JPH031991A - Portable electronic device - Google Patents

Abstract

PURPOSE:To save labor in confirming the necessity for identification by providing a memory means for confirming the necessity for identification, so that the necessity for confirming an identification number can be set from outside before each function among a plurality of capable functions is started. CONSTITUTION:When an (i)th funcion key on a keyboard 5 is depressed to select an (i)th function, an identifying information Fi corresponding to the depressed function key is retrieved among an information storage area 21 wherein the information to identify the start of procedures is stored. It is detected by confirming a reference information Di related to the necessity for identification and corresponding to the Fi whether the (i)th function is a function reguiring an identification before the proce dure is started. When it is determined by the Di that the Fi needs to be identified, a ten key on the keyboard 5 is depressed to refer to an identification number P stored in an identification number storage area 22 on the basis of an identification program A in a program area 24. If the Fi does not agree with the identification number, the fact is displayed on a liquid display part 4. On the contrary, if the identification number is correct, the function is processed according to a program Ri. Meanwhile, if it is detected by the Di that the Fi needs not to be identified, the function is prompt ly processed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a portable electronic device such as an IC card.

(Prior Art) In recent years, IC cards have been developed as portable electronic devices, such as IC cards with built-in IC chips that have erasable non-volatile data storage and control elements such as a CPU. In order to realize these functions, so-called multi-functional IC cards equipped with a keyboard, a liquid crystal display, etc. have been attracting attention. Such a multifunctional type I
With the C card, various functions can be performed by operating the keyboard while viewing the display on the liquid crystal display.

(Problem to be solved by the invention) By the way, in the multi-functional IC card as mentioned above,
From the viewpoint of preventing abuse by a third party other than the owner, for example, it has been considered to assume that the passwords match when starting high-security processing. However, as to whether or not it is necessary to match the password verification,
These are uniquely determined in the processing programs for various functions created by the manufacturer, and cannot be arbitrarily selected and determined later. This means that there is little flexibility given that high-security processing varies from user to user, and is one of the issues that should be improved in consideration of the future versatility of IC cards.

In order to solve this problem, there is a method of storing both a program that includes password verification matching processing and a program that does not include it for one functional process, and selecting and combining them later. It takes a lot of time to create, and most of all, it is boring.

The present invention has been made in view of the above, and an object of the present invention is to provide a portable electronic i that can arbitrarily determine whether or not password verification is required for each function without requiring time and effort to start processing various functions. It is about providing the equipment.

[Structure of the Invention] (Means for Solving the Problem) In order to achieve the above object, the present invention provides a portable electronic device that realizes a function corresponding to an instruction from an input means among a plurality of possible functions. The following is a description of the password storage means for storing password information and the necessity of verifying the 8a certificate at the start of processing for each function instructed by the input means. The verification necessity storage means has a verification necessity storage means for storing verification necessity information to be performed, and a storage section in which a program for performing password verification and a program for realizing each function are stored, and the verification necessity storage means If the function instructed based on the stored information requires clear verification or verification, the purpose is to perform the password verification using the password verification program in the storage section.

(Function) In the portable electronic device according to the present invention, a verification necessity storage means is provided to externally store the necessity of IIFJ certificate verification at the start of processing for each function for a plurality of functions that can be realized. It can be set from

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows the appearance of a multifunctional IC card as a portable electronic device according to the present invention. 1 is the card body, which is made of, for example, a rectangular thin plastic plate. A predetermined portion on the surface of the card body 1 is electrically connected to an integrated circuit (IC>2) embedded in the card body 1, and is used to electrically communicate with an external device (for example, a card reader/writer) not shown. Contact section 3, liquid crystal display section 4 that displays input/output data, time, etc., J3
and a keyboard 5 for data input. The keyboard 5 is provided with a digital key a3, function keys, and the like. Further, a crystal oscillator 6 and a battery 7 for supplying electricity are embedded within the card body 1.

FIG. 2 shows the circuit configuration of the above-mentioned IC card. In other words, the control electronics 11 such as 01 mouth are the entire! 1
The control electronics 11 is connected to the contact section 3, the liquid crystal display section 1, and the keyboard 5, as well as a data memory 1 for storing data.
2, a program memory 13 that stores processing programs for the control electronics 11, and a clock circuit 14 are connected, and among these, the υ control element 11, the data register 12,
The program memory 13 and the clock circuit 14 are formed of one chip (or a plurality of chips) as an integrated circuit 2, and the integrated circuit 2 is supplied with operating power by a battery 7. Data memory 12 and program memory 13 are constructed of erasable nonvolatile memories such as EEPROMs. Clock circuit 1
4 generates date and time information by counting the reference clock output from the crystal oscillator 6.

