class secret_properties(type):
    @property
    def hash_hex_length(cls):
        return 64

    @property
    def salt_separator(cls):   
        return ":"

    @property
    def salt_length(cls):
        return 16

    @property
    def salt_hex_length(cls):
        return cls.salt_length * 2
   
    @property
    def hash_rounds(cls):
        return 100000

    @property
    def hash_algorithm(cls):
        return "sha256"