internal static unsafe extern NTSTATUS BCryptSecretAgreement(SafeBCryptKeyHandle hPrivKey, SafeBCryptKeyHandle hPubKey, out SafeBCryptSecretHandle phSecret, int dwFlags);
internal static unsafe extern NTSTATUS BCryptDeriveKey(SafeBCryptSecretHandle hSharedSecret, string pwszKDF, void *pParameterList, IntPtr pbDerivedKey, int cbDerivedKey, out int pcbResult, int dwFlags);
