credentialScope 的终止字符串(tc3_request)是随便填的吗?,
AuthFailure.SignatureFailure这个错误如何着手去排错?
"{\"Response\":{\"Error\":{\"Code\":\"AuthFailure.SignatureFailure\",\"Message\":\"The provided credentials could not be validated. Please check your signature is correct.\"},\"RequestId\":\"8313bcb1-0a3d-4027-a12b-75ba3a46300e\"}}"
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