But it also has drawbacks, including the performance overhead of asymmetric encryption and the management headaches of obtaining and maintaining certificates for each client.
但是它也有缺点，包括不对称加密的性能开销和每个客户端获取和维护证书的繁琐管理。
2
The certificate-based authentication approach avoids the password management issue, but exchanges it for the issue of managing client-side certificates.
基于证书的认证方法避免了密码管理问题，但是也带来了管理客户端证书问题。
3
Other complaints include poor property management services, contract violations and instances where the release of property ownership certificates have been postponed.