JP2002007699A - Password input system, portable information terminal using the same and network financial system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simplified password input system for portable terminal equipment in a Japanese language environment. SOLUTION: A full angle character string is used as a password. When the full angle character string is used for the password, KANJI and KANA can be used. Therefore, the selection width of the password is remarkably increased and a security function is improved. Besides, by using the full angle character string, the conversion of full angle /half angle is not required when inputting the password and convenience is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a password input system.

[0002]

2. Description of the Related Art When exchanging information over a network, it is common to use a password input for personal identification. At this time, a half-width character string has been conventionally used as the password.

[0003]

The half-width characters are created on the assumption that the computer work is performed in an environment of an alphabet language such as Europe and the United States. On the other hand, computer work in Japan mainly uses hiragana and katakana, including kanji. Thus, full-width characters are commonly used in the Japanese computer work environment.

At present, managing access rights to personal information by inputting a password is an indispensable technique for using a computer or a network. At this time, since the system was constructed based on the OS environment in Europe and the United States, it was common to input the password as a single-byte character string. Therefore, in order to input a password in a Japanese environment, it is necessary for the user to change from a full-width character input environment to a half-width character input only when the password is input, which is complicated. In addition, a computer novice may not be able to input a password successfully because the difference between full-width and half-width characters is unknown.

[0005] Also, especially elderly people tend to prefer hiragana input to computer input in romaji.
It was difficult for elderly people to operate only half-width alphanumeric characters for passwords.

Furthermore, the alphabet has only 26 characters, and it is difficult to provide many passwords that are easy for the user to remember and difficult to be known to others, even when combined with numbers and the like.

[0007] When a mail is created on a mobile phone or the like, it is common to convert a kana-kanji character after inputting a hiragana when writing the mail. This is because, in the case of a mobile phone, the number of times the number key is pressed is applied to the Japanese 50 sounds, and the hiragana input is the easiest to use. For this reason, it is extremely complicated to input a half-width character string only when inputting a password using a mobile phone.

[0008] For this reason, a password input system and a device which are easy to use in a Japanese environment are required especially when a portable information terminal is used.

[0009]

Means for Solving the Problems In order to solve the above problems, the present invention has taken the following means.

A first password input system according to the present invention is characterized in that a character string including full-width characters is input to a password recognition unit as a password. By using a full-width character string as a password, it is possible to input a password in a Japanese environment, and there is no need to switch between full-width and half-width characters. Also, by using full-width character strings, kanji,
Hiragana, katakana and double-byte numbers can be used. 1850 Kanji characters, 5 for Hiragana and Katakana
Since there is one character, the number of character strings that can be used as a password is greatly increased, and there is an advantage that a character string that can be easily remembered by an individual can be used as a password. In addition, by increasing the types of passwords, the danger that a personal password can be guessed from birthday numbers and initials is reduced.

A second password input system according to the present invention comprises: a hiragana input unit for inputting a hiragana character string; a kana-kanji conversion unit for converting at least a part of the input hiragana into kanji or katakana; It has a password recognition unit that recognizes a column as a password. According to this configuration, a part of a character string input in Hiragana can be converted into kanji or katakana and then used as a password.

According to a third password input system of the present invention, a katakana input unit for inputting a katakana character string, a kana-kanji conversion unit for converting at least a part of the input katakana into kanji or hiragana, and an input character It has a password recognition unit that recognizes a column as a password. With this configuration, a part of a character string input in katakana can be converted to kanji or hiragana and then used as a password.

[0013] The first portable information terminal of the present invention is characterized by claim 1
The password input system according to any one of (1) to (4), including a half-width conversion unit that converts the input password into a half-width character string password, and a transmission unit that transmits the converted password to a password recognition system connected via a network. It is characterized by the following. A company based on an overseas network system that does not support full-width character string passwords by converting the entered full-width character string password into a half-width character string using a half-width conversion unit and sending it It is also possible to send a password to the user. In addition, a user of a portable information terminal in Japan can use a full-width Japanese character string for password entry requested by an overseas business operator.

According to a second aspect of the present invention, there is provided a portable information terminal.
A portable information terminal having a password input system described in the paragraph 4 and a transmitting unit for transmitting a password, the portable information terminal including a password recognition unit for recognizing a password recognition system of a password destination connected via a network on the side of the portable information terminal. It is characterized by the following. By having the password recognition unit of the other party, if the password recognition system of the other party recognizes a full-width character string, it transmits the password of the full-width character string as it is, and if the other party recognizes only the password of the half-width character string, it converts the password. It is possible to convert a full-width character string of a password into a half-width character string and send it using the section.

[0015] The third portable information terminal of the present invention, when accessing information stored in the portable information terminal, claim 1.
The information is accessed by using the password input system described in (4). By setting a full-width character string as a password, in an environment of hiragana or katakana input, conversion between full-width and half-width characters becomes unnecessary and operability is improved.

