xref: /third_party/node/src/crypto/crypto_hkdf.h (revision 1cb0ef41) 
1#ifndef SRC_CRYPTO_CRYPTO_HKDF_H_
2#define SRC_CRYPTO_CRYPTO_HKDF_H_
3
4#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6#include "async_wrap.h"
7#include "base_object.h"
8#include "crypto/crypto_keys.h"
9#include "crypto/crypto_util.h"
10#include "v8.h"
11
12namespace node {
13namespace crypto {
14struct HKDFConfig final : public MemoryRetainer {
15  CryptoJobMode mode;
16  size_t length;
17  const EVP_MD* digest;
18  std::shared_ptr<KeyObjectData> key;
19  ByteSource salt;
20  ByteSource info;
21
22  HKDFConfig() = default;
23
24  explicit HKDFConfig(HKDFConfig&& other) noexcept;
25
26  HKDFConfig& operator=(HKDFConfig&& other) noexcept;
27
28  void MemoryInfo(MemoryTracker* tracker) const override;
29  SET_MEMORY_INFO_NAME(HKDFConfig)
30  SET_SELF_SIZE(HKDFConfig)
31};
32
33struct HKDFTraits final {
34  using AdditionalParameters = HKDFConfig;
35  static constexpr const char* JobName = "HKDFJob";
36  static constexpr AsyncWrap::ProviderType Provider =
37      AsyncWrap::PROVIDER_DERIVEBITSREQUEST;
38
39  static v8::Maybe<bool> AdditionalConfig(
40      CryptoJobMode mode,
41      const v8::FunctionCallbackInfo<v8::Value>& args,
42      unsigned int offset,
43      HKDFConfig* params);
44
45  static bool DeriveBits(
46      Environment* env,
47      const HKDFConfig& params,
48      ByteSource* out);
49
50  static v8::Maybe<bool> EncodeOutput(
51      Environment* env,
52      const HKDFConfig& params,
53      ByteSource* out,
54      v8::Local<v8::Value>* result);
55};
56
57using HKDFJob = DeriveBitsJob<HKDFTraits>;
58
59}  // namespace crypto
60}  // namespace node
61
62#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
63#endif  // SRC_CRYPTO_CRYPTO_HKDF_H_
64