What Is a Certificate Authority (CA)?
什么是证书颁发机构（CA）？
A certificate authority (CA), also sometimes referred to as a certification authority, is a company or organization that acts to validate the identities of entities (such as websites, email addresses, companies, or individual persons) and bind them to cryptographic keys through the issuance of electronic documents known as digital certificates. A digital certificate provides: Authentication, by serving as a credential to validate the identity of the entity that it is issued to. Encryption, for secure communication over insecure networks such as the Internet. Integrity of documents signed with the certificate so that they cannot be altered by a third party in transit.
A 认证中心（CA），有时也称为 认证机构，是一家公司或组织，负责验证实体（例如网站，电子邮件地址，公司或个人）的身份，并通过发行称为“电子文件”的电子文件将其绑定到加密密钥 数字证书. 数字证书提供： 认证，作为凭证来验证颁发给该实体的实体的身份。 加密， 用于通过不安全的网络（例如Internet）进行安全通信。 诚信 文件 签 并附有证明书，以免运输中的第三方更改。