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#ifndef SRC_CRYPTO_CRYPTO_SCRYPT_H_ |
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#define SRC_CRYPTO_CRYPTO_SCRYPT_H_ |
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS |
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#include "crypto/crypto_util.h" |
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#include "env.h" |
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#include "memory_tracker.h" |
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#include "v8.h" |
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namespace node { |
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namespace crypto { |
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#ifndef OPENSSL_NO_SCRYPT |
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// Scrypt is a password-based key derivation algorithm |
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// defined in https://tools.ietf.org/html/rfc7914 |
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// It takes as input a password, a salt value, and a |
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// handful of additional parameters that control the |
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// cost of the operation. In this case, the higher |
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// the cost, the better the result. The length parameter |
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// defines the number of bytes that are generated. |
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// The salt must be as random as possible and should be |
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// at least 16 bytes in length. |
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struct ScryptConfig final : public MemoryRetainer { |
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CryptoJobMode mode; |
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ByteSource pass; |
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ByteSource salt; |
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uint32_t N; |
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uint32_t r; |
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uint32_t p; |
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uint64_t maxmem; |
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int32_t length; |
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ScryptConfig() = default; |
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explicit ScryptConfig(ScryptConfig&& other) noexcept; |
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ScryptConfig& operator=(ScryptConfig&& other) noexcept; |
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void MemoryInfo(MemoryTracker* tracker) const override; |
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SET_MEMORY_INFO_NAME(ScryptConfig) |
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SET_SELF_SIZE(ScryptConfig) |
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}; |
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struct ScryptTraits final { |
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using AdditionalParameters = ScryptConfig; |
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static constexpr const char* JobName = "ScryptJob"; |
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static constexpr AsyncWrap::ProviderType Provider = |
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AsyncWrap::PROVIDER_SCRYPTREQUEST; |
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static v8::Maybe<bool> AdditionalConfig( |
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CryptoJobMode mode, |
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const v8::FunctionCallbackInfo<v8::Value>& args, |
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unsigned int offset, |
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ScryptConfig* params); |
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static bool DeriveBits( |
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Environment* env, |
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const ScryptConfig& params, |
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ByteSource* out); |
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static v8::Maybe<bool> EncodeOutput( |
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Environment* env, |
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const ScryptConfig& params, |
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ByteSource* out, |
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v8::Local<v8::Value>* result); |
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}; |
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using ScryptJob = DeriveBitsJob<ScryptTraits>; |
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#else |
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// If there is no Scrypt support, ScryptJob becomes a non-op |
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struct ScryptJob { |
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static void Initialize( |
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Environment* env, |
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v8::Local<v8::Object> target) {} |
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}; |
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#endif // !OPENSSL_NO_SCRYPT |
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} // namespace crypto |
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} // namespace node |
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#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS |
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#endif // SRC_CRYPTO_CRYPTO_SCRYPT_H_ |