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#ifndef SRC_CRYPTO_CRYPTO_HKDF_H_
#define SRC_CRYPTO_CRYPTO_HKDF_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "crypto/crypto_keys.h"
#include "crypto/crypto_util.h"
#include "allocated_buffer.h"
#include "async_wrap.h"
#include "base_object.h"
#include "v8.h"
namespace node {
namespace crypto {
static constexpr size_t kMaxDigestMultiplier = 255;
struct HKDFConfig final : public MemoryRetainer {
CryptoJobMode mode;
size_t length;
const EVP_MD* digest;
std::shared_ptr<KeyObjectData> key;
ByteSource salt;
ByteSource info;
HKDFConfig() = default;
explicit HKDFConfig(HKDFConfig&& other) noexcept;
HKDFConfig& operator=(HKDFConfig&& other) noexcept;
void MemoryInfo(MemoryTracker* tracker) const override;
SET_MEMORY_INFO_NAME(HKDFConfig)
SET_SELF_SIZE(HKDFConfig)
};
struct HKDFTraits final {
using AdditionalParameters = HKDFConfig;
static constexpr const char* JobName = "HKDFJob";
static constexpr AsyncWrap::ProviderType Provider =
AsyncWrap::PROVIDER_DERIVEBITSREQUEST;
static v8::Maybe<bool> AdditionalConfig(
CryptoJobMode mode,
const v8::FunctionCallbackInfo<v8::Value>& args,
unsigned int offset,
HKDFConfig* params);
static bool DeriveBits(
Environment* env,
const HKDFConfig& params,
ByteSource* out);
static v8::Maybe<bool> EncodeOutput(
Environment* env,
const HKDFConfig& params,
ByteSource* out,
v8::Local<v8::Value>* result);
};
using HKDFJob = DeriveBitsJob<HKDFTraits>;
} // namespace crypto
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_CRYPTO_CRYPTO_HKDF_H_
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