testCases := []struct {
		bucketName string
		accessKey  string
		secretKey  string
		// expected Response.
		expectedRespStatus int
	}{
		// Test case - 1.
		// Bucket exists.
		{
			bucketName:         bucketName,
			accessKey:          credentials.AccessKey,
			secretKey:          credentials.SecretKey,
			expectedRespStatus: http.StatusOK,
		},
		// Test case - 2.

			secretKey:          credentials.SecretKey,
			expectedRespStatus: http.StatusNotFound,
		},
		// Test case - 3.
		// Test case to induce a signature mismatch.
		// Using invalid accessID.
		{
			bucketName:         bucketName,
			objectName:         objectName,
			accessKey:          "Invalid-AccessID",
			secretKey:          credentials.SecretKey,

	// Create new HTTP request with incorrect secretKey to generate an incorrect signature.
	secretKey := s.secretKey + "a"
	request, err = newTestSignedRequest(http.MethodPut, getPutObjectURL(s.endPoint, bucketName, objName), 0, nil, s.accessKey, secretKey, s.signer)
	c.Assert(err, nil)
	response, err = s.client.Do(request)
	c.Assert(err, nil)

		signature string
		errCode   APIErrorCode
	}{
		{"invalidAccessKey", policy, calculateSignatureV2(policy, creds.SecretKey), ErrInvalidAccessKeyID},
		{creds.AccessKey, policy, calculateSignatureV2("random", creds.SecretKey), ErrSignatureDoesNotMatch},
		{creds.AccessKey, policy, calculateSignatureV2(policy, creds.SecretKey), ErrNone},
	}
	for i, test := range testCases {
		formValues := make(http.Header)

		bucketName string
		accessKey  string
		secretKey  string
		// Sent body
		body []byte
		// Expected response
		expectedRespStatus int
		lifecycleResponse  []byte
		errorResponse      APIErrorResponse
		shouldPass         bool
	}{
		// GET empty credentials
		{
			method: http.MethodGet, bucketName: bucketName,
			accessKey:          "",
			secretKey:          "",
			expectedRespStatus: http.StatusForbidden,

	return nil
}

// Sign given request using Signature V2.
func signRequestV2(req *http.Request, accessKey, secretKey string) error {
	signer.SignV2(*req, accessKey, secretKey, false)
	return nil
}

// Sign given request using Signature V4.
func signRequestV4(req *http.Request, accessKey, secretKey string) error {
	// Get hashed payload.
	hashedPayload := req.Header.Get("x-amz-content-sha256")
	if hashedPayload == "" {

					AccessKey:    cred.AccessKey,
					SecretKey:    cred.SecretKey,
					SessionToken: cred.SessionToken,
					ParentUser:   cred.ParentUser,
				},
				UpdatedAt: updatedAt,
			}))

			mcreds = credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken)
		} else {
			mcreds = credentials.NewStaticV4(sa.Credentials.AccessKey, sa.Credentials.SecretKey, "")
		}

    /**
     * Derive encryption key from password using PBKDF2
     */
    private SecretKey deriveKey(char[] password, byte[] salt) throws GeneralSecurityException {
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(KEY_DERIVATION_ALGORITHM);
        KeySpec keySpec = new PBEKeySpec(password, salt, PBKDF2_ITERATIONS, KEY_SIZE);
        SecretKey tempKey = keyFactory.generateSecret(keySpec);

		Credentials: madmin.Credentials{
			AccessKey:  newCred.AccessKey,
			SecretKey:  newCred.SecretKey,
			Expiration: newCred.Expiration,
		},
	}

	data, err := json.Marshal(createResp)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	encryptedData, err := madmin.EncryptData(cred.SecretKey, data)
	if err != nil {

	testCasesV2 := []struct {
		expectedStatus int
		secretKey      string
		formData       map[string]string
	}{
		{http.StatusForbidden, credentials.SecretKey, map[string]string{"AWSAccessKeyId": "invalidaccesskey"}},
		{http.StatusForbidden, "invalidsecretkey", map[string]string{"AWSAccessKeyId": credentials.AccessKey}},
		{http.StatusNoContent, credentials.SecretKey, map[string]string{"AWSAccessKeyId": credentials.AccessKey}},