This can be done via a digital certificate published in X.509 V3 format (assuming, of course, the vendor has complete control of the certificate and unauthorized people don't have it).
这一点可以通过使用 X. 509 V3格式发布的数字证书来完成（当然要假定供应商对证书由完全的控制，未经授权的用户不可能有该证书）。
Apply RBAC access control technique based on the attribute certificate to gain finer granularity, all with support to DER and PEM format of digital certificate.
采用基于属性证书的RBAC访问控制技术，可以实施更细粒度的访问控制技术。支持DER和PEM格式的数字证书。
Apply RBAC access control technique based on the attribute certificate to gain finer granularity, all with support to DER and PEM format of digital certificate.
采用基于属性证书的RBAC访问控制技术，可以实施更细粒度的访问控制技术。支持DER和PEM格式的数字证书。
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