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07.17.2008 at 11:00AM PDT, ID: 23574258
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9.0

How do I encrypt a password in a config file so that it may be decrypted via code on a user machine?

Asked by hi2way in .Net Editors & IDEs, .NET, Visual Studio

Tags:

I have a connection string that is built dynamically on a user's machine.  The connection string is used to open a database for which a password.  The password is constant.  I added the password to the myapp.exe.config file and encrypted it (see protection method and xml text below).

However, the user gets an error stating that "Decrypt  Failed on Provider" when the encrypted password is referenced.

Could someone help me understand how to encrypt the password on my machine in a way that it may still be referenced on a user's machine.


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Encryption method:
 
   Sub sEncryptConfig()
      Dim config As System.Configuration.Configuration = _
         ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
      Dim provider As String = _
         "DataProtectionConfigurationProvider"
 
      'Encrypt the connection strings.
      Dim connStrings As ConfigurationSection = _
         config.ConnectionStrings
      connStrings.SectionInformation.ProtectSection(provider)
      connStrings.SectionInformation.ForceSave = True
      config.Save(ConfigurationSaveMode.Full)
 
   End Sub
 
xml file - result of encryption:
 
   <appSettings configProtectionProvider="DataProtectionConfigurationProvider">
      <EncryptedData>
         <CipherData>
            <CipherValue>AQAAANCMnd8BFdERjHoAwE/Cl+sBAAAAJYioTuDPPkScPVDoNSyNxgQAAAACAAAAAAADZgAAqAAAABAAAAA6TLzeZ7DEG8HB7uFwguE6AAAAAASAAACgAAAAEAAAACjPJDjmFqDqpxwnwdJiu/XQAAAAFfsVYysjzxmdTIhcgD8xmmfMxBAdh6k/OWJacNWOq65xYVumdV7CKn++rGMigPmnvEQbGttCwB+lig+titC3gNGgUId2foV6tnQG0GDUjBpiO6vy/Lg14DeEhiLd27+8TzF2hVBpdvsHfygyC6P2DB6u4UYMHGupBt5VpQHdqKYE0GP+IKfiFa4yRCBS0b86MWGLXMSHcoC8zCw1mPzIqPPFlrCCvHZ+UazIyBdRJh212PyaFyUA9V3eFDmSCrMwgfzD5/wfV5p7UknM3cvkmRQAAACmlhk0cZzBMtxVqHhLOlYvi5WLBw==</CipherValue>
         </CipherData>
      </EncryptedData>
   </appSettings>
[+][-]07.17.2008 at 11:28AM PDT, ID: 22028513

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[+][-]07.17.2008 at 12:18PM PDT, ID: 22029066

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[+][-]07.18.2008 at 09:05AM PDT, ID: 22037244

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About this solution

Zones: .Net Editors & IDEs, .NET, Visual Studio
Tags: vb.net 2005
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Solution Provided By: graye
Participating Experts: 2
Solution Grade: A
 
 
[+][-]07.18.2008 at 03:05PM PDT, ID: 22040217

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[+][-]07.28.2008 at 07:56AM PDT, ID: 22103758

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[+][-]07.31.2008 at 01:36PM PDT, ID: 22133270

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[+][-]07.31.2008 at 02:53PM PDT, ID: 22133875

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