It was found that the directory staging committer was the fastest among the three, S3A connector should be configured with the following parameters for optimal results:

```
cat ${HADOOP_CONF_DIR}/core-site.xml | kv-pairify | grep "s3a"

fs.s3a.access.key=minio
fs.s3a.secret.key=minio123

- `context_values`: are values like the bucket and object name and other information which should be cryptographically bound to the KEK.

To summarize for any encrypted object there exists (at least) three different keys:

- [OEK](#oek): A secret and unique key used to encrypted the object, stored in an encrypted form as part of the object metadata and only loaded to RAM in plaintext during en/decrypting the object.

        byte[] fullData = concat(messageHeader(3), data);
        InputStream in = new ByteArrayInputStream(fullData);
        SocketInputStream sis = new SocketInputStream(in);

        // Read the three data bytes
        assertEquals(1, sis.read());
        assertEquals(2, sis.read());
        assertEquals(3, sis.read());

        // After consuming all data, trying to read again will attempt to read

     */
    @Test
    public void test_serializeDeserialize_hashSet() {
        HashSet<String> original = new HashSet<>();
        original.add("one");
        original.add("two");
        original.add("three");

        byte[] serialized = serializer.fromObjectToBinary(original);
        assertNotNull(serialized, "Serialized data should not be null");

        Object deserialized = serializer.fromBinaryToObject(serialized);

import org.apache.maven.api.annotations.Nullable;

import static java.util.Objects.requireNonNull;

/**
 * A request to collect the transitive dependencies and to build a dependency graph from them. There are three ways to
 * create a dependency graph. First, only the root dependency can be given. Second, a root dependency and direct

 * host platform (like Android). In July 2018 Android had 134 trusted root certificates for its HTTP
 * clients to trust.
 *
 * For example, in order to establish a secure connection to `https://www.squareup.com/`,
 * these three certificates are used.
 *
 * ```
 * www.squareup.com certificate:
 *
 * Common Name: www.squareup.com
 * Subject Alternative Names: www.squareup.com, squareup.com, account.squareup.com...

//
//	For example: ceb8853ddc5086cc4ab9e149f8f09c88-5
//
// However, this scheme is only used for multipart objects that are
// not encrypted.
//
// # Server-side Encryption
//
// S3 specifies three types of server-side-encryption - SSE-C, SSE-S3
// and SSE-KMS - with different semantics w.r.t. ETags.
// In case of SSE-S3, the ETag of an object is computed the same as

    LinkedHashMultimap<K, V> result = create(multimap.keySet().size(), DEFAULT_VALUE_SET_CAPACITY);
    result.putAll(multimap);
    return result;
  }

  /**
   * LinkedHashMultimap entries are in no less than three coexisting linked lists: a bucket in the
   * hash table for a {@code Set<V>} associated with a key, the linked list of insertion-ordered
   * entries in that {@code Set<V>}, and the linked list of entries in the LinkedHashMultimap as a

 * whose edges have associated non-unique values.
 *
 * <p>A graph is composed of a set of nodes and a set of edges connecting pairs of nodes.
 *
 * <p>There are three primary interfaces provided to represent graphs. In order of increasing
 * complexity they are: {@link Graph}, {@link ValueGraph}, and {@link Network}. You should generally

        List<AvPair> pairs = AvPairs.decode(fullData);

        assertNotNull(pairs, "Decoded pairs should not be null");
        assertEquals(3, pairs.size(), "Should have decoded three pairs");

        // Check first pair (AvFlags)
        assertEquals(AvPair.MsvAvFlags, pairs.get(0).getType(), "First pair should be MsvAvFlags");