entity authentication in a sentence

• It has an entity authentication mechanism, based on the X . 509 system; a key setup phase, where a symmetric encryption key is formed by employing public-key cryptography; and an application-level data transport function.
• "' Transaction authentication "'generally refers to the Internet-based security method of securely identifying a user through two-factor authentication or augmented with data that provides uniqueness and timeliness through a combination of message authentication and entity authentication.
• It's difficult to see entity authentication in a sentence .