openssl查看key和证书

证书

openssl x509 -in cert.pem -text -noout
openssl x509 -in certificate.der -inform der -text -noout
openssl x509 -subject -dates -fingerprint -in postgresql.pem

public key

openssl x509 -in server.crt -noout -pubkey

key

openssl rsa -in key.pem -check
openssl pkey -in server.key -pubout

csr

openssl req -text -noout -verify -in avagent.csr