//	   if err != nil {
//	   }
//	}
//	ETag = ETag.Format()
func (e ETag) Format() ETag {
	if !e.IsEncrypted() {
		return e
	}
	return e[len(e)-16:]
}

var _ Tagger = ETag{} // compiler check

// ETag returns the ETag itself.
//
// By providing this method ETag implements
// the Tagger interface.
func (e ETag) ETag() ETag { return e }

			if len(etag) >= 32 && strings.Count(etag, "-") != 1 {
				etag = etag[len(etag)-32:]
			}
		}
	}

	// We must not use the http.Header().Set method here because some (broken)
	// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
	// Therefore, we have to set the ETag directly as map entry.
	w.Header()[xhttp.ETag] = []string{"\"" + etag + "\""}

	// We must not use the http.Header().Set method here because some (broken)
	// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
	// Therefore, we have to set the ETag directly as map entry.
	if objInfo.ETag != "" && !delete {
		w.Header()[xhttp.ETag] = []string{`"` + objInfo.ETag + `"`}
	}

	// Set the relevant version ID as part of the response header.

	return partKey
}

// SealETag seals the etag using the object key.
// 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

			if _, ok := crypto.IsEncrypted(batch[i].UserDefined); ok {
				ETag, err := etag.Parse(batch[i].ETag)
				if err != nil {
					return err
				}
				if SSES3SinglePartObjects[i] && ETag.IsEncrypted() {
					ETag, err = etag.Decrypt(keys[0][:], ETag)
					if err != nil {
						return err
					}
					keys = keys[1:]
				}
				batch[i].ETag = ETag.Format().String()
			}
		}
		objects = objects[N:]
	}

rep_obj3_etag=$(echo "${stat_out3_rep}" | jq '.etag')
rep_obj3_size=$(echo "${stat_out3_rep}" | jq '.size')
rep_obj3_md5=$(echo "${stat_out3_rep}" | jq '.metadata."X-Amz-Server-Side-Encryption-Customer-Key-Md5"')

# Check the etag and size of replicated SSEC objects
if [ "${rep_obj1_etag}" != "${src_obj1_etag}" ]; then

// generates CopyObjectResponse from etag and lastModified time.
func generateCopyObjectResponse(etag string, lastModified time.Time) CopyObjectResponse {
	return CopyObjectResponse{
		ETag:         "\"" + etag + "\"",
		LastModified: amztime.ISO8601Format(lastModified.UTC()),
	}
}

// generates CopyObjectPartResponse from etag and lastModified time.

				PartNumber: part.PartNumber,
				GotETag:    part.ETag,
			}
			return oi, invp
		}
		expPart := currentFI.Parts[partIdx]

		// ensure that part ETag is canonicalized to strip off extraneous quotes
		part.ETag = canonicalizeETag(part.ETag)
		expETag := tryDecryptETag(objectEncryptionKey, expPart.ETag, kind == crypto.S3)
		if expETag != part.ETag {
			invp := InvalidPart{
				PartNumber: part.PartNumber,

			if kmsCtx, ok := objInfo.UserDefined[crypto.MetaContext]; ok {
				w.Header().Set(xhttp.AmzServerSideEncryptionKmsContext, kmsCtx)
			}
			if len(objInfo.ETag) >= 32 && strings.Count(objInfo.ETag, "-") != 1 {
				objInfo.ETag = objInfo.ETag[len(objInfo.ETag)-32:]
			}
		case crypto.SSEC:
			w.Header().Set(xhttp.AmzServerSideEncryptionCustomerAlgorithm, r.Header.Get(xhttp.AmzServerSideEncryptionCustomerAlgorithm))

rep_obj2_etag=$(echo "${stat_out2_rep}" | jq '.etag')
rep_obj2_size=$(echo "${stat_out2_rep}" | jq '.size')
rep_obj2_md5=$(echo "${stat_out2_rep}" | jq '.metadata."X-Amz-Server-Side-Encryption-Customer-Key-Md5"')

# Check the etag and size of replicated SSEC objects
if [ "${rep_obj1_etag}" != "${src_obj1_etag}" ]; then