if opts.Versioned && fi.VersionID == "" {
		fi.VersionID = mustGetUUID()
	}
	fi.DataDir = mustGetUUID()

	if ckSum := userDefined[ReplicationSsecChecksumHeader]; ckSum != "" {
		v, err := base64.StdEncoding.DecodeString(ckSum)
		if err == nil {
			fi.Checksum = v
		}
		delete(userDefined, ReplicationSsecChecksumHeader)
	}

	// Initialize erasure metadata.
	for index := range partsMetadata {

	if _, ok := opts.ObjectAttributes[xhttp.Checksum]; ok {
		chkSums, _ := objInfo.decryptChecksums(0, r.Header)
		// AWS does not appear to append part number on this API call.
		if len(chkSums) > 0 {
			OA.Checksum = &objectAttributesChecksum{
				ChecksumCRC32:     strings.Split(chkSums["CRC32"], "-")[0],
				ChecksumCRC32C:    strings.Split(chkSums["CRC32C"], "-")[0],

		if serverSideChecksum != nil {
			fi.Checksum = serverSideChecksum.AppendTo(nil, nil)
			if opts.EncryptFn != nil {
				fi.Checksum = opts.EncryptFn("object-checksum", fi.Checksum)
			}
		}
	} else if fi.Checksum == nil && opts.WantChecksum != nil {
		// Trailing headers checksums should now be filled.
		fi.Checksum = opts.WantChecksum.AppendTo(nil, nil)
		if opts.EncryptFn != nil {

const minIOErasureUpgraded = "x-minio-internal-erasure-upgraded"

const erasureAlgorithm = "rs-vandermonde"

// GetChecksumInfo - get checksum of a part.
func (e ErasureInfo) GetChecksumInfo(partNumber int) (ckSum ChecksumInfo) {
	for _, sum := range e.Checksums {
		if sum.PartNumber == partNumber {
			// Return the checksum
			return sum
		}
	}
	return ChecksumInfo{Algorithm: DefaultBitrotAlgorithm}
}

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        writeLittleEndianInt(baos, PacSignature.KERB_CHECKSUM_HMAC_MD5);
        byte[] checksum = new byte[16];
        for (int i = 0; i < checksum.length; i++) {
            checksum[i] = (byte) i;
        }
        baos.write(checksum);
        byte[] data = baos.toByteArray();

        // Create PacSignature
        PacSignature pacSignature = new PacSignature(data);

        } catch (final IOException e) {
            throw new PACDecodingException("Malformed PAC signature", e);
        }
    }

    /**
     * Gets the checksum type of this signature.
     *
     * @return the checksum type constant
     */
    public int getType() {
        return this.type;
    }

    /**
     * Gets the checksum data.
     *
     * @return the checksum bytes
     */

  /**
   * Returns a hash function implementing the CRC-32 checksum algorithm (32 hash bits).
   *
   * <p>To get the {@code long} value equivalent to {@link Checksum#getValue()} for a {@code
   * HashCode} produced by this function, use {@link HashCode#padToLong()}.
   *
   * <p>This function is best understood as a <a
   * href="https://en.wikipedia.org/wiki/Checksum">checksum</a> rather than a true <a

		},
		{
			name:    "unknown key XAmzChecksumCRC32 is error as it does not appear in policy",
			fv:      defaultFormVals.Clone().Set(http.CanonicalHeaderKey(xhttp.AmzChecksumCRC32), "crc32-val"),
			wantErr: `Each form field that you specify in a form must appear in the list of policy conditions. "X-Amz-Checksum-Crc32" not specified in the policy.`,
		},

	return xlMeta
}

func (m *xlMetaV1Object) AddTestObjectCheckSum(partNumber int, algorithm BitrotAlgorithm, hash string) {
	checksum, err := hex.DecodeString(hash)
	if err != nil {
		panic(err)
	}
	m.Erasure.Checksums[partNumber-1] = ChecksumInfo{partNumber, algorithm, checksum}
}

// AddTestObjectPart - add a new object part in order.
func (m *xlMetaV1Object) AddTestObjectPart(partNumber int, partSize int64) {

		VersionPurgeStatus:         ri.VersionPurgeStatus,
		VersionPurgeStatusInternal: ri.VersionPurgeStatusInternal,
		DeleteMarker:               true,
		UserDefined:                map[string]string{},
		Checksum:                   ri.Checksum,
	}
}

// ReplicateObjectInfo represents object info to be replicated
type ReplicateObjectInfo struct {
	Name                       string
	Bucket                     string