KR20100016729A - The apparatus and method of code by long input and short input - Google Patents

Abstract

PURPOSE: A device and a method for encrypting a number key are provided to maintain a high security level by increasing the case number of a password corresponding to the number of digits. CONSTITUTION: A key input unit(10) receives a key input as an electric signal by operating the key of keypad. A counter unit(20) counts an input time. The counter unit tabulates the key input according to an input sequence. An encoder unit(30) encrypts a password by inserting a variable length flag in order to safely store a password. The encoding unit stores the encrypted password in a password table. A decoding unit(40) decodes a value saved in the password table. A micom unit(50) assigns a control signal to each instrument. The micom unit stores the encrypted password in the password table. The micom part initializes a system.

Description

TECHNICAL APPARATUS AND METHOD OF CODE BY LONG INPUT AND SHORT INPUT

The present invention is an encrypted table that receives the input of the key as long-term input (-) and short-term input (·), such as the Morse code for the password of numbers and characters used in the password key, bank ATM, computer password, etc. Compared with the present invention, the present invention relates to an encryption device and method using a secure password even against a leak of a password or hacking of a password table.

Recently, with the rapid development of computer communication networks, techniques for encrypting important information such as personal privacy and e-commerce history have been devised and used.

Encryption methods can be classified into a secret key encryption method for performing encryption and decryption using the same key (secret key) and a public key encryption method for encrypting using a public key and decrypting using a private key.

In the case of public key cryptography, the computational speed of encryption / decryption is much slower than that of secret key cryptography and requires a lot of system resources.

In the case of secret key encryption method, in order to secure the confidentiality according to encryption, not only should the secret key be exposed to third parties other than the communication parties, but also when one party to exchange information is N, one additional member N Since additional private keys are needed (only a pair of public and private keys are added in the case of the public key cryptosystem), there is a problem that it becomes difficult to manage the private keys.

In particular, the elderly and children, if the password is long, there was a problem that it is difficult to memorize the password.

In addition, the password is managed as a password table using a DB. If a password table is leaked due to hacking, it can cause enormous damage.

In order to solve the above problems, in the present invention, it is easy to remember the encryption key, can maintain a high security level, and the encryption device and method of the number key using the long input, short input that can be used compatible with the existing locking means and Its purpose is to provide a more secure password system that encrypts passwords and stores them in tables.

In order to achieve the above object, an encryption apparatus for a number key using long input and short input according to the present invention,

A key input unit 10 capable of receiving keys of numbers and characters from the keypad,

A counter unit 20 for counting an input key press time using an internal clock and quantizing the input key with a long input and a short input accordingly;

Encoder 30 for generating an encrypted password by encoding a signal in which the long input short input is separated during password input and

A decoding unit 40 for decoding the encrypted password to compare the quantized input signal with the input password;

It is achieved by controlling the decoding and encoding of the password, storing the encoded password, and confirming the password match in the password comparison decision operation, and then the microcomputer unit 50 which turns on the operation state display lamp for a certain time and performs opening and closing of the locking means. .

Further, the encryption method of the number key using the long input or short input according to the present invention,

Setting a password by pressing a long input and a short input according to a desired input pattern through a key input unit (S100);

The counter detects the key input and counts the input time by comparing with the internal clock.If the long input is counted, the counter indicates the long input display subscript (-). And displaying the table according to the input order (S200),

Inserting a variable length flag (Flag) into a password consisting of a long input and a short input at a counter through an encryption conversion program of the encoding unit, and encrypting the stored password in a cipher table (S300);

Performing a task of reading and decrypting a password from an encryption table stored through an encoding unit in the decoding unit 40 (S400);

Under the control of the microcomputer unit, after the encoding operation, the encrypted password is stored in the encryption table, and the decrypted unit 40 compares the decrypted password with the input password to determine whether it is TRUE or FALSE, TRUE) is achieved by outputting a lock release signal, and if false (FALSE) to inform the alarm that the input is wrong, and to initialize the system (S500).

