I have been playing with products from Yubikey and OnlyKey the past few days. I have always been a big fan of using Check Point certificates for firewall administration, and the weak link is the passphrase. Tried to make a 256 character passphrase in R80.10, and instead found the limit:
Looks like 100 characters is the limit in R80.10 for certificate passphrases. This is a slight improvement over R77.30 which has a limit of 50 characters:
…and R77.30 does not accept question marks (?) as a character in passphrases:
Maximum Passphrase Size in R80.10