Hostkey information taken from libssh2
Hostkey hash. If type has GIT_CERT_SSH_MD5 set, this will have the MD5 hash of the hostkey.
Hostkey hash. If type has GIT_CERT_SSH_SHA1 set, this will have the SHA-1 hash of the hostkey.
Hostkey hash. If type has GIT_CERT_SSH_SHA256 set, this will have the SHA-256 hash of the hostkey.