動態憑證是什麼意思？

Question

我知道什麼憑據是

A credential is an attestation of qualification, competence, or authority issued to an individual by a third party with a relevant or de facto authority or assumed competence to do so. 

Examples of credentials include academic diplomas, academic degrees, certifications, security clearances, identification documents, badges, passwords, user names, keys, powers of attorney, and so on. 

但什麼是動態憑證的手段????

Answer 1

很難說完全沒有上下文，但很可能它意味着像「PIN令牌」或文本消息PIN系統，你可以通過安全的帶外請求獲得新的PIN或其他種類的令牌頻道（如您的手機），然後授權您訪問系統。