Answered by : creepy-cottonmouth-oz6922808tcs

openssl x509 -inform der -in certificate.der -pubkey -noout > public_key.pem

Source : https://stackoverflow.com/questions/29049267/extract-pem-public-key-from-x-509-certificate | Last Update : Sat, 31 Oct 20

Answered by : amit-rajput

E:\> openssl x509 -pubkey -noout -in cert.pem > pubkey.pem

Source : https://stackoverflow.com/questions/17143606/how-to-save-public-key-from-a-certificate-in-pem-format | Last Update : Mon, 04 Oct 21