As described above, in the present invention, it is easy to remember the encryption key, it is possible to maintain a high security level, there is a good effect that can be used compatible with the existing locking means.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 is a block diagram showing the components of an encryption device for a number key using a long input / short input according to the present invention, which includes a key input unit 10, a counter unit 20, an encoder unit 30, The decoder 40 and the microcomputer 50 are comprised.

The key input unit 10 is a place for receiving a key input by an electric signal by operating the keys of the keypad, which consists of a keypad consisting of numbers and letters, special characters used in password keys, bank ATMs, computer passwords, etc. In general, the high (1) signal is maintained, and when there is a button input, the low (0) signal is generated to display the key input.

The counter unit 20 detects a key input and counts the input time through comparison with an internal clock. If the long input is a counted key input, the counter 20 displays a long input display subscript (-). It is displayed as a subscript (·) for display and serves as a table according to the input order.

The time counted by the counter unit is divided into 1 second or less and 1 second or more, and is quantized as a short input for 1 second or less and a long input for 1 second or more. The encryption method using long input and short input increases the number of cases by the product of 2 ^ N for a N-digit cipher.

As an example, assume a 4-digit cipher of 1,1,1,1. According to the conventional method, security is difficult because only one case exists when a password is leaked. However, in the counter unit according to the present invention, the key input counted for more than 1 second among the key input buttons is indicated by a long input display subscript (-), and the key input counted for less than 1 second among the key input buttons is short-input. It can be displayed as a display subscript (·) and then listed as a table in the input order.

That is, as shown in Table 1, in the encryption method using long input (-) and short input (·), there are 16 cases in which the number of cases by the product of 2 ^ 4 for a cipher having four digits exists. This can increase the level of security.

One 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (·) (·) (·) (·) (·) (·) (·) (·) (-) (-) (-) (-) (-) (-) (-) (-) (·) (·) (·) (·) (-) (-) (-) (-) (·) (·) (·) (·) (-) (-) (-) (-) (·) (·) (-) (-) (·) (·) (-) (-) (·) (·) (-) (-) (·) (·) (-) (-) (·) (-) (·) (-) (·) (-) (·) (-) (·) (-) (·) (-) (·) (-) (·) (-)

The encoding unit 30 inserts and encrypts a variable length flag (Flag) into a password composed of long input and short input through a counter, and stores the encrypted length in a cipher table.

It encrypts passwords so that they can be secured even if the password database or password table is leaked.

That is, as an input method including a flag indicating a variable length in order to encrypt a password, an encryption conversion program is built in such a way that the interval of the variable length flag changes according to the input form of the first password.

If the flag is 0 with 4 digits specified, the cryptographic conversion program performs real data with the 4 digits after the flag, and if the flag is 1, the AND operation is performed with the 4 bits after the flag. To ensure that the data is a password. The short input is represented by '0' and the long input is represented by '1'. If the first password is a short input, the flag is included at intervals of four digits, or if the first password is a long input, the flag is set at intervals of six digits.

In addition, the flag is set to 1 when there is continuous data in the cipher following the first cipher, and 0 when there is no continuous data.

As shown in FIG. 3, after a variable length flag (Flag) is inserted into a password consisting of a long input and a short input in a counter through an encryption conversion program of an encoding unit according to the present invention, the process is stored in an encryption table. Explain.

First, it is checked whether the first password is a short input or a long input (S310).

That is, if the first password is a short input, the flag is included at intervals of four digits, or if the first password is a long input, the flag is set at intervals of six digits.

Subsequently, it is checked whether the password following the first password is continuous data (S320).

The password following the first password is set to 1 if there is continuous data, and 0 if there is no continuous data.

Subsequently, if the flag is 0 while the number of digits is set to 4 or 6 digits, the 4 digits and 6 digits after the flag become actual data (S330).

Subsequently, if the following flag is 1, the bit after the flag and the actual data are ANDed (S340).

