Hashing.md5().bits() + Hashing.md5().bits(),
        Hashing.concatenating(Hashing.md5(), Hashing.md5()).bits());
    assertEquals(
        Hashing.md5().bits() + Hashing.murmur3_32().bits(),
        Hashing.concatenating(Hashing.md5(), Hashing.murmur3_32()).bits());
    assertEquals(
        Hashing.md5().bits() + Hashing.murmur3_32().bits() + Hashing.murmur3_128().bits(),

# Check the MD5 checksums of encrypted objects from source and target
if [ "${src_obj1_md5}" != "${rep_obj1_md5}" ]; then
	echo "BUG: MD5 checksum of object 'minio2/test-bucket/encrypted' doesn't match with source. Expected: '${src_obj1_md5}', Found: '${rep_obj1_md5}'"
	exit_1
fi
if [ "${src_obj2_md5}" != "${rep_obj2_md5}" ]; then

// Reader implements the Tagger interface.
type Reader struct {
	src io.Reader

	md5      hash.Hash
	checksum ETag

	readN int64
}

// NewReader returns a new Reader that computes the
// MD5 checksum of the content read from r as ETag.
//
// If the provided etag is not nil the returned
// Reader compares the etag with the computed
// MD5 sum once the r returns io.EOF.

                "test".getBytes(StandardCharsets.UTF_8), service.select(Arrays.asList("SHA-1", "MD5")));
        assertNotNull(checksums);
        assertEquals(2, checksums.size());
        assertEquals("a94a8fe5ccb19ba61c4c0873d391e987982fbbd3", checksums.get(service.select("SHA-1")));
        assertEquals("098f6bcd4621d373cade4e832627b4f6", checksums.get(service.select("MD5")));
    }

    @Test
    void calculateByteBuffer() throws IOException {

	// ErrCustomerKeyMD5Mismatch indicates that the SSE-C key MD5 does not match the
	// computed MD5 sum. This means that the client provided either the wrong key for
	// a certain MD5 checksum or the wrong MD5 for a certain key.
	ErrCustomerKeyMD5Mismatch = Errorf("The provided SSE-C key MD5 does not match the computed MD5 of the SSE-C key")

			CalculatedSHA256: "",
		}
	}

	// Merge the size, MD5 and SHA256 values if src is a Reader.
	// The size may be set to -1 by callers if unknown.
	if r, ok := src.(*Reader); ok {
		if r.bytesRead > 0 {
			return nil, errors.New("hash: already read from hash reader")
		}
		if len(r.checksum) != 0 && len(MD5) != 0 && !etag.Equal(r.checksum, MD5) {
			return nil, BadDigest{
				ExpectedMD5:   r.checksum.String(),

    mac.init(MD5_KEY);
    mac.update(input.getBytes(UTF_8));
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal()).toString());
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal(input.getBytes(UTF_8))).toString());
    assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).hashString(input, UTF_8).toString());
    assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).hashBytes(input.getBytes(UTF_8)).toString());

./mc mb site1/testbucket/
./mc cp -r --quiet /usr/bin site1/testbucket/

sleep 5

s3-check-md5 -h

failed_count_site1=$(s3-check-md5 -versions -access-key minioadmin -secret-key minioadmin -endpoint http://site1-nginx:9001 -bucket testbucket 2>&1 | grep FAILED | wc -l)
failed_count_site2=$(s3-check-md5 -versions -access-key minioadmin -secret-key minioadmin -endpoint http://site2-nginx:9002 -bucket testbucket 2>&1 | grep FAILED | wc -l)

sleep 10

echo "Verifying ETag for all objects"
s3-check-md5 -versions -access-key minio -secret-key minio123 -endpoint http://127.0.0.1:9001/ -bucket bucket
s3-check-md5 -versions -access-key minio -secret-key minio123 -endpoint http://127.0.0.1:9002/ -bucket bucket
s3-check-md5 -versions -access-key minio -secret-key minio123 -endpoint http://127.0.0.1:9003/ -bucket bucket

			err:        ioutil.ErrOverread,
		},
		{
			desc:       "Correct MD5, nested",
			src:        mustReader(t, bytes.NewReader([]byte("abcd")), 4, "", "", 4),
			size:       4,
			actualSize: 4,
			md5hex:     "e2fc714c4727ee9395f324cd2e7f331f",
		},
		{
			desc:       "Correct MD5, truncated",
			src:        bytes.NewReader([]byte("abcd-morethan-4-bytes")),
			size:       4,