Object Storage Service:0002-00000062

Problem description

The signature format is invalid.

Causes

The signature format in the Authorization header is invalid.

Examples

You initiated a request to include the signature in the Authorization header, but the format of the Authorization header is invalid. For example, the colon (:) used to separate the AccessKey ID and the signature is missing in the Authorization header.

GET /test.txt HTTP/1.0
Date: Tue, 20 Dec 2022 08:48:18 GMT
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Authorization: OSS qn6q**************:77Dv****************

Solutions

The following code provides an example on how to calculate the value of the Authorization header:

Authorization = "OSS " + AccessKeyId + ":" + Signature
Signature = base64(hmac-sha1(AccessKeySecret,
            VERB + "\n"
            + Content-MD5 + "\n" 
            + Content-Type + "\n" 
            + Date + "\n" 
            + CanonicalizedOSSHeaders
            + CanonicalizedResource))

For more information about how to calculate the Authorization header, see Include signatures in the Authorization header.