targetSize, _ = srcInfo.DecryptedSize()
		}

		if isTargetEncrypted {
			var encReader io.Reader
			kind, _ := crypto.IsRequested(r.Header)
			encReader, objEncKey, err = newEncryptReader(ctx, srcInfo.Reader, kind, newKeyID, newKey, dstBucket, dstObject, encMetadata, kmsCtx)
			if err != nil {
				writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
				return
			}