JP2904052B2 - Password verification method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a password verification system, and more particularly to a radio selective call receiver with a display which can be used in a plurality of regions.

[0002]

2. Description of the Related Art Conventionally, in a portable wireless communication device, for example, a mobile phone, a password or a password is set so that a person other than the owner of the wireless communication device cannot use it without permission. By setting a password in advance, the owner cannot perform communication using the wireless communication device unless a password that matches the password set when the wireless communication device is used is input.

As for such a password, the more the number of characters or numbers in the combination is, the less likely it is to be known to a third party, but it becomes more difficult for the owner to memorize the password. In particular, in the case of a portable wireless communication device, unless a password is stored, a device in which a password is described must also be carried, which is very inconvenient.

Therefore, three or four digits of letters or numbers are used as this kind of password.

On the other hand, this kind of password is also used in information equipment. A system utilizing not only a simple combination of letters or numbers but also an input time interval of a keystroke of a password is disclosed in, for example, JP-A-63-23166.
No. 6 or JP-A-5-27861.

[0006] In the password collation method in these information devices, whether or not the password matches the password is determined depending on whether or not the time from the input of the n-th character to the input of the (n + 1) -th character is within an allowable range. Is done. For example, if the time from the input of the first character to the input of the second character is shorter or longer than a predetermined allowable range, even if the second character is a correct character, it does not match the password. Is determined.

As described above, by monitoring the input time interval between each character together with the password input order, security can be enhanced without increasing the number of digits of the password.

[0008] It is possible to use a password collation method used for this type of information equipment in a portable radio communication device.

[0009]

However, in such a password collation method, since an input time interval is added to the input sequence of the password as well as the input time interval, the owner needs to intuitively perform an appropriate timing for pressing the password. There is.

[0010] Further, since the input time interval is a time factor, there is a problem that the input time of the password is extended.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a password verification method that does not include a time element in password verification.

Another object of the present invention is to provide a password collating method which eliminates the need for time input of a password, enhances security without increasing the number of digits of the password, and improves the convenience of use. Is to do.

[0013]

In order to achieve the above-mentioned object, a password collation method according to the present invention compares a password stored in advance with a password to be input, and the password becomes operable when they match. In the collation method, when storing the password, a state in which a plurality of keys such as letters and numbers are simultaneously pressed, a state in which each key is individually pressed, and a number of a key pressed in each state
Means for storing the password, and
The pressed state and the number of the key stored in the storage
And a comparing means for comparing the pressed state and the number .

[0014]

Furthermore, if the result of the comparison is not a match, the security state is maintained.

[0016]

According to the above-described structure, the password collating method according to the present invention compares the key input state with the order of inputting the passwords. Therefore, the password collation does not include a time element, and the user can check the password. There is no need to consider temporal timing for inputs.

Further, there is no delay in inputting the password.

Further, the security can be enhanced without increasing the number of digits of the password, and the convenience of use can be improved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a functional block diagram of a portable telephone showing one embodiment of the present invention.

In FIG. 1, a portable telephone has an antenna 1,
Wireless unit 2, audio signal processing unit 3, transmitting and receiving unit 4, control unit 5,
It comprises a display unit 6, a key matrix unit 7, a registration unit 8, and an input analysis unit 9.

First, the operation of the mobile phone according to the present invention will be described.

The radio unit 2 transmits and receives signals via the antenna 1. The audio signal processing unit 3 converts the received signal into an audio signal and supplies the audio signal to the speaker of the transmission / reception unit 4. In addition, the audio signal processing unit 3 converts audio from the microphone of the transmission / reception unit 4 into a transmission signal and supplies the transmission signal to the wireless unit 2. The control unit 5 controls the wireless unit 2 and the audio signal processing unit 3.
The operation of transmitting and receiving these signals is not the gist of the present invention but the same as the generally performed operation, and therefore, detailed description is omitted.

The key matrix unit 7 is used for inputting the telephone number of the other party and for setting a password and inputting the password. The registration unit 8 stores the set password. At this time, the registration unit 8
Stores the key input state as well as the password order.

The input analysis unit 9 compares the input password with the password set in the registration unit 8. here,
The input order of the passwords is compared, and the keying state of the key matrix unit 7 is also compared as described later. If the input password matches the set password as a result of the comparison, a permission signal is supplied to the control unit 5 to enable operations such as calling. If the input analysis unit 9 determines that they do not match, a prohibition signal is sent to the control unit 5, and the mobile phone enters an unusable state. Therefore, operations such as calling are not performed.

In the case of a mismatch, the control unit 5 controls the display unit 6
May be displayed with an error message or the like.

Next, the password collation method in the present invention will be described in detail with reference to FIGS.

FIG. 2 is a flowchart showing an operation sequence of password input according to the present invention, and FIG. 3 is a flowchart showing control relating to determination of password coincidence mismatch according to the present invention.

In FIG. 2, the password set in advance is four digits in the order of "1, 2, 3, 4".

First, when the "1" key of the key matrix section 7 is depressed, the state of the first digit is entered. That is, only the key of “1” is pressed as the first digit. When the first digit password and its keying state match, the state becomes a state of waiting for input of the next digit, that is, a state of accepting (accepting) the next password.

Next, when the key of the second digit "2" is depressed while the key of the "1" is depressed, the key input state is changed to the state shown in FIG. When the password of the second digit, that is, “2”, and its key-pressed state, that is, the pressed state of “1” and “2” match, a state of waiting for the input of the third digit (
State).

State, that is, when inputting the second digit,
If “2” is not pressed or “2” is pressed without pressing “1”, it is determined that they do not match, and the state does not shift to the next state.

