anybody explain to me or show me how i can pull the encrypted text out of the file so that i can use the code bellow on it.
Dim DES As New DESCryptoServiceProvider()
'A 64-bit key and an IV are required for this provider.
'Set the secret key for the DES algorithm.
[Code].....
Decryption Of Encrypted File?
Dec 22, 2010i will like to know if it will be possible to decrypt and encrypted file in vb.net or any without knowing the form of encryption..any information on how to go by it... in that if you lose the form on encryption can it be decrypted?
View 1 RepliesDeployment Of Encrypted App.config?
Apr 21, 2010I've created a console VB.Net application and encrypted the app.config file with RSAProtectedConfigurationProvider.I've used an article http:www.codeproje...eAppConfig.aspx as an example for the Encryption. It works fine in an IDE on my XP desktop.Then I deployed my application to a Windows 2003 server. The package included the app's executable along with the encrypted app.exe.config file. However, the application failed on the server with the following exception:Unhandled Exception: System.Configuration.ConfigurationerrorsException: Failed to decrypt using provider 'RsaProtectedConfigurationProvider'. Error message from the provider: The RSA key container could not be opened.I decided to encrypt app.config on the server so I copied app.config and encrypted it. The app.exe.config looked encrypted and I ran the application. However, it failed: although it didn't raise an Rsa exception as before,
[Code]...
Embed C - Data Get Encrypted?
Feb 21, 2011i 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?
View 1 RepliesHow To Access To An Encrypted PDF With ITextsharp
Mar 2, 2012I have an pdf file, encrypted with a certificate. I want to access to it in order to create a decrypted copy.I have the certificate stored at personal windows certificate store. Is it possible to use this one? How can I access with the pdfReader object?
View 1 RepliesHow To Decrypt Data That Had Already Encrypted Using MD5
Oct 23, 2011I'm using this function to encrypt data but how do I decrypt it?
Public Function GenerateHash(ByVal SourceText As String) As String
[code...]
Login With Their Encrypted Password?
Dec 14, 2009In login control ,is user can login with their encrypted password?
View 4 RepliesVS 2008 My.Settings Where Are They And Are They Encrypted
Aug 5, 2009I'm wondering with My.Settings, where abouts my program saves them, and if they are very secure or not, encrypted etc..?
View 2 RepliesDecode (Encrypted) Strings By Parts
Nov 17, 2008I have a text like :
Code:
aHR0cDovL3d3dy5kZXNpY2xpeC5jb20=AAAAAAAZGVzaWNsaXguY29t
aHR0cDovL3d3dy5zYW5kcmFjbGlja3MuY29tAAAAAAAd3d3LnNhbmRyYWNsaWNrcy5jb20v
aHR0cHM6Ly93d3cuYnV4b3V0LmNvbQ==AAAAAAAd3d3LmJ1eG91dC5jb20=
aHR0cDovL3d3dy5vc29jbGljay5jb20=AAAAAAAT3NvQ2xpY2s=
And I want.. an example... These strings are encrypted (excepting AAAAAA). I want to call Decode (string) for:
Code:
aHR0cDovL3d3dy5kZXNpY2xpeC5jb20=AAAAAAAZGVzaWNsaXguY29t
aHR0cDovL3d3dy5zYW5kcmFjbGlja3MuY29tAAAAAAAd3d3LnNhbmRyYWNsaWNrcy5jb20v
aHR0cHM6Ly93d3cuYnV4b3V0LmNvbQ==AAAAAAAd3d3LmJ1eG91dC5jb20=
aHR0cDovL3d3dy5vc29jbGljay5jb20=AAAAAAAT3NvQ2xpY2s=
And insert it into this code:
HTML Code:
:idea: [url=VALUE AFTER AAAAAA]VALUE BEFORE AAAAAA[/url]
I know that this not HTML...
Decoding Encrypted Query String?
Jan 4, 2012I 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]...
Decrypt And Verify A .Net Encrypted File?
Mar 10, 2011How can I decrypt a file encrypted in vb.net? Is there a possibility here?
View 2 RepliesGenerate Report From Encrypted Data?
May 17, 2009I 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?
View 3 RepliesHex Encrypted String And Adds It To A Listbox1?
Mar 5, 2010I 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?
Pass Encrypted Data To A Database?
Jan 24, 2011As 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.
View 1 RepliesRead A File That Is Encrypted Using PGP Netshare?
Oct 27, 2011I am using streamreader to read a file that is encrypted using PGP netshare. The file opens fine on my PC and i can read the file using Streamreader when it is unencrypted, but when i add it to an encrypted folder, I get back gibberish when the file is read. Below is a snipit of code, but i feel as though this may not be the problem.
[Code]...
Read From Encrypted Excel File?
Sep 22, 2009Working in VB in VS 2008 I'm trying to read from an Excel file using Oledb. I have no problem with it when the file is not encrypted, but the client has set a password on the working copy.
I read elsewhere that it's not possible to read an encrypted Excel file this way, but I find that hard to believe.
Sending Asymmetric Encrypted Data Over To An FTP
Sep 9, 2011I 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.
View 2 RepliesShow Encrypted Data In CrystalReporter?
May 25, 2009Before 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)
View 5 RepliesUpgrade A Site Using Encrypted Passwords?
Mar 29, 2011What's the simplest way to upgrade a VB.NET site to using encrypted passwords? Are there easy to use encryption algorithms built in to System.UI?My site is using plain text password storage, and it will soon be going to a public server at godaddy from a private one on the local network. I'm going to have to start adding in encryption algorithms to all the password parsing functions, and it would be nice if I could just set a SALT key in the web.config file and Encrypt(password) or something like that.
View 2 RepliesUse PDFsharp To Open AES 128-bit Encrypted Files?
May 6, 2009I've been receiving pdf files that I have been processing with the PDFsharp libraries. These files where 128-bit RC4 encrypted. Now I getting files that are 128-bit AES encyption.
I'm getting this exception "The PDF document is protected with an encryption not supported by PDFsharp."
Is AES just not supported, or do I need to change the method in which I open the file? [code]...
VS 02 / 03 - Encrypted String Is Not Readable By The User
Sep 7, 2010i 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 RepliesVS 2008 Encrypted Connection String
Jan 13, 2010Connection 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.
Login Form To De-code A Encrypted Password
Apr 9, 2011I am currently adding my friend's SQL Server into my Application everything works fine, apart from his password table encrypts so the login form only works when you enter the encypted password in. Is they anyway i can make the password field to de-crypt a password code.
[Code]...
Opening A Password Encrypted Access Database Using DAO?
Apr 20, 2010I create a database like this:
Sub Main()
Dim wrkDefault As Workspace
Dim dbE As DBEngine
[code].....