| Subject | English | Chinese Taiwan |
| comp., MS | public key infrastructure | 公開金鑰基礎結構 (The laws, policies, standards, and software that regulate or manipulate certificates and public and private keys. In practice, it is a system of digital certificates, certification authorities, and other registration authorities that verify and authenticate the validity of each party involved in an electronic transaction. Standards for PKI are still evolving, even though they are being widely implemented as a necessary element of electronic commerce) |
| comp., MS | public key infrastructure hierarchy | 公開金鑰基礎結構階層 (A hierarchy in which the roles of the certification authority are separated into one root CA and one or more subordinate CAs) |