| Subject: | Add support for openssl fingerprint |
Hi.
In situations when you have access only to HOST:PORT and want to pine this certificate
this is impossible to call ->get_fingerprint, because it works on:
of an established connection
and if host have self-signed certificate the connection is not established:
SSL connect attempt failed error:14090086:SSL
See details [here](https://stackoverflow.com/q/53400241/4632019)
When hoster gives me his pubkey I get its fingerprint with openssl:
openssl x509 -noout -fingerprint -sha256 -inform pem -in web.feel-safe.net.crt
SHA256 Fingerprint=E0:3F:F1:4E:06:18:F7:93:34:6F:91:77:7F:C0:9E:3A:CF:93:F5:BC:12:71:38:30:AC:87:5E:21:7E:CB:7A:58
But this has different format and not suitable for IO::Socket::SSL module =(