[0016] The online financial system according to the present invention is characterized in that the portable information terminal is connected to a financial system on a network, and the user of the portable information terminal accesses a financial account in the online financial system. Is characterized in that a password input system is used. By using a full-width character string as a password, the number of character strings that can be used as a password is dramatically increased, and the ability to manage security of personal information in a financial system is greatly improved.

Further, since the portable information terminal has a telephone function and a virtual money function for exchanging virtual money with a financial account, electronic money can be used using a portable telephone. For this reason, a dedicated card such as a debit card is not required, and convenience is improved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a password input system according to the present invention, and a portable information terminal and an internet financial system using the same will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram of a first password input system of the present invention.

A key input unit 101 for keying a full-width character string from a keyboard or the like, a kana-kanji conversion unit 101 for converting an input full-width character string to a kana-kanji character, an input determination unit 102 for determining the converted character string, and a password It comprises a password recognition unit 103 for recognition.

By providing the kana-kanji conversion unit 101, it is possible to convert a character string input in full-width characters into a character string desired by the user, and to use kanji, which is used for a password. The number of types of character strings can be greatly increased.

(Embodiment 2) FIG. 2 is a block diagram of a second password input system of the present invention.

After performing Hiragana input from a keyboard or the like (Hiragana input unit 200), by performing Kanji conversion in the Kana-Kanji conversion unit 201, it becomes possible to input a full-width character password by Hiragana input.

(Embodiment 3) FIG. 3 is a block diagram of a third password input system of the present invention.

After performing katakana input from a keyboard or the like (Katakana input unit 300), the kana-kanji conversion unit 301 performs kanji conversion, thereby enabling password input of full-width characters by katakana input.

(Embodiment 4) FIG. 4 is a block diagram showing the operation of the first portable information terminal of the present invention.

A half-width conversion unit 404 having the password input system according to claims 1 to 4 for converting an input password into a half-width character string password, and a password recognition system connecting the converted password via a network. And a transmitting unit 405 for transmitting the data to The full-width character string password recognized by the password recognition unit 403 is
By performing half-width conversion and transmitting, even when the password system of the transmission destination does not recognize a full-width character string, access becomes possible. In this case, the half-width character string converted by the half-width conversion unit 404 is recognized as a password by the other side. An arbitrary method can be used as the conversion method in the half-width conversion unit 404. For example, the correspondence may be obtained by a character code. In addition, a full-width character string information may be converted to a half-width character string information by using a mathematical method. For example, the information may be converted using a key encryption method or an elliptic function method used for encryption technology.

(Embodiment 5) FIG. 5 is a block diagram showing the operation of the second portable information terminal of the present invention.

A second portable information terminal according to the present invention is characterized in that:
And a password input system 500, a transmitting unit 507 for transmitting and receiving information signals such as a password, and a receiving unit 50.
8. It is characterized by having a destination password system recognition unit 505 and a password conversion unit 506.

The destination password system recognition unit 505
By transmitting and receiving information signals to and from the password recognition system 509 of the other party, the function of the password system of the other party is recognized. If the other system recognizes a full-width character string as a password, the password recognition system 5
When the password of the full-width character string recognized in 00 is transmitted and the other side recognizes only the password of the half-width character string, the full-width character string of the password is converted into a half-width character string by using the password conversion unit 506. Send to the other party.

The use of the password system recognition unit 505 makes it possible to use a full-width character string password regardless of the system recognition method of the system. Therefore, even when the other party does not use the Japanese environment of an overseas business operator or the like, it is possible to use a full-width character string password.

(Embodiment 6) FIG. 6 is a block diagram of a third portable information terminal according to the present invention.

This portable information terminal accesses the password input system 600 according to claims 1 to 4, the information access determining unit 605 for determining whether or not the input password is acceptable, and the stored information 606 in the portable information terminal. An information control unit 607 displays information on the information display unit 608.
With this block configuration, it is possible to access personal information and business information in the portable information terminal using a full-width character string password. By using the password of the full-width character string, convenience is improved particularly when the portable information terminal is used for hiragana or katakana input.

(Embodiment 7) FIG. 7 is a block diagram relating to the net financial system of the present invention.

When accessing the financial account system 708 of the Internet financial system 705 on the network using the portable information terminal system 700, the password input system 701 according to claims 1 to 4 is used.

The password of the full-width character string transmitted by the password transmission system 702 is judged by the password recognition system 706 as to whether or not access is possible. When access is permitted, the information control system 707
After accessing the financial account system 708 of an individual or a corporation, virtual money or the like required by the user is transmitted and stored in the information storage system 704 through the information reception system 703 of the portable information terminal system 700. By using a double-byte character string as a password in this way, the number of character strings that can be used as a password is dramatically increased, and the ability to manage security of personal information in a financial system is greatly improved.

