Unix crypt only accepted 8 characters and ignored the rest. If your password was 123456789, it was considered the same as 12345678a.
For local LAN play, Half-Life checked the CD key only for length I believe? It would happily accept 1234-56789-0123
For local LAN play, Half-Life checked the CD key only for length I believe? It would happily accept 1234-56789-0123