Invaild Signature

上传ios程序到appstore的过程经常会因为某些步骤未遵守，导致Invaild Signature的情况，下面对证书新建步骤做下总结，方便自己后续查看。

第一步：

下载：Worldwide Developer Relations Certificate Authority

Intermediate Certificates

To use your certificates, you must have the intermediate signing certificate in your system keychain. This is automatically installed by Xcode. However, if you need to reinstall the intermediate signing certificate click the link below:

• Worldwide Developer Relations Certificate Authority

第二步：

从证书颁发机构请求证书。

Creating a Certificate Signing Request (CSR)

第三步：

Generate your certificate.

Upload CSR file.

Select .certSigningRequest file saved on your Mac.

第四步：

Add iOS Provisioning Profile