return
		}
		copy(objectEncryptionKey[:], key)

		var nonce [12]byte
		tmp := sha256.Sum256(fmt.Append(nil, uploadID, partID))
		copy(nonce[:], tmp[:12])

		partEncryptionKey := objectEncryptionKey.DerivePartKey(uint32(partID))
		encReader, err := sio.EncryptReader(reader, sio.Config{
			Key:   partEncryptionKey[:],
			Nonce: &nonce,
		})
		if err != nil {

			return nil, err
		}

		// if object doesn't exist and not a replication request return error for If-Match conditional requests
		// If-None-Match should be allowed to proceed for non-existent objects
		if err != nil && !opts.ReplicationRequest && opts.HasIfMatch && (isErrObjectNotFound(err) || isErrVersionNotFound(err)) {
			return nil, err
		}
	}

			return objInfo, err
		}

		// if object doesn't exist and not a replication request return error for If-Match conditional requests
		// If-None-Match should be allowed to proceed for non-existent objects
		if err != nil && !opts.ReplicationRequest && opts.HasIfMatch && (isErrObjectNotFound(err) || isErrVersionNotFound(err)) {
			return objInfo, err
		}
	}