一、简介
verify命令对证书的有效性进行验证，verify 指令会沿着证书链一直向上验证，直到一个自签名的CA
二、语法
openssl verify [-CApath directory] [-CAfile file] [-purpose purpose] [-policy arg] [-verify_depth depth] [-ignore_critical] [-issuer_checks] [-crl_check] [-crl_check_all] [-policy_check] [-explicit_policy] [-inhibit_any] [-inhibit_map] [-x509_strict] [-extended_crl] [-use_deltas] [-policy_print] [-check_ss_sig] [-untrusted file] [-trusted file] [-CRLfile] [-help] [-verbose] [-engine e] [-] [certificates]
选项
三、实例
原文：http://www.cnblogs.com/274914765qq/p/4673327.html