website/content/zh-cn/docs/reference/glossary/certificate.md

---
title: 证书（Certificate）
id: certificate
date: 2018-04-12
full_link: /zh-cn/docs/tasks/tls/managing-tls-in-a-cluster/
short_description: >
  证书是个安全加密文件，用来确认对 Kubernetes 集群访问的合法性。

aka: 
tags:
- security
---
<!--
title: Certificate
id: certificate
date: 2018-04-12
full_link: /docs/tasks/tls/managing-tls-in-a-cluster/
short_description: >
  A cryptographically secure file used to validate access to the Kubernetes cluster.

aka: 
tags:
- security
-->

<!--
 A cryptographically secure file used to validate access to the Kubernetes cluster.
-->
证书是个安全加密文件（cryptographically secure file），用来确认对 Kubernetes 集群访问的合法性。

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<!--
Certificates enable applications within a Kubernetes cluster to access the Kubernetes API securely. Certificates validate that clients are allowed to access the API.
-->
证书（Certificate）可以让 Kubernetes 集群中运行的应用程序安全的访问 Kubernetes API。证书可以确认客户端是否被允许访问 API。