evennia_decryption_lockfunc.py

# lockfuncs.py
def decrypt(accessor, target, *args, **kwargs):
    if args: # we've been provided a password
        password = args[0]
        if hasattr(accessor, "db"):
            # first we check if the accessing object has the password for the target
            if type(accessor.db.__channel_passwords) is dict:
                password_matches = accessor.db.__channel_passwords.get(target) == password
            else:
                accessor.db.__channel_passwords = {}
                password_matches = False
            # next we'll see if they pass a skill check
            # assuming Ainneve-style skills - please replace with whatever works
            if not hasattr(accessor, "skills"): # just in case we don't have a skills attribute
                return password_matches
            return password_matches or accessor.skills.decryption > 5
        else: # we don't have a typeclassed object
            return False
    else: # we don't have a password on this message
        return True