private static TrialData CheckRegistryData(String regBranch, String regKey, String regParam, String keyFileName)
{
object obj;
using (var rk = Registry.CurrentUser.CreateSubKey(String.Format("{0}{1}{2}",
regBranch,
regBranch.EndsWith("\\", StringComparison.Ordinal) ? String.Empty : "\\",
regKey)))
{
obj = rk.GetValue(regParam);
}
if (obj == null)
{
return new TrialData(DateTime.Now)
{
LastStart = DateTime.Now
}
}
;
byte[] encryptedObject = obj as byte[];
if (encryptedObject == null)
{
throw new CryptographicException("Unexpected data type");
}
return((TrialData)ClmEncryptor.DecryptObject(keyFileName, encryptedObject));
}
private static void SaveToFile(TrialData data, String fileName, String keyFileName)
{
var encryptedObject = ClmEncryptor.EncryptObject(keyFileName, data);
using (var f = File.Open(fileName, FileMode.Create, FileAccess.Write))
{
f.Write(encryptedObject, 0, encryptedObject.Length);
}
}
private static void SaveToRegistry(TrialData data, String regBranch, String regKey, String regParam, String keyFileName)
{
byte[] encryptedObject = ClmEncryptor.EncryptObject(keyFileName, data);
using (var rk = Registry.CurrentUser.CreateSubKey(String.Format("{0}{1}{2}",
regBranch,
regBranch.EndsWith("\\", StringComparison.Ordinal) ? String.Empty : "\\",
regKey)))
{
rk.SetValue(regParam, encryptedObject, RegistryValueKind.Binary);
}
}
private static TrialData CheckFileData(String fileName, String keyFileName)
{
if (!File.Exists(fileName))
{
return new TrialData(DateTime.Now)
{
LastStart = DateTime.Now
}
}
;
byte[] buffer = new byte[1024];
using (MemoryStream mstr = new MemoryStream())
{
using (var f = File.Open(fileName, FileMode.Open, FileAccess.Read))
{
int n;
while ((n = f.Read(buffer, 0, buffer.Length)) > 0)
{
mstr.Write(buffer, 0, n);
}
}
return((TrialData)ClmEncryptor.DecryptObject(keyFileName, mstr.ToArray()));
}
}