return
	}
	checksum, err := hash.GetContentChecksum(formValues)
	if err != nil {
		apiErr := errorCodes.ToAPIErr(ErrMalformedPOSTRequest)
		apiErr.Description = fmt.Sprintf("%s (%v)", apiErr.Description, fmt.Errorf("Invalid checksum: %w", err))
		writeErrorResponse(ctx, w, apiErr, r.URL)
		return
	}
	if checksum != nil && checksum.Type.Trailing() {

			if err != nil {
				err = msgp.WrapError(err, "SuccessorModTime")
				return
			}
		case "Checksum":
			z.Checksum, bts, err = msgp.ReadBytesBytes(bts, z.Checksum)
			if err != nil {
				err = msgp.WrapError(err, "Checksum")
				return
			}
		case "Inlined":
			z.Inlined, bts, err = msgp.ReadBoolBytes(bts)
			if err != nil {

		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 {

)

func (e ErasureAlgo) valid() bool {
	return e > invalidErasureAlgo && e < lastErasureAlgo
}

// ChecksumAlgo defines common type of different checksum algorithms
type ChecksumAlgo uint8

// List of currently supported checksum algorithms
const (
	invalidChecksumAlgo ChecksumAlgo = 0
	HighwayHash         ChecksumAlgo = 1
	lastChecksumAlgo    ChecksumAlgo = 2
)

		HTTPStatusCode: http.StatusLengthRequired,
	},
	ErrMissingContentMD5: {
		Code:           "MissingContentMD5",
		Description:    "Missing or invalid required header for this request: Content-Md5 or Amz-Content-Checksum",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrMissingSecurityHeader: {
		Code:           "MissingSecurityHeader",
		Description:    "Your request was missing a required header",

legacyJSON = `{"version":"1.0.1","format":"xl","stat":{"size":2016,"modTime":"2021-10-11T23:40:34.914361617Z"},"erasure":{"algorithm":"klauspost/reedsolomon/vandermonde","data":2,"parity":2,"blockSize":10485760,"index":2,"distribution":[2,3,4,1],"checksum":[{"name":"part.1","algorithm":"highwayhash256S"}]},"minio":{"release":"RELEASE.2019-12-30T05-45-39Z"},"meta":{"X-Minio-Internal-Server-Side-Encryption-Iv":"kInsJB/0yxyz/40ZI+lmQYJfZacDYqZsGh2wEiv+N50=","X-Minio-Internal-Server-Side-Encryption-S...