Subsequently, the result data obtained after the AND operation is a password, wherein the input is represented by '0' and the long input is represented by '1' (S340).

For example, if a four-digit password of 1 (·), 1 (-), 1 (-), 1 (·) is to be stored in the password table, a password table is formed as shown in Table 2 below.

Encode One 0 One One One 0 0 One One 0 0 0 One One 0 AND F F 0 One One One F Result data 0 One One 0 0 One One 0 password (·) (-) (-) (·) (·) (-) (-) (·)

In addition, when the first input is a long input such as 1 (-), 1 (·), 1 (-), 1 (·), the password stored in the password table is shown in Table 3 below.

Encode 0 One 0 One 0 0 0 One One One One One 0 0 0 One 0 One 0 0 0 AND F F F One One One One 0 0 Result data One 0 One 0 0 0 One 0 One 0 0 0 password - · - · - · - ·

In the case of the password table, the password using the same number of 1,1,1,1 is stored in the password table as 101110011000110 and 010100011111000101000 according to the input type of the first one digit so that the password cannot be decrypted even if the password table is leaked. do.

The decoding unit 40 reads the password from the stored encryption table and decrypts it.

As shown in FIG. 4, the decoding unit according to the present invention decrypts data stored in an encryption table through control of a decoding controller.

First, the initial temporary buffer is initialized (S410).

Subsequently, the decoder controller checks the initialization of the temporary buffer and reads the corresponding bit from the encryption table according to the set number of bits (S420).

It is assumed here that it is set to 5 bits.

Subsequently, flags and data are classified according to the number of cipher bits through control of the decoder controller (S430).

In this case, it is assumed that flags and data are classified in 5 bits under the control of the decoder controller.

Subsequently, if the temporary buffer is empty, the data is stored in the temporary buffer, and if there is data in the temporary buffer, the current data and the data of the temporary buffer are ANDed and updated in the temporary buffer (S440).

Subsequently, if the next flag bit is 1, the bit below the flag is read from the cipher table, and if there is data in the temporary buffer, the current data and the data of the temporary buffer are ANDed to update the temporary buffer. The process is repeated until the flag bit becomes 0 (S450).

At this time, if the following flag bit is 1, the above operation is repeated.

Subsequently, if the following flag bit is 0, the data of the current temporary buffer is added to the cipher variable, the temporary buffer is initialized, and the encryption decryption operation is completed by checking whether data remains in the encryption table. (S460).

That is, if the following flag bit is 1 and 5 more bits are left, 5 bits of current data is read, and the AND operation is performed on the data of the current data and the temporary buffer. As a result, the data is added as an encryption variable to complete the encryption decryption operation.

For example, if a cipher of 10111 □ 10100 □□ 10111 □□ 01101 is entered into a decoding system designed at 4-bit intervals, the decoder checks whether data exists in the temporary buffer.

At this time, if there is no data, '0111' is stored in the temporary buffer and the next flag bit is read.

Because the flag bit is 1, the decoder reads the next 5 bits and retrieves the data in the temporary buffer.

Since '0111' data exists in the temporary buffer, the decoder performs a logical AND operation on the current data '0100' and the temporary buffer data '0111'.

The result of the operation, '0100', is stored in the temporary buffer again, and the decoder reads 5 bits again because the next flag bit is 1.

Also, since there is '0100' data in the temporary buffer, '0100' and '0111' are ANDed, and the result value '0100' is stored in the temporary buffer, and the next flag bit is 1. Read 5 bits again.

An AND operation of '0100' and '1101' stored in the temporary buffer is performed, and as a result, the data '0100' is stored in the temporary buffer.

However, the decoder confirms that the flag is 0, moves data from the temporary buffer to the encryption buffer, and initializes the temporary buffer.

At this time, '0100' becomes a password.

