// If Checksum is not encrypted, decryptChecksum will be a no-op and return
			// the already unencrypted value.
			srcChecksumDecrypted, err := srcInfo.decryptChecksum(r.Header)
			if err != nil {
				encLogOnceIf(GlobalContext,
					fmt.Errorf("Unable to decryptChecksum for object: %s/%s, error: %w", srcBucket, srcObject, err),
					"copy-object-decrypt-checksums-"+srcBucket+srcObject)
			}