To prevent a card from being illegally used in such a case or the like that the card is lost by providing a high security function and making it difficult to decode a personal identification number and also to prevent a specified personal identification number from being known to others.

This card is provided with an input operating part 24 which inputs plural pieces of information, a guidance displaying part 28 which guides an operation order of the part 24, an input displaying part 26 which displays the information inputted by the part 24 and an information processor which inputs and registers the information from the part 24. Then, the information processor is provided with a comparing and collating part that compares whether or not information being the same as the registered information is inputted from the part 24.