func (c ChecksumInfo) MarshalJSON() ([]byte, error) {
	info := checksumInfoJSON{
		Name:      fmt.Sprintf("part.%d", c.PartNumber),
		Algorithm: c.Algorithm.String(),
		Hash:      hex.EncodeToString(c.Hash),
	}
	return json.Marshal(info)
}

// UnmarshalJSON - custom checksum info unmarshaller
func (c *ChecksumInfo) UnmarshalJSON(data []byte) error {
	var info checksumInfoJSON

        switch (form.crudMode) {
        case CrudMode.CREATE:
            return OptionalEntity.of(new Role()).map(entity -> {
                entity.setId(Base64.getUrlEncoder().encodeToString(form.name.getBytes(Constants.CHARSET_UTF_8)));
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {

			if len(meta.TaggingConfigXML) > 0 {
				tagCfgStr := base64.StdEncoding.EncodeToString(meta.TaggingConfigXML)
				bms.Tags = &tagCfgStr
				bms.TagConfigUpdatedAt = meta.TaggingConfigUpdatedAt
			}

			if len(meta.VersioningConfigXML) > 0 {
				versioningCfgStr := base64.StdEncoding.EncodeToString(meta.VersioningConfigXML)
				bms.Versioning = &versioningCfgStr

        }

        // Total message length is 154 bytes
        byte[] finalMessage = new byte[154];
        System.arraycopy(message, 0, finalMessage, 0, 154);

        return Base64.getEncoder().encodeToString(finalMessage);
    }

    @BeforeEach
    public void setUp() throws UnknownHostException {
        ntlmSsp = new NtlmSsp();

				t.Errorf("error case %d: expected no error, got: %v", i+1, err)
			}
		} else if err == nil {
			t.Errorf("error case %d: expected error got: %v", i+1, err)
		}
		if err == nil {
			if hex.EncodeToString(sha256Sum) != testCase.expectedSha256hex {
				t.Errorf("case %d: result: expected: %v, got: %x", i+1, testCase.expectedSha256hex, sha256Sum)
			}
			if !testCase.expectedResult.Equal(result) {

        switch (form.crudMode) {
        case CrudMode.CREATE:
            return OptionalEntity.of(new User()).map(entity -> {
                entity.setId(Base64.getUrlEncoder().encodeToString(form.name.getBytes(Constants.CHARSET_UTF_8)));
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {

     */
    public String encryptToString(char[] plaintext) throws GeneralSecurityException {
        byte[] encrypted = encryptCredentials(plaintext);
        return Base64.getEncoder().encodeToString(encrypted);
    }

    /**
     * Decrypt credentials from a base64 string
     *
     * @param encryptedString base64 encoded encrypted credentials
     * @return decrypted credentials

		if err != nil {
			logger.CriticalIf(GlobalContext, err)
		}
		sum256 := sha256.Sum256(payload)
		r.Body = io.NopCloser(bytes.NewReader(payload))
		return hex.EncodeToString(sum256[:])
	}

	var (
		defaultSha256Cksum string
		v                  []string
		ok                 bool
	)

	// For a presigned request we look at the query param for sha256.

	}
	uploadID := res.UploadID

	// Upload part1.
	fiveMBBytes := bytes.Repeat([]byte("a"), 5*humanize.MiByte)
	md5Writer := md5.New()
	md5Writer.Write(fiveMBBytes)
	etag1 := hex.EncodeToString(md5Writer.Sum(nil))
	sha256sum := ""
	_, err = obj.PutObjectPart(context.Background(), bucket, object, uploadID, 1, mustGetPutObjReader(t, bytes.NewReader(fiveMBBytes), int64(len(fiveMBBytes)), etag1, sha256sum), opts)

        switch (form.crudMode) {
        case CrudMode.CREATE:
            return OptionalEntity.of(new Group()).map(entity -> {
                entity.setId(Base64.getUrlEncoder().encodeToString(form.name.getBytes(Constants.CHARSET_UTF_8)));
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {