Decrypt encrypted xml file on PPC

[Dalli]

Hello,

if I have an Xml-File on the "normal" PC, which is encrypted by the
following method:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
'Encrypt the data set and write it to file.
Dim aXmlTextWriter As Xml.XmlTextWriter

aXmlTextWriter = New XmlTextWriter("myXML.xml", Encoding.UTF8)

Dim aUE As New UnicodeEncoding()
Dim key() As Byte = aUE.GetBytes("password")
Dim RMCrypto As RijndaelManaged = New RijndaelManaged()
Dim aCryptoStream As New CryptoStream(aXmlTextWriter.BaseStream, _
RMCrypto.CreateEncryptor(key, key), CryptoStreamMode.Write)

ds.WriteXml(aCryptoStream)
aCryptoStream.Close()

'Clear the dataset so we can see that it is empty before
'we decrypt the encrypted file.
ds.Clear()
End Sub

See Source on
http://www.experts-exchange.com/Programming/Programming_Languages/Dot_Net/Q_20598364.html

how could I decrypt this file on the Pocket PC? I need to open an encrypted
xml file on PPC, it also could be encrypted with a different method. I need
to load the xml file into a dataset.

Thanks for your help

Thomas

 

[Guest]

Take a look at SDF which supports quite a few assymetrical algorithms - RSA,
MD5, SHA1 etc..

 

[Dalli]

Are there examples how to encrypt / decrypt a whole file and read it with
the xmlreader?

Thomas

 

[Guest]

Tak a look at this article in the MSDN docs:

ms-help://MS.MSDNQTR.2004JUL.1033/dnnetsec/html/cryptosimplified.htm

or online:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetsec/html/cryptosimplified.asp

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com
www.opennetcf.org
My blog: http://blog.opennetcf.org/ayakhnin

 

[Dalli]

Thanks I will take a look

Tak a look at this article in the MSDN docs:

ms-help://MS.MSDNQTR.2004JUL.1033/dnnetsec/html/cryptosimplified.htm

or online:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetsec/html/cryptosimplified.asp

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com
www.opennetcf.org
My blog: http://blog.opennetcf.org/ayakhnin