internal static void AutoGenKeys()
{
#if TARGET_J2EE
{
#else
try {
if (autogenerated == null)
{
autogenerated = MachineKeyRegistryStorage.Retrieve(
MachineKeyRegistryStorage.KeyType.Validation);
}
if (autogenerated_decrypt == null)
{
autogenerated_decrypt = MachineKeyRegistryStorage.Retrieve(
MachineKeyRegistryStorage.KeyType.Encryption);
}
} catch (Exception) {
#endif
// Fall back to old method
RandomNumberGenerator rng = RandomNumberGenerator.Create();
if (autogenerated == null)
{
autogenerated = new byte [64];
rng.GetBytes(autogenerated);
}
if (autogenerated_decrypt == null)
{
autogenerated_decrypt = new byte [64];
rng.GetBytes(autogenerated_decrypt);
}
}
}
byte[] AutoGenerate(MachineKeyRegistryStorage.KeyType type)
{
byte[] key = null;
try {
key = MachineKeyRegistryStorage.Retrieve(type);
// ensure the stored key is usable with the selection algorithm
if (type == MachineKeyRegistryStorage.KeyType.Encryption)
{
DecryptionTemplate.Key = key;
}
else if (type == MachineKeyRegistryStorage.KeyType.Validation)
{
ValidationTemplate.Key = key;
}
} catch (Exception) {
key = null;
}
// some algorithms have special needs for key (e.g. length, parity, weak keys...)
// so we better ask them to provide a default key (than to generate/use bad ones)
if (key == null)
{
if (type == MachineKeyRegistryStorage.KeyType.Encryption)
{
key = DecryptionTemplate.Key;
}
else if (type == MachineKeyRegistryStorage.KeyType.Validation)
{
key = ValidationTemplate.Key;
}
MachineKeyRegistryStorage.Store(key, type);
}
return(key);
}