I encrypt an XML file and save it to the original file.
I then open the file and try to decrypt it, and get the error "Padding is invalid and cannot be removed".
I think this is because during encryption, I execute [code]key = New RijndaelManaged()[/code] And, during decryption, I also execute [code]key = New RijndaelManaged()[/code] How can I save the key from the encryption ?
Thank you.

This is the code to encrypt and save the XML file: [code]Imports System.Xml Imports System.Security.Cryptography Imports System.Security.Cryptography.Xml Dim key As RijndaelManaged = Nothing ' Create a new Rijndael key. key = New RijndaelManaged() ' Load an XML document. Dim xmlDoc As New XmlDocument() xmlDoc.PreserveWhitespace = True xmlDoc.Load("myXMLFile.XML") Encrypt(xmlDoc, "myElement1", key) Encrypt(xmlDoc, "myElement2", key) xmlDoc.Save("myXMLFile.XML")[/code] This is the code to decrypt the XML file: [code]Imports System.Xml Imports System.Security.Cryptography Imports System.Security.Cryptography.Xml Dim key As RijndaelManaged = Nothing key = New RijndaelManaged() Dim xmlDoc As New XmlDocument() xmlDoc.PreserveWhitespace = True xmlDoc.Load("myXMLFile.XML") Decrypt(xmlDoc, key)[/code] Small Bio