FIG. 3 is a diagram showing the configuration of the data memory 12. The data memory 12° is an area for storing processing start identification information (F+ to Fn) for functions corresponding to each of the plurality of function keys on the keyboard 5, and a password verification requirement at the start of processing for each function. Verification necessity information indicating whether
A processing start identification information storage area 21 consisting of an area for storing 1lai! A password storage area 1422 in which the iE number P is stored, a data area 23 in which various data Q such as the number of password verification errors are stored, and a program (
△.

R+, R2, . . . ) are stored in the program area 24.

Note that the verification necessity information IDi is expressed, for example, as a 1-byte character code, such as 11111 for a function that requires password verification, and r OII f for a function that does not require password verification.
It is sufficient to write it as K. Each area 2 in the data memory 12
1, 22, and 23 can be arbitrarily performed under predetermined conditions, for example, in the card reader/writer. In particular, verification necessity information (D+~
Regarding Dn), the necessity can be determined individually according to the user's wishes after the creation of the processing program for each machine, so there is a greater degree of freedom than in the past, and this will contribute to the future general-purpose ratio of IC cards. It is possible.

In the program memory 13, for example, when a plurality of function keys on the keyboard 5 are pressed, process start identification information Fi corresponding to the pressed key is searched from the process start identification information storage area 21, and the searched process Start identification information "A program for identifying i is stored.

Next, the operation of this embodiment will be explained using the processing flowchart shown in FIG.

When the first function key on the keyboard 5 is pressed, the i? Once the first function is selected, step 3
1) Processing start identification information Fi corresponding to the pressed function key is searched in the processing start identification information storage area 21 (step 32).

Next, it is determined whether the function requires password verification at the start of processing by identifying verification necessity information Di corresponding to the searched processing start identification information Fi (step 33). If it is determined in step 33 that the processing start identification information Fi is a function that requires password verification based on the verification necessity information Qi, password verification is performed by pressing the numeric keypad on the keyboard 5 based on the password verification program 8 in the program area 24. is carried out (step 34). Here, as a password verification process, the data of the pressed numeric keypad is verified against the password P stored in the password storage area 22, and if the verification is incorrect, a message etc. indicating the password verification mismatch is displayed on the liquid crystal display. 4 and end there. Conversely, if the verification is correct, the selected function is processed based on the program Ri in the program area 24 (step 35) and the process ends. On the other hand, in step 33, if it is determined that the process start identification information F1 is [1a certificate verification is not required] from the verification necessity information D1,
No password verification process is performed, and the selected function is immediately processed (step 35).

If it is determined in step 33 that the process start identification information F+ is neither a function that requires password verification nor an unnecessary function, a message of invalid data or the like is displayed on the liquid crystal display section 4, and the process ends there.

Therefore, according to this embodiment, since the verification necessity information can be freely set after creating the processing program for each function, the user does not have to take the trouble of creating a program that does not match the program that includes verification processing, as described above. It is possible to realize a function that assumes verification processing based on the wishes of the user.

Although this embodiment has been described using an IC card as an example of the portable electronic device, it goes without saying that the portable electronic device is not limited to this.

[Improvement effect] As explained above, according to the present invention, a verification necessity storage means is provided, and for a plurality of functions that can be realized, it is possible to externally inform each function fσ whether or not a password verification is necessary at the start of processing. Since the setting is possible, it is possible to arbitrarily decide whether or not password verification is necessary when starting the processing of various functions for each function without any effort.

[Brief explanation of the drawing]

1 and 2 are respectively an external perspective view and a circuit block diagram of an IC card according to an embodiment of the present invention, FIG. 3 is a diagram showing the configuration of a data memory, and FIG. 4 is an explanation of the operation of the embodiment. FIG. 1...Card body 2...Integrated circuit 3...Contact section 4...Liquid crystal display section 5...Keyboard 6.
...Crystal oscillator 7...Battery 11...Control element 12...Data memory 13...Program memory 14...Clock circuit 21...Processing start identification information storage area 22...Password? No. 3 storage area 23...data area

Claims (1)

[Claims] In a portable electronic device that realizes a function corresponding to an instruction from an input means among a plurality of possible functions, a password storage means for storing password information and a process for starting processing for each function instructed from the input means are provided. a verification necessity storage means for storing verification necessity information regarding the necessity of verification of the password, and a storage unit storing a program for performing the password verification and a program for realizing each function, and the above-mentioned A portable electronic device characterized in that when the function instructed based on the information stored in the verification necessity storage means is a password and verification is required, the password verification program in the storage unit performs the password verification.