CubeFS
Copyright 2017-present The CubeFS Authors.

This product includes software devoloped at
The Apache Software Foundation (http://www.apache.org/).

CubeFS reused the code from the MinIO project to implement the
signature algorithm V2, signature algorithm V4 and policy-related
logic for S3-compatible object storage interfaces.

MinIO Cloud Storage, (C) 2014-2020 MinIO, Inc.

This product includes software developed at MinIO, Inc.
(https://min.io/).

The MinIO project contains unmodified/modified subcomponents too with
separate copyright notices and license terms. Your use of the source
code for these subcomponents is subject to the terms and conditions
of Apache License Version 2.0