The digital certificate contains specific pieces of information about the identity of the certificate owner and about the certificate authority, including

数字证书包含关于证书所有者的身份以及认证机构的信息，包括

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When a specific protocol (for example, CSIv2) is not available to propagate security information for identity assertion, but the identity is available as part of the message.

当某个特定的协议(例如，CSIv2)无法用于传播标识断言的安全信息，但标识作为消息中的一部分是可用的。

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With a normal summons, the IRS seeks information about a specific taxpayer whose identity it knows.

FORBES: Wells Fargo Hit With IRS Summons For Tax Haven Account Data