The microcomputer 50 stores the password encrypted by the encoding unit 30 in an encryption table, compares the password decrypted by the decoding unit 40 with the input password to determine TRUE or FALSE, and locks if TRUE. It outputs the dismantling signal, and if it is FALSE, it notifies that the input is wrong with a warning sound and initializes the system.

It is composed of PIC16C711, one of the PIC one chip microcomputer, the encoder is connected to one side of the input terminal, the encoder controls to store the encrypted password in the encryption table, the decoder is connected to one side of the input terminal, decrypted by the decoding unit The password is entered.

The microcomputer according to the present invention compares the password decrypted by the decoding unit 40 and the input password therein with a comparison determination unit for determining TRUE or FALSE and the comparison determination unit, as a result of the TRUE unlocked signal Is outputted, and if it is FALSE, an operation part is configured to notify that the input is wrong and to initialize the system.

Hereinafter, a method of encrypting a number key using long input or short input according to the present invention will be described.

The present invention is to maintain the high security state by increasing the number of cases for the password corresponding to the number of digits, so that even if the password is leaked using the long input and short input to the password input can not be opened if you do not know the input pattern It is about encryption method.

For example, a password consisting of a sequence of four numbers 1,2,3,4. However, in the case of a conventional key cipher, the number of cases is 10X10X10X10, but there are 10,000 cases. If you do, you get 160,000 cases of 10X10X10X10X2 ^ 4. This results in a number larger than 100,000, which is possible with a five-digit cipher.

2 is a flowchart illustrating a process of encrypting a number key using long input or short input according to the present invention.

First, a password is set by pressing a long input and a short input according to an input pattern desired by a user through a key input unit (S100).

Subsequently, the counter detects the key input and counts the input time by comparing with the internal clock.If the long input is counted among the counted key inputs, the counter is displayed with a long input display subscript (-). After displaying the subscript (·), the table is tabled according to the input order (S200).

Subsequently, a variable length flag (Flag) is inserted into the password consisting of a long input and a short input in the counter unit through an encryption conversion program of the encoding unit, encrypted, and then stored in the cipher table s (300).

Here, if the flag is 0 in the state where the digit conversion program is set to 4 digits, the 4 digits after the flag are the actual data, and if the flag is 1, the AND is followed by the 4 bits. Perform the operation, and make sure the data is a password as a result. The short input is represented by '0' and the long input is represented by '1'. If the first password is a short input, the flag is included at intervals of four digits, or if the first password is a long input, the flag is set at intervals of six digits.

In addition, the flag is set to 1 when there is continuous data in the cipher following the first cipher, and 0 when there is no continuous data.

Subsequently, the decoding unit 40 reads the password from the encryption table stored through the encoding unit and decrypts it (S400).

In other words, in order to compare and compare the input signals, the microcomputer executes a decoding routine to decode the password from the password table.

Subsequently, a comparison between the input password and the decoded password inputted by the microcomputer unit is performed, and when the encryption keys coincide, the operation state display lamp is turned on for a predetermined time and controlled to output an open / close permission signal to the locking means (S500).

1 is a block diagram showing the components of an encryption apparatus for a number key using a long input / short input according to the present invention;

2 is a flowchart illustrating a method of encrypting a number key using long / short input according to the present invention;

3 is a flowchart illustrating a process of inserting and encrypting a variable length flag (Flag) into a password consisting of long input and short input in a counter through an encryption conversion program of an encoding unit according to the present invention, and then storing the encrypted length in a cipher table.

4 is a flowchart illustrating a process of inserting and encrypting a variable length flag (Flag) in a password consisting of long input and short input at a counter through an encryption conversion program of the encoding unit according to the present invention, and then storing the encrypted password in a cipher table.

5 is a flowchart illustrating a process of reading and decrypting a password from a cipher table stored through an encoding unit in the decoding unit 40 according to the present invention.