In the third digit password acceptance permission state,
If the key of “3” is pressed while the key of “1” is pressed, the state of (the state of) the third digit is entered. here,
If it is determined that they match, a state of (waiting for) input of the fourth digit is entered.

When the key of the last fourth digit, "4", is pressed without pressing the key of "1", 4
The state of (the state of) the keystroke of the digit. At this time, "4"
If any other key is pressed, or if "4" is pressed while "1" is pressed, it is determined that they do not match.

The control relating to the determination in the above embodiment will be described with reference to the flowchart of FIG.

Input of the nth digit (n = 1, 2, 3,...)
In (Step 101), it is determined whether or not the input passwords match (Step 102). Here, if it is determined that the password does not match, that is, if the matched password is not input, it is determined that the password has failed (step 1).
06).

If the passwords match, it is determined whether the keying states match (step 103). Even if the passwords match, it may be determined that the passwords do not match (step 106) by determining whether the password is being pressed simultaneously with another key.

In step 103, when the key input states match,
Next, it is determined whether or not the number of input digits matches the number of digits of the password (step 104). In the above-described embodiment, the password is a four-digit password. Therefore, if the passwords match up to the fourth digit, all password inputs are determined to be passed (step 10).
5).

Here, the input of the key of the second digit "2" will be specifically described.

When the key "2" is pressed during input of the second digit (step 101), it is first determined whether or not the password matches the second digit of the password registered in advance (step 102). . Since the key of "2" matches the second digit of the password, the keystroke state at the time of input of the key of "2" is determined (step 103).

When the key "2" is pressed, if the key "1" is also pressed (the state shown in FIG. 2), it is determined that the keying states match and the password is not the fourth digit of the password ( (Step 104) The state of (the state of) the third digit is accepted (Step 101).

For example, if the key of "1" is not pressed when the key of "2" is pressed, it is determined that the keys are not matched, and the determination result is unsuccessful.

As described above, it is determined whether the passwords match or not by taking into account not only the order of the passwords but also the key-pressing state of the passwords. This allows
Security can be increased.

FIG. 4 is a flowchart showing the control in the input analyzer of the present invention.

First, the number of digits N (N is a positive integer) of a key to be input is set to n = 1 (n = 1, 2, 3,...) (Step 201), and key input of the first digit is performed. (Step 202). When the first digit key is pressed in step 202, it is determined whether the pressed key matches the first digit of the password registered in advance (step 203).

When it is determined that they match, it is determined whether or not the keying state in the input of the first digit matches the keying state of the password registered in advance (step 204). If it is determined that they match, N = n + 1 is set (step 205). Now, since n = 1, N = 2. Then, the number of digits k (k =
(1, 2, 3,...) And N are compared (step 20).
6). For example, if k = 4, (N = 2) ≠ (k =
4), the processing of steps 202 to 205 is repeated until N = 4.

When N = k in step 206, a coincidence signal is supplied from the input analyzer 9 to the controller 5 (step 207). In response to the coincidence signal, the control unit 5 turns on the mobile phone, and enables operations such as a calling function and a memory dial call. For example, power is supplied to the wireless unit 2 and the audio signal processing unit 3.

On the other hand, if it is determined in steps 203 and 204 that there is a mismatch, a mismatch signal is supplied from the input analyzer 9 to the controller 5 (step 209). In the control unit 5,
In response to the mismatch signal, an error message or the like is displayed on the display unit 6, and the operation of protecting the security of the mobile phone is continued. This will prohibit calling the memory dial,
Prohibition of the calling function is achieved.

If no key input is made in step 202, it is determined whether or not a predetermined time t has elapsed (step 208). When the time t has elapsed, a mismatch signal is transmitted (step 209).

In the above-described embodiment, the description has been given of the portable telephone. However, the present invention is not limited to the portable telephone, but can be used for other communication equipment or information equipment.

[0051]

As described above, the password collating method according to the present invention compares the order of inputting passwords and the state of keystrokes at the time of inputting characters and numbers of each password, thereby shortening the time required to input a password. This eliminates the need for proper timing, improves security without increasing the number of digits in the password, and improves convenience.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a mobile phone according to an embodiment of the present invention.

FIG. 2 shows an operation sequence of password input according to the present invention.

FIG. 3 is a control flowchart relating to determination of a password match / mismatch according to the present invention.

FIG. 4 is a flowchart illustrating control in an input analysis unit of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Antenna 2 ... Radio | wireless part 3 ... Voice signal processing part 4 ... Transmission / reception part 5 ... Control part 6 ... Display part 7 ... Key matrix part 8 ... Registration Unit 9: Input analysis unit

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 1/66 H04Q 7/14 H04Q 7/38

Claims (3)

(57) [Claims] 1. A password collating method which is operable when a password stored in advance and a password to be inputted are compared and matched, wherein a plurality of keys such as characters and numerals are used when storing the password. and a state in which the state and the key pressed at the same time is pressed individually, said storage means for serial <br/>憶the number of the pressed key in each state, the pressed state and the number of passwords to be the input The above
Compares the pressed state and number of the key stored in the storage means
And a comparing means for comparing the password. Wherein further comprising a display means, the comparison in the comparison means result, claim and operable if they match, and displaying an error message on the display means when it does not match 1 Password verification method described. 3. A password collating method which is operable when a password stored in advance and an input password are compared and matched, wherein one key such as a character or a number is used when storing the password. While the other key is pressed while pressed
It said storage means for storing with the number of the pressed key, the depressed state and the number of passwords to be the input
Ratio to be compared with the pressed state and number stored in the storage means
Password collation method characterized in that it comprises a compare unit.