// FIXME [DataProtectionPermission (SecurityAction.Demand, UnprotectData = true)]
public static byte[] Unprotect(byte[] encryptedData, byte[] optionalEntropy, DataProtectionScope scope)
{
if (encryptedData == null)
{
throw new ArgumentNullException("encryptedData");
}
// on Windows this is supported only under 2000 and later OS
Check(scope);
switch (impl)
{
case DataProtectionImplementation.ManagedProtection:
try {
return(ManagedProtection.Unprotect(encryptedData, optionalEntropy, scope));
}
catch (Exception e) {
string msg = Locale.GetText("Data unprotection failed.");
throw new CryptographicException(msg, e);
}
case DataProtectionImplementation.Win32CryptoProtect:
try {
return(NativeDapiProtection.Unprotect(encryptedData, optionalEntropy, scope));
}
catch (Exception e) {
string msg = Locale.GetText("Data unprotection failed.");
throw new CryptographicException(msg, e);
}
default:
throw new PlatformNotSupportedException();
}
}
// FIXME [DataProtectionPermission (SecurityAction.Demand, UnprotectData = true)]
public static byte[] Unprotect(byte[] encryptedData, byte[] optionalEntropy, DataProtectionScope scope)
{
if (encryptedData == null)
{
throw new ArgumentNullException("encryptedData");
}
// on Windows this is supported by CoreFX implementation
Check(scope);
switch (impl)
{
#if !MOBILE
case DataProtectionImplementation.ManagedProtection:
try {
return(ManagedProtection.Unprotect(encryptedData, optionalEntropy, scope));
}
catch (Exception e) {
string msg = Locale.GetText("Data unprotection failed.");
throw new CryptographicException(msg, e);
}
#endif
default:
throw new PlatformNotSupportedException();
}
}
/// <summary>
/// Unprotects data using local user account
/// </summary>
/// <param name="data">Data to unprotect</param>
/// <returns>Unprotected data</returns>
public static byte[] Unprotect(byte[] data, byte[] optionalEntropy = null, DataProtectionScope scope = DataProtectionScope.CurrentUser)
{
if (CryptoUtility.IsWindows)
{
return(CryptOperationWindows(false, data, optionalEntropy, scope));
}
else
{
return(ManagedProtection.Unprotect(data, optionalEntropy, scope));
}
}
private byte[] Unprotect(byte[] protectedData)
{
// ProtectedData throws UnsupportedPlatform exception, utilizing ManagedProtection directly from Mono
return(ManagedProtection.Unprotect(protectedData, this._additionalEntropy, DataProtectionScope.CurrentUser));
}
protected override byte [] Unprotect(byte [] data)
=> ManagedProtection.Unprotect(
data,
null,
DataProtectionScope.CurrentUser);