In the case where the net financial system does not recognize a full-width character string as a password, the password is converted to a half-width character string as necessary by using the forward password recognition system as shown in the fifth embodiment. May be sent.

[0038] Further, as the portable information terminal transmits and receives information to and from the Internet financial system, a portable telephone terminal having a telephone function can be used.

Next, a specific example of the present invention will be described.

(Example 1) FIG. 8 is an example of a portable information terminal equipped with a password input system according to Embodiment 2 of the present invention. A display 801 and a key input unit 803 having a plurality of input keys 804 are mounted on a housing 800. A password input unit 802 on the display 801
Is displayed, the password A806 is entered in double-byte characters. The password A806 was changed to “Suzuki” by Hiragana input, and then “Suzuki” was selected by a Kana-Kanji conversion key, and then confirmed as a password. (FIG. 8 (a)) The password was determined by providing a plurality of functions to the kana-kanji conversion key, having a confirmation function by pressing the kana-kanji conversion key vertically, and a kana-kanji conversion function by pressing the key diagonally.

At the same time as the determination, the password A806
Is displayed as “*” as the password B 807 to ensure security (FIG. 8B).

By transmitting the determined password through the internal transmission system and the antenna 808, the password can be exchanged with the network system.

When kanji is used for the password, for example, "Suzuki", "Suzuki",
"Suzuki" etc. can be selected, and the selection range is expanded. Further, even if the color information is given to a part of the character, the selection range is further expanded. For example, the "bell" of Suzuki may be red and the "tree" may be blue and used for the password. It should be noted that adding a color to a character to increase the selection range of a password is effective not only for a full-width character string but also for a half-width character string password.
For example, if "su" of "suzuki" is red and "zuki" is black, the selection range is expanded. Further, information on the font type of the character may be added to the password. For example, by using a mixture of Mincho and Gothic fonts for a password, the range of password choices is expanded.

The input of the password may be other than the key input. For example, the voice input may be converted into characters and used. Further, when inputting the password, the input character string may not be displayed even before the password is determined, and may be replaced with an “*” mark or the like. Substituting further improves the security function.

In the above example, the passwords are all full-width character strings, but may include half-width character strings. If you include a half-width character string, the selection range will be further expanded. The same effect can be obtained even when a full-width numeral or a full-width special symbol is included in the password.

In the above example, a portable information terminal is used. However, the same effect can be obtained with a fixed information device such as a desktop personal computer.

(Embodiment 2) This is an embodiment of a portable information terminal provided with the password input system of the third embodiment.

With the same configuration as in the first embodiment, a configuration was made in which password input could be performed by katakana conversion. At this time,,
After entering “Suzuki” in katakana, the password was changed to “Suzuki” by Kana-Kanji conversion.

(Embodiment 3) FIG. 4 is a block diagram showing the operation of the first portable information terminal of the present invention.

After inputting "Suzuki" as a password,
The input password was converted to “suzuki” using the half-width conversion unit 404 that converts the password to a half-width character string password, and the password was obtained. By transmitting the converted password to a password recognition system connected via a network, access is possible even when the password system of the transmission destination does not recognize a double-byte character string.

At this time, since the password in the portable information terminal on the user side is “Suzuki”, it is possible to access an external system such as an overseas one while the use width of the password is widened.

(Embodiment 4) FIG. 5 is a block diagram showing the operation of the second portable information terminal of the present invention.

[0053] The second portable information terminal of the present invention comprises:
And a password input system 500, a transmitting unit 507 for transmitting and receiving information signals such as a password, and a receiving unit 50.
8. It is characterized by having a destination password system recognition unit 505 and a password conversion unit 506.

The destination password system recognition unit 505
By transmitting and receiving information signals to and from the password recognition system 509 of the other party, the function of the password system of the other party is recognized. At this time, an identification signal is transmitted from the portable information terminal, and “1” is set when a password of a full-width character string is supported from the other system, and “0” is set for a password of a half-width character string only. A system that returns a signal was used.

After receiving the signal of the other party, if the system of the other party recognizes a full-width character string as a password,
The full-width character string password recognized by the password recognition system 500 is transmitted. If the other party recognizes only a half-width character string password, the password conversion unit 50
6, the full-width character string of the password was converted to a half-width character string and sent to the other party.

By using the destination password system recognition unit 505, it becomes possible to use a full-width character string or a half-width character string password in accordance with the system recognition of the other side.

In the third embodiment, the full-width character string password is sent as a half-width character string password.
By using this embodiment, it is possible to cope with the system of the other party, and the convenience is improved.

(Embodiment 5) FIG. 6 is a block diagram of a third portable information terminal according to the present invention.

