I've created a Go program to connect to a website and get the certificates it uses. I'm not sure how to get the correct representation of the public key.
I can fetch the certificate and I can type check on Certificate.PublicKey. Once I understand it's rsa.PublicKey or ecdsa.PublicKey I'd need to print the hex representation of it.
switch cert.PublicKey.(type) {
case *rsa.PublicKey:
logrus.Error("this is RSA")
// TODO: print hex representation of key
case *ecdsa.PublicKey:
logrus.Error("this is ECDSA")
// TODO: print hex representation of key
default:
fmt.Println("it's something else")
}
I'd expect it to print something like:
04 4B F9 47 1B A8 A8 CB A4 C6 C0 2D 45 DE 43 F3 BC F5 D2 98 F4 25 90 6F 13 0D 78 1A AC 05 B4 DF 7B F6 06 5C 80 97 9A 53 06 D0 DB 0E 15 AD 03 DE 14 09 D3 77 54 B1 4E 15 A8 AF E3 FD DC 9D AD E0 C5