春节返程高峰期已经开启了，所以各位要按时返岗上班，同时也要提前购买车票，避免出现一票难求的情况。目前多数人还在抢票当中，就有人想要知道，买不到车票不能按时上班，是否算旷工呢？
I do have certificates in DER and PEM format, my goal is to retrieve the fields of Issuer and Subject and verify the certificate with the CA public key and simultaneously verify CA certificate with th
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