CmdID

CmdID / Commands

openssl-x509

Manage X.509 certificates. tldr-pages

On several platforms

Opens CmdID with your command. It is read in your browser and sent nowhere.

Several platforms

from tldr-pages, CC BY 4.0

Display certificate information

openssl x509 -in filename.crt -noout -textIdentify

Display a certificate's expiration date

openssl x509 -enddate -noout -in filename.pemIdentify

Convert a certificate between binary DER encoding and textual PEM encoding

openssl x509 -inform der -outform pem -in original_certificate_file -out converted_certificate_fileIdentify

Store a certificate's public key in a file

openssl x509 -in certificate_file -noout -pubkey -out output_fileIdentify