Problem description
OSS only accepts requests authenticated with Signature Version 4 in the request header.
Cause
Your request uses a signature version other than Signature Version 4. OSS only accepts Signature Version 4 for authentication in the request header.
Example problems
A REST API request was sent with a non-V4 signature in the URL or a header.
Solution
Signature Version 4 authentication is supported only in CloudBox scenarios. For more information, see Create an OSS on CloudBox bucket.
Note
Other scenarios support signature versions earlier than V4.
If the issue persists, contact Technical Support.
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