fixup! crypto: use EVP_MD_fetch and cache EVP_MD for hashes

src/crypto/crypto_hash.cc

@@ -98,19 +98,22 @@ void Hash::New(const FunctionCallbackInfo<Value>& args) {
     std::string hash_type_str = hash_type.ToString();
     auto it = env->evp_md_cache.find(hash_type_str);
     if (it == env->evp_md_cache.end()) {
-      EVP_MD* maybe_md = EVP_MD_fetch(nullptr, hash_type_str.c_str(), nullptr);
-      if (maybe_md == nullptr) {
-        return ThrowCryptoError(
-            env, ERR_get_error(), "Digest method not supported");
+      EVP_MD* explicit_md = EVP_MD_fetch(nullptr, hash_type_str.c_str(), nullptr);
+      if (explicit_md != nullptr) {
+        md = explicit_md;
+        env->evp_md_cache.emplace(hash_type_str, explicit_md);
+      } else {
+        // We'll do a fallback.
+        ERR_clear_error();
       }
-      md = maybe_md;
-      env->evp_md_cache.emplace(hash_type_str, maybe_md);
     } else {
       md = it->second.get();
     }
-#else
-    md = EVP_get_digestbyname(*hash_type);
 #endif  // OPENSSL_VERSION_MAJOR >= 3
+    // EVP_MD_fetch failed, fallback to EVP_get_digestbyname.
+    if (md == nullptr) {
+      md = EVP_get_digestbyname(*hash_type);
+    }
   }
 
   Maybe<unsigned int> xof_md_len = Nothing<unsigned int>();