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Need Help with C# crypto package.
Mar 23 2009 2:00 PM
Hi
I am trying to do some initial tests on my hosting site through a sub domain I made but I keep getting this error.
[code]
Server Error in '/' Application.
The system cannot find the file specified.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details:
System.Security.Cryptography.CryptographicException: The system cannot find the file specified.
Source Error:
Line 24:
Line 25: // protect the key
Line 26: key = ProtectedData.Protect(key, null, DataProtectionScope.CurrentUser);
Line 27:
Line 28:
Source File:
e:\domains\interactivejapanese.com\wwwroot\mytest101\App_Code\generateEncryption.cs
Line:
26
Stack Trace:
[CryptographicException: The system cannot find the file specified.
]
System.Security.Cryptography.ProtectedData.Protect(Byte[] userData, Byte[] optionalEntropy, DataProtectionScope scope) +453
EncryptedPayPal_API_Credentials.generateEncryption.GenerateKey(String targetPath) in e:\domains\interactivejapanese.com\wwwroot\mytest101\App_Code\generateEncryption.cs:26
Encryptor.btn_generate_Click(Object sender, EventArgs e) in e:\domains\interactivejapanese.com\wwwroot\mytest101\Encryptor.aspx.cs:22
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565
[/code]
My code is this:
[code]
public static string GenerateKey(string targetPath)
{
// uses default encryption choosen by microsoft - currently it is Rijndael.
SymmetricAlgorithm Algorithm = SymmetricAlgorithm.Create();
// generate the key
Algorithm.GenerateKey();
// store key as bytes
byte[] key = Algorithm.Key;
// protect the key
key = ProtectedData.Protect(key, null, DataProtectionScope.CurrentUser);
// save the key in a file
using (FileStream fs = new FileStream(targetPath, FileMode.Create))
{
fs.Write(key, 0, key.Length);
}
return targetPath;
}
[/code]So I don't know how to solve this I guess I don't have permisions to use DataScope on my hosting site(not sure if they will give me permisions or what) so is there away around this or something like I really want to use DataScope because I need to protect my files.
Thanks
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