This portable information terminal accesses the password input system 600 according to claims 1 to 4, an information access determination unit 605 for determining whether or not the input password is acceptable, and the stored information 606 in the portable information terminal. An information control unit 607 displays information on the information display unit 608.
With this block configuration, it is possible to access personal information and business information in the portable information terminal using a full-width character string password.

As the stored information, personal information necessary for electronic commerce, such as a personal financial account number and a credit card number, can be stored. By accumulating personal financial information, it is not necessary to key in personal financial information required for settlement at the time of electronic commerce every time, and the stored information can be transmitted directly to the other party.

Further, by using a full-width character string password, the convenience is improved particularly when the portable information terminal is used for hiragana or katakana input.

(Embodiment 6) FIG. 7 is a block diagram relating to the net financial system of the present invention.

As the portable information terminal system 700, a portable telephone terminal was used. When accessing the financial account system 708 of the online financial system 705 on the network, access was made using a full-width character string password. Conventional passwords used four-digit numbers to identify individuals, so only 10,000 passwords could be used. By using full-width character strings as passwords, the types of passwords increased dramatically, and security functions Improved.

The user accessed the financial account and utilized the electronic money system of the online financial system to store the electronic money in the user's mobile phone. This eliminates the need for a dedicated card such as a debit card that has been conventionally used.

By using a full-width character string as a password in this way, the number of character strings that can be used as a password is dramatically increased, and the security management ability of personal information in a financial system is greatly improved.

When the net financial system does not recognize a full-width character string as a password, the password is converted to a half-width character string as necessary by using the forward password recognition system as shown in the fifth embodiment. May be sent.

[0067]

As described above, according to the present invention, by using a double-byte character string such as hiragana, katakana, or kanji as the password of the authentication system, the number of types of character strings that can be used for the password is dramatically increased. Security features are improved.
In addition, it is not necessary to switch between full-width and half-width input at the time of inputting a password, thereby improving convenience.

[Brief description of the drawings]

FIG. 1 is a block diagram of a password input system according to a first embodiment.

FIG. 2 is a block diagram of a password input system according to a second embodiment;

FIG. 3 is a block diagram of a password input system according to a third embodiment;

FIG. 4 is a block diagram of a portable information terminal according to a fourth embodiment.

FIG. 5 is a block diagram of a portable information terminal according to a fifth embodiment.

FIG. 6 is a block diagram of a portable information terminal according to a sixth embodiment.

FIG. 7 is a block diagram showing functions of a net financial system according to a seventh embodiment.

FIG. 8 is a schematic diagram of a configuration information terminal according to the first embodiment.

[Explanation of symbols]

 Reference Signs List 100 Key input unit 101 Kana-Kanji conversion unit 102 Input confirmation unit 103 Password recognition unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06F 15/00 330 G06F 15/00 330B 17/21 570 17/21 570M

Claims (13)

[Claims] 1. A password input system for inputting a character string including full-width characters as a password to a password recognition unit. 2. The password input system according to claim 1, wherein a password including at least one of kanji, hiragana, and katakana is input to the password recognition unit. 3. A hiragana input unit for inputting a hiragana character string, a kana-kanji conversion unit for converting at least a part of the input hiragana into kanji or katakana, and a password recognition unit for recognizing the input character string as a password. Password input system having a. 4. A katakana input unit for inputting a katakana character string, a kana-kanji conversion unit for converting at least a part of the input katakana into kanji or hiragana, and a password recognition unit for recognizing the input character string as a password. Password input system having a. 5. The password input system according to claim 1, wherein the color information included in the character string is included in the password information. 6. A half-width conversion unit having the password input system according to claim 1, wherein the half-width conversion unit converts an input password into a half-width character string password, and converts the converted password over a network. A portable information terminal having a transmission unit for transmitting to a connected password recognition system. 7. A portable information terminal comprising the password input system according to claim 1 and a transmitting unit for transmitting a password, wherein the password recognition system for a password destination connected via a network is provided by a portable terminal. A portable information terminal having a destination password recognition unit that is recognized on the information terminal side. 8. The portable information terminal according to claim 7, further comprising a password conversion unit that converts a password to be sent according to the password recognition system of the password destination. 9. The password conversion unit converts a full-width character string of a character string input as a password into a half-width character string when the password destination system recognizes only a half-width character string as a password. The portable information terminal according to claim 8, wherein: 10. A portable information terminal which accesses the information stored in the portable information terminal by using the password input system according to claim 1. Description: 11. In a net financial system in which a portable information terminal is connected to a financial system on a network, when a user of the portable information terminal accesses a financial account,
An internet finance system using the password input system according to any one of claims 1 to 5. 12. The internet financial system according to claim 11, wherein said portable information terminal has a virtual money function for exchanging virtual money with said financial account. 13. The online financial system according to claim 12, wherein said portable information terminal has a telephone function.