How to find public key type of SSL/TLS X.509 certificate using OpenSSL
Use the following command to print, replacing cert.pem
by the path of your certificate:
openssl x509 -noout -text -in cert.pem | grep -i "Public Key Info" --after 3
Example output:
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
RSA Public-Key: (2048 bit)
Modulus: