```curl
curl -X POST --key private.key --cert public.crt "https://minio:9000?Action=AssumeRoleWithCertificate&Version=2011-06-15&DurationSeconds=3600"
```

```xml
<?xml version="1.0" encoding="UTF-8"?>
<AssumeRoleWithCertificateResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
   <AssumeRoleWithCertificateResult>
      <Credentials>
         <AccessKeyId>YC12ZBHUVW588BQAE5BM</AccessKeyId>

			SessionToken:        tmpCredentials.SessionToken,
			ParentUser:          tmpCredentials.ParentUser,
			ParentPolicyMapping: policyName,
		},
		UpdatedAt: updatedAt,
	}))

	response := new(AssumeRoleWithCertificateResponse)
	response.Result.Credentials = tmpCredentials
	response.Metadata.RequestID = w.Header().Get(xhttp.AmzRequestID)
	writeSuccessResponseXML(w, encodeResponse(response))
}