crypto/scoped_cng_types.h

   1 // Copyright 2022 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CRYPTO_SCOPED_CNG_TYPES_H_
   6 #define CRYPTO_SCOPED_CNG_TYPES_H_
   7
   8 #include <windows.h>
   9
  10 #include "base/scoped_generic.h"
  11 #include "base/win/wincrypt_shim.h"
  12
  13 namespace crypto {
  14
  15 template <typename T>
  16 struct NCryptObjectTraits {
  17   static T InvalidValue() { return 0; }
  18   static void Free(T handle) { NCryptFreeObject(handle); }
  19 };
  20
  21 using ScopedNCryptProvider =
  22     base::ScopedGeneric<NCRYPT_PROV_HANDLE,
  23                         NCryptObjectTraits<NCRYPT_PROV_HANDLE>>;
  24 using ScopedNCryptKey =
  25     base::ScopedGeneric<NCRYPT_KEY_HANDLE,
  26                         NCryptObjectTraits<NCRYPT_KEY_HANDLE>>;
  27
  28 }  // namespace crypto
  29
  30 #endif  // CRYPTO_SCOPED_CNG_TYPES_H_