Revert "crypto: make timingSafeEqual faster for Uint8Array"

This reverts commit 0f784c9 because it triggers a bug in the V8 version that Node.js 20.x uses. PR-URL: #53390 Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Marco Ippolito <[email protected]> Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Yagiz Nizipli <[email protected]> Reviewed-By: Filip Skokan <[email protected]> Reviewed-By: Rafael Gonzaga <[email protected]>
nodejs · Jun 12, 2024 · cd1415c · cd1415c
1 parent af614c5
commit cd1415c
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Showing 3 changed files with 2 additions and 52 deletions.
diff --git a/benchmark/crypto/timingSafeEqual.js b/benchmark/crypto/timingSafeEqual.js
diff --git a/src/crypto/crypto_timing.cc b/src/crypto/crypto_timing.cc
@@ -9,8 +9,6 @@
 
 namespace node {
 
-using v8::FastApiCallbackOptions;
-using v8::FastApiTypedArray;
 using v8::FunctionCallbackInfo;
 using v8::Local;
 using v8::Object;
@@ -48,32 +46,12 @@ void TimingSafeEqual(const FunctionCallbackInfo<Value>& args) {
       CRYPTO_memcmp(buf1.data(), buf2.data(), buf1.size()) == 0);
 }
 
-bool FastTimingSafeEqual(Local<Value> receiver,
-                         const FastApiTypedArray<uint8_t>& a,
-                         const FastApiTypedArray<uint8_t>& b,
-                         // NOLINTNEXTLINE(runtime/references)
-                         FastApiCallbackOptions& options) {
-  uint8_t* data_a;
-  uint8_t* data_b;
-  if (a.length() != b.length() || !a.getStorageIfAligned(&data_a) ||
-      !b.getStorageIfAligned(&data_b)) {
-    options.fallback = true;
-    return false;
-  }
-
-  return CRYPTO_memcmp(data_a, data_b, a.length()) == 0;
-}
-
-static v8::CFunction fast_equal(v8::CFunction::Make(FastTimingSafeEqual));
-
 void Initialize(Environment* env, Local<Object> target) {
-  SetFastMethodNoSideEffect(
-      env->context(), target, "timingSafeEqual", TimingSafeEqual, &fast_equal);
+  SetMethodNoSideEffect(
+      env->context(), target, "timingSafeEqual", TimingSafeEqual);
 }
 void RegisterExternalReferences(ExternalReferenceRegistry* registry) {
   registry->Register(TimingSafeEqual);
-  registry->Register(FastTimingSafeEqual);
-  registry->Register(fast_equal.GetTypeInfo());
 }
 }  // namespace Timing
 

diff --git a/src/node_external_reference.h b/src/node_external_reference.h
@@ -27,11 +27,6 @@ using CFunctionCallbackWithStrings =
     bool (*)(v8::Local<v8::Value>,
              const v8::FastOneByteString& input,
              const v8::FastOneByteString& base);
-using CFunctionCallbackWithTwoUint8ArraysFallback =
-    bool (*)(v8::Local<v8::Value>,
-             const v8::FastApiTypedArray<uint8_t>&,
-             const v8::FastApiTypedArray<uint8_t>&,
-             v8::FastApiCallbackOptions&);
 using CFunctionWithUint32 = uint32_t (*)(v8::Local<v8::Value>,
                                          const uint32_t input);
 using CFunctionWithDoubleReturnDouble = double (*)(v8::Local<v8::Value>,
@@ -56,7 +51,6 @@ class ExternalReferenceRegistry {
   V(CFunctionCallbackWithBool)                                                 \
   V(CFunctionCallbackWithString)                                               \
   V(CFunctionCallbackWithStrings)                                              \
-  V(CFunctionCallbackWithTwoUint8ArraysFallback)                               \
   V(CFunctionWithUint32)                                                       \
   V(CFunctionWithDoubleReturnDouble)                                           \
   V(CFunctionWithInt64Fallback)                                                \