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#ifndef SRC_CRYPTO_CRYPTO_DH_H_
#define SRC_CRYPTO_CRYPTO_DH_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "crypto/crypto_keys.h"
#include "crypto/crypto_keygen.h"
#include "crypto/crypto_util.h"
#include "env.h"
#include "memory_tracker.h"
#include "v8.h"
#include <variant>
namespace node {
namespace crypto {
class DiffieHellman : public BaseObject {
public:
static void Initialize(Environment* env, v8::Local<v8::Object> target);
static void RegisterExternalReferences(ExternalReferenceRegistry* registry);
bool Init(int primeLength, int g);
bool Init(const char* p, int p_len, int g);
bool Init(const char* p, int p_len, const char* g, int g_len);
static void Stateless(const v8::FunctionCallbackInfo<v8::Value>& args);
protected:
static void DiffieHellmanGroup(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GenerateKeys(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetPrime(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetGenerator(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetPublicKey(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetPrivateKey(const v8::FunctionCallbackInfo<v8::Value>& args);
static void ComputeSecret(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetPublicKey(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetPrivateKey(const v8::FunctionCallbackInfo<v8::Value>& args);
static void VerifyErrorGetter(
const v8::FunctionCallbackInfo<v8::Value>& args);
DiffieHellman(Environment* env, v8::Local<v8::Object> wrap);
void MemoryInfo(MemoryTracker* tracker) const override;
SET_MEMORY_INFO_NAME(DiffieHellman)
SET_SELF_SIZE(DiffieHellman)
private:
static void GetField(const v8::FunctionCallbackInfo<v8::Value>& args,
const BIGNUM* (*get_field)(const DH*),
const char* err_if_null);
static void SetKey(const v8::FunctionCallbackInfo<v8::Value>& args,
int (*set_field)(DH*, BIGNUM*), const char* what);
bool VerifyContext();
int verifyError_;
DHPointer dh_;
};
struct DhKeyPairParams final : public MemoryRetainer {
// Diffie-Hellman can either generate keys using a fixed prime, or by first
// generating a random prime of a given size (in bits). Only one of both
// options may be specified.
std::variant<BignumPointer, int> prime;
unsigned int generator;
SET_NO_MEMORY_INFO()
SET_MEMORY_INFO_NAME(DhKeyPairParams)
SET_SELF_SIZE(DhKeyPairParams)
};
using DhKeyPairGenConfig = KeyPairGenConfig<DhKeyPairParams>;
struct DhKeyGenTraits final {
using AdditionalParameters = DhKeyPairGenConfig;
static constexpr const char* JobName = "DhKeyPairGenJob";
static EVPKeyCtxPointer Setup(DhKeyPairGenConfig* params);
static v8::Maybe<bool> AdditionalConfig(
CryptoJobMode mode,
const v8::FunctionCallbackInfo<v8::Value>& args,
unsigned int* offset,
DhKeyPairGenConfig* params);
};
using DHKeyPairGenJob = KeyGenJob<KeyPairGenTraits<DhKeyGenTraits>>;
struct DHKeyExportConfig final : public MemoryRetainer {
SET_NO_MEMORY_INFO()
SET_MEMORY_INFO_NAME(DHKeyExportConfig)
SET_SELF_SIZE(DHKeyExportConfig)
};
struct DHKeyExportTraits final {
static constexpr const char* JobName = "DHKeyExportJob";
using AdditionalParameters = DHKeyExportConfig;
static v8::Maybe<bool> AdditionalConfig(
const v8::FunctionCallbackInfo<v8::Value>& args,
unsigned int offset,
DHKeyExportConfig* config);
static WebCryptoKeyExportStatus DoExport(
std::shared_ptr<KeyObjectData> key_data,
WebCryptoKeyFormat format,
const DHKeyExportConfig& params,
ByteSource* out);
};
using DHKeyExportJob = KeyExportJob<DHKeyExportTraits>;
struct DHBitsConfig final : public MemoryRetainer {
std::shared_ptr<KeyObjectData> private_key;
std::shared_ptr<KeyObjectData> public_key;
SET_NO_MEMORY_INFO()
SET_MEMORY_INFO_NAME(DHBitsConfig)
SET_SELF_SIZE(DHBitsConfig)
};
struct DHBitsTraits final {
using AdditionalParameters = DHBitsConfig;
static constexpr const char* JobName = "DHBitsJob";
static constexpr AsyncWrap::ProviderType Provider =
AsyncWrap::PROVIDER_DERIVEBITSREQUEST;
static v8::Maybe<bool> AdditionalConfig(
CryptoJobMode mode,
const v8::FunctionCallbackInfo<v8::Value>& args,
unsigned int offset,
DHBitsConfig* params);
static bool DeriveBits(
Environment* env,
const DHBitsConfig& params,
ByteSource* out_);
static v8::Maybe<bool> EncodeOutput(
Environment* env,
const DHBitsConfig& params,
ByteSource* out,
v8::Local<v8::Value>* result);
};
using DHBitsJob = DeriveBitsJob<DHBitsTraits>;
v8::Maybe<bool> GetDhKeyDetail(
Environment* env,
std::shared_ptr<KeyObjectData> key,
v8::Local<v8::Object> target);
} // namespace crypto
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_CRYPTO_CRYPTO_DH_H_
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