Openssl
reference https://www.madboa.com/geek/openssl 常用命令 X509证书 # 等于cat alipay/alipayCertPublicKey_RSA2.crt openssl x509 -in alipay/alipayCertPublicKey_RSA2.crt # 格式化输出 openssl x509 -in alipay/alipayCertPublicKey_RSA2.crt -noout -text # 导出 public key openssl x509 -in ~/cert/wxpay/apiclient_cert.pem -pubkey -noout > public.pem 摘要 openssl md5 ~/Downloads/CertTrustChain.p7b openssl sha256 ~/Downloads/CertTrustChain.p7b p12 p12是个keystore，可以存放证书，私钥 # 提取私钥 可能需要输入密码 openssl pkcs12 -in wxpay/apiclient_cert.p12 -out aa-key.pem -nocerts # 提取证书（证书带公钥） openssl pkcs12 -in wxpay/apiclient_cert.p12 -out aa.crt -clcerts -nokeys # 证书提取公钥 openssl x509 -in aa.crt -pubkey -noout > public.pem p7 证书信任链...