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.

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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


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