final byte[] sessionHash = new byte[8];

        try {
            MessageDigest md5;
            md5 = MessageDigest.getInstance("MD5");
            md5.update(serverChallenge);
            md5.update(clientChallenge, 0, 8);
            System.arraycopy(md5.digest(), 0, sessionHash, 0, 8);
        } catch (final GeneralSecurityException gse) {
            if (LogStream.level > 0) {

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"crypto/md5"
	"encoding/hex"
	"strings"
	"testing"
)

// Wrapper for calling DeleteObject tests for both Erasure multiple disks and single node setup.
func TestDeleteObject(t *testing.T) {

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package crypto

import (
	"bytes"
	"crypto/md5"
	"encoding/base64"
	"net/http"

	xhttp "github.com/minio/minio/internal/http"
)

// RemoveSensitiveHeaders removes confidential encryption
// information - e.g. the SSE-C key - from the HTTP headers.

// It does not encrypt empty ETags because such ETags indicate
// that the S3 client hasn't sent an ETag = MD5(object) and
// the backend can pick an ETag value.
func (key ObjectKey) SealETag(etag []byte) []byte {
	if len(etag) == 0 { // don't encrypt empty ETag - only if client sent ETag = MD5(object)
		return etag
	}
	var buffer bytes.Buffer
	mac := hmac.New(sha256.New, key[:])
	mac.Write([]byte("SSE-etag"))

                        // if this IS NOT a ChecksumFailedException, it was a problem with transfer/read of the checksum
                        // file...we'll try again with the MD5 checksum.
                        try {
                            verifyChecksum(md5ChecksumObserver, destination, temp, remotePath, ".md5", wagon);

                    scriptContent =
                        """
                        set -x
                        MD5=`find . -type f | sort | xargs md5sum | md5sum | awk '{ print $1 }'`
                        echo "##teamcity[setParameter name='env.ORG_GRADLE_PROJECT_versionQualifier' value='gradleception-${'$'}MD5']"
                        """.trimIndent()
                }
                gradleWrapper {

                    .replace("\"sha1\":\\s+\"\\w+\"".toRegex(), "\"sha1\": \"\"")
                    .replace("\"sha256\":\\s+\"\\w+\"".toRegex(), "\"sha256\": \"\"")
                    .replace("\"md5\":\\s+\"\\w+\"".toRegex(), "\"md5\": \"\"")
                it.writeText(content)
            }
        }
    }

    // For local consumption by tests
    configurations.create("localLibsRepositoryElements") {

            throws GeneralSecurityException {
        final byte[] sessionHash = new byte[8];

        final MessageDigest md5 = Crypto.getMD5();

        md5.update(serverChallenge);
        md5.update(clientChallenge, 0, 8);
        System.arraycopy(md5.digest(), 0, sessionHash, 0, 8);

        final byte[] key = new byte[21];
        System.arraycopy(passwordHash, 0, key, 0, 16);

		expectedErr    string
	}{
		// Wrong MD5 hash string, returns md5um of hash
		{[]CompletePart{{ETag: "wrong-md5-hash-string"}}, "0deb8cb07527b4b2669c861cb9653607-1", ""},

		// Single CompletePart with valid MD5 hash string.
		{[]CompletePart{{ETag: "cf1f738a5924e645913c984e0fe3d708"}}, "10dc1617fbcf0bd0858048cb96e6bd77-1", ""},

		// Multiple CompletePart with valid MD5 hash string.

	"${WORK_DIR}/mc" ready minio/

	if ! ps -p ${pid} 1>&2 >/dev/null; then
		echo "server1 log:"
		cat "${WORK_DIR}/server1.log"
		echo "FAILED"
		purge "$WORK_DIR"
		exit 1
	fi

	if ! ./s3-check-md5 \
		-debug \
		-versions \
		-access-key minio \
		-secret-key minio123 \
		-endpoint "http://127.0.0.1:${start_port}/" 2>&1 | grep INTACT; then
		echo "server1 log:"
		cat "${WORK_DIR}/server1.log"
		echo "FAILED"