台大研所備考 | 資管所 & 資工所

107年

第 11 題

2.5 分

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Which of the following about digital certificate is wrong?

a.the "Serial Number" field in a digital certificate is used to track revocation informationb.the "Issuer" field specifies the entity that verified the information and signed the certificatec.it needs to contain the certificate owner's public keyd.X.509 is a standard that defines the format of public key certificatese.all of the above are correct (choose this only if none of the above can be chosen).