※ Brief description of drawing code ※

10: key input unit 20: counter unit

30: encoder portion 40: decoder portion

50: microcomputer unit

Claims (5)

A device for encrypting with passwords, bank ATMs, numbers and letters used for computer passwords, The encryption device includes a key input unit 10 for receiving a key input by an electric signal by operating a key of the keypad; Detect key input and count the input time by comparing with internal clock.If long input among counted key inputs, long input is indicated by subscript (-) and short input is indicated by subscript (·) A counter unit 20 which displays and tabulates the table according to the input order; Encoding unit 30 for encrypting the password by inserting a variable length flag (flag) for safe storage of the password stored in the encryption table (Table), Decoding unit 40 for decrypting the value stored in the encryption table (Table) in order to judge the input password, The control signal is assigned to each device, the encrypted password is stored in the encryption table after the encoding operation, and it is determined whether it is TRUE or FALSE by comparing the decrypted password with the input password in the decoding unit 40. And TRUE, outputs a lock release signal; if FALSE, the input unit is characterized in that it comprises a micom unit 50 for initializing the system with a warning sound indicating that the input is wrong. Encryption device for number key using input. Setting a password by pressing a long input and a short input according to a desired input pattern through a key input unit (S100); The counter detects the key input and counts the input time by comparing with the internal clock.If the long input is counted, the counter indicates the long input display subscript (-). And displaying the table according to the input order (S200), Inserting a variable length flag (Flag) into a password consisting of a long input and a short input at a counter through an encryption conversion program of the encoding unit, and encrypting the stored password in a cipher table (S300); Performing a task of reading and decrypting a password from an encryption table stored through an encoding unit in the decoding unit 40 (S400); Under the control of the microcomputer unit, after the encoding operation, the encrypted password is stored in the encryption table, and the decrypted unit 40 compares the decrypted password with the input password to determine whether it is TRUE or FALSE, TRUE) outputs a lock release signal, and if false (FALSE) to inform the alarm that the input is wrong, and initializes the system (S500) characterized in that the key input using the long input, short input Encryption method. The method of claim 2, wherein the setting of the password by pressing the long input and the short input according to the input pattern desired by the user through the key input unit (S100) comprises a repeating pattern having a rhythm familiar to the user. Encryption method of number key using single input. 3. The method of claim 2, wherein after inserting and encrypting a variable length flag (Flag) in a password having a long input and a short input at a counter through an encryption conversion program of the encoding unit, storing in a cipher table (S300), Checking whether the first password is a short input or a long input, and if the first password is a short input, a flag is included at intervals of four digits, or if the first password is a long input, the flag is set at a six digit interval (S310); Checking whether or not the password following the first password is continuous data, and setting it to 1 if the password following the first password is continuous data, and setting it to 0 if there is no continuous data (S320); If the flag is 0 when the number of digits is set to 4 or 6 digits, step S330 in which 4 and 6 digits after the flag become actual data; If the flag is 1, the bit after the flag and the actual data perform an AND operation (S340); The result data obtained after the AND operation is a password, the short input is represented by '0', and the long input is represented by '1' (S350). Encryption method The method of claim 2, wherein the decoding unit 40 reads the password from the encryption table stored through the encoding unit and decrypts the password in operation S400. Initializing the temporary buffer (S410), Checking the initialization of the temporary buffer by the decoder controller and reading the corresponding bit from the encryption table according to the set number of bits (S420); Classifying flags and data according to the number of cipher bits through control of the decoder controller (S430); If the temporary buffer is empty, the data is stored in the temporary buffer, and if there is data in the temporary buffer, updating the temporary buffer by ANDing the current data and the data of the temporary buffer (S440); If the next flag bit is 1, the bit below the flag is read from the encryption table, and if there is data in the temporary buffer, the process of updating the temporary buffer by ANDing the current data and the data in the temporary buffer is performed. Repeating until the flag bit becomes 0 (S450), If the following flag bit is 0, adding the data of the current temporary buffer to the encryption variable, initializing the temporary buffer, and checking whether or not data remains in the encryption table to complete the encryption / decryption operation ( S460), the encryption method of the number key using the long input, short input, characterized in that.

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