public void SaveSymmetricKey(SymmetricKey sKey)
{
var op = TableOperation.InsertOrReplace(sKey);
var cloudTable = GetTable();
var result = cloudTable.Execute(op);
}
/// <summary>
/// Creates a symmetric key. See this link for more information behind the numbers
/// http://blogs.msdn.com/b/shawnfa/archive/2006/10/09/the-differences-between-rijndael-and-aes.aspx
/// </summary>
/// <returns></returns>
private SymmetricKey CreateNewAESSymmetricKeyset()
{
if (cert == null)
{
throw new InvalidOperationException("Unable to create new AES keyset; Certificate not loaded.");
}
byte[] symmKey, iv;
using (AesManaged aes = new AesManaged())
{
aes.GenerateIV();
aes.GenerateKey();
symmKey = aes.Key;
iv = aes.IV;
aes.Clear();
}
// Encrypt the Symmetric Key for storage
byte[] encryptedKey = EncryptRSA(symmKey, cert);
SymmetricKey symmKeySet = new SymmetricKey() {
iv = iv,
Key = encryptedKey,
CertificateThumbprint = cert.Thumbprint
};
return symmKeySet;
}
public void DeleteSymmetricKey(SymmetricKey sKey)
{
var op = TableOperation.Delete(sKey);
GetTable().Execute(op);
}