You sent a request containing signature information in the Authorization header, URL parameter X-Tos-Credential, or form element x-tos-credential, but the Request value in the signature credential information is not request.

GET /objectName HTTP/1.1​
Host: <Bucket name>.<TOS endpoint>​
Date: GMT Date​
x-tos-content-sha256: abc***​
x-tos-date: 2022***​
Authorization: TOS4-HMAC-SHA256 Credential=testAK/20220322/cn-beijing/tos/aa,SignedHeaders=host;x-tos-content-sha256;x-tos-date,Signature=d40b66cf0054d1642843670d10fa095e1609c7896f25df217770b0abe717693b​

The credential information in the signature above is Credential=testAK/20220322/cn-beijing/tos/aa, where Request is aa instead of request.

Solution

Calculate the signature using the correct method. For detailed operations, refer to the Signature Mechanism.

Last updated: 2026.07.27 18:49:56

Public security network record in Beijing: No. 11010802032137