S3Express: Amazon S3 Command Line Utility

Amazon S3 command line utility for Windows. Copy, query, backup multiple files to S3 using the Windows command line.

S3Express FAQ and Knowledge Base

Main Page > Browse Categories > Known Errors with Solutions > InvalidRequest - The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.

InvalidRequest - The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.

Error

When accessing Amazon S3 buckets that are located in the new AWS Germany (Frankfurt) region, S3Express reports the error "400 - InvalidRequest - The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256."

Solution

The new AWS signature version 4 is required to access buckets in the new AWS Germany (Frankfurt) region. Please upgrade S3Express to version 1.5.5 or newer. Upgrading is free if you already purchased a license for S3Express version 1, see : www.s3express.com/kb/item29.htm



User Comments
Add Comment
There are no user comments for this topic.
Add Comment
Attachments
No attachments

Did this help you?
Yes No

Statistics
49% found this information useful

Other Options
Printable Version

Download
Download S3Express

S3Express Manual
 HTML   PDF

 A printable version of the entire FAQ and Knowledge Base is also available.
 For further queries, please contact us by e-mail at support@s3express.com