Upgrading to Visual Studio 2008. Bad Data

[vivekagarwal]

Hi,

I am in process of upgrading to Visual Studio 2008 from 2003. Most of the upgrade is easy except this one issue:

When application is trying to Decrypt encrypted data from database, it is throwing following error. This code works fine with Visual Studio 2003. Can someone help me with this and tell me cause of the problem and how to fix this?

System.Security.Cryptography.CryptographicExceptio n occurred
Message="Bad Data. "
Source="mscorlib"
StackTrace:
at System.Security.Cryptography.CryptographicExceptio n.ThrowCryptogaphicException(Int32 hr)
at System.Security.Cryptography.Utils._DecryptData(Sa feKeyHandle hKey, Byte[] data, Int32 ib, Int32 cb, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode PaddingMode, Boolean fDone)
at System.Security.Cryptography.CryptoAPITransform.Tr ansformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount)
at System.Security.Cryptography.CryptoStream.FlushFin alBlock()
at PGAS.Util.Encryption.Transform(String vstrString, ICryptoTransform vobjCryptoTransform) in C:\Releases\PGAS 8.0.0\3M UI\3MUtil\Util_UIMT\Encryption.vb:line 129
InnerException:

Thanks,
Vivek Agarwal

[Frinavale]

Try re-referencing the Cryptography that you're using.
If that doesn't work, consider using different cryptography than you are.

[vivekagarwal]

I tried re-referencing the object but that doesn't help. What other type of cryptography can I use?

[Frinavale]

On second thought, I'm not sure if switching help you since your database data is already encrypted....


I think I know what's happened. I think that was previously being used has been changed with the update.

At this time I don't know how to fix this.

Maybe try something like:

• back up your database
• load the Visual Studio 2003 and connect to the backup database
• decrypt the data
• open the Visual Studio 2008 project
• connect to the decrypted backup database
• re-encrypt it

-Frinny