If no authenticator information is returned in the token view , the authenticator is the instance of sql server 如果标记视图中没有返回身份验证者信息，则身份验证者是sql server实例。
Frequently , the authenticator is either the system administrator or the instance of sql server , or with databases , the 通常，身份验证者是系统管理员( sa )或sql server实例，或者对于数据库来说，它是
The authenticator is effectively the owner of the scope within which the context for a particular user or login is established 身份验证者实际上是在其中为特定用户或登录帐户建立上下文的范围的所有者。
This authenticator information is captured within the token information maintained for the login and user and is visible through the 此身份验证者信息在为登录帐户和用户维护的标记信息内捕获，并可以通过
As a result , any execution context that has the grantee of this permission as its authenticator is valid within the database 这样，将此权限的被授权者作为其身份验证者的任何执行上下文在该数据库内有效。
If the signature is not verified , the authenticator is not added to the token and the attempt to access the external resource fails 如果未验证签名，不会将身份验证者添加到标记中且尝试访问外部资源将失败。
The trust on this authenticator is verified in the same way as the trust is verified when the database owner is the authenticator 验证此身份验证者是否可信的方式与数据库所有者作为身份验证者时的验证方式相同。
The authenticator , either the database owner or a certificate or asymmetric key used to sign the module , must be trusted in the target scope 身份验证者（数据库所有者或用于给模块签名的证书或非对称密钥）必须在目标范围内是可信的。
The signature verifier must have access to the public key certificate that contains the public key associated with the private key used to produce the signature 签名验证者必须有权使用包含与用于生成签名的私钥关联的公钥的公钥证书。
The context is also valid across other scopes , for example , other databases or the instance of sql server itself , in which the authenticator is 该上下文在其他范围（例如，其他数据库或sql server实例本身）内也有效，在这些范围内，身份验证者是“可信
