Internally,building the directory may not be a big deal because all certificates for a company can be published in a central Lightweight Directory Access Protocol server,but externally this causes many problems.

• 从内部讲，建目录可能不是件大事，因为一家公司的所有证书可以由中央简化目录访问协议服务器颁发，但从外部讲，这会引起很多问题。