CN103391195B - A kind of method of work of dynamic token - Google Patents

Abstract

The invention discloses a working method of a dynamic token, which relates to the field of information security, including judging the wake-up type when the dynamic token is woken up, and setting the system state to a corresponding state according to the type of the pressed key if it is a key-press wake-up; If it is other wake-up, judge the type of the system state, if it is to generate the login password state, generate and output the login password according to the key and the current time, set the system state to display the login password state, and set the input data length to the initial value; In order to process the first information state, then generate the first password and output it according to the first information of the key, current time and input, set the system state to display the first password state, and set the input data length to the initial value. The second information state processes the input second information, generates and outputs a second password according to the processing result, key and current time, sets the system state to display the second password state, and sets the input data length to an initial value.

Description

A way of working with dynamic tokens

technical field

The invention relates to the field of information security, in particular to a working method of a dynamic token.

Background technique

A dynamic token is a terminal used to generate a dynamic password. The dynamic password can confirm the legal identity of the user, thereby ensuring the security of the user's business access on the basis of the user logging in with a legal identity. Dynamic password authentication technology is considered to be one of the most effective ways to solve user identity authentication at present, so it is widely used in various information system scenarios such as banking, securities, third-party payment, and large enterprises. In the existing technology, as long as you log in to various information system scenarios through a dynamic password, you can operate all items in the information system scenario. Malicious people can illegally operate the information system scenario while the user is away. Less security.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a working method of a dynamic token, which can improve the security of logging into the information system scene and continuing operations.

The present invention provides a working method of a dynamic token, including:

Step S1: The dynamic token is powered on and initialized;

Step S2: The dynamic token opening key is interrupted, and the token state is set to a dormant state;

When the dynamic token is awakened, step S3 is executed;

Step S3: Determine whether it is a key-press wake-up, if yes, execute step S4, otherwise execute step S14;

Step S4: Turn off the button interrupt;

Step S5: Scan the key to obtain the key value and judge the type of the pressed key according to the key value. If it is a confirmation key, execute step S6. If it is a number key, execute step S9. If it is a login key, execute step S12; if it is a payment key key then execute step S13;

Step S6: Determine the type of system state, if it is the state of inputting the first information, execute step S7, if it is the state of inputting the second information, execute step S8;

Step S7: Set the system state as the state of processing the first information, and execute step S14;

Step S8: Set the system status as the status of processing the second information, and execute step S14;

Step S9: Determine the type of the system state, if it is the first type of state, execute step S10, if it is the second type of state, set the system state to the standby state, and execute step S14; the first type of state is the standby state or power on Input password status or modify input password status or input new password status for the first time or second input new password status or input activation code status or input first information status or input second information status or input unlock code status; The second type of status is to display the status of the login password or to display the status of the first password or to display the status of the second password;

Step S10: Store the number sequence corresponding to the number key into the data buffer area, update the input data length according to the first preset method, and execute step S11;

Step S11: Determine whether the system state is in standby state, if yes, set the system state as the state of inputting the first information, and execute step S14; otherwise, execute the corresponding operation;

Step S12: Determine whether the system state is the third type of state, if so, set the system state to the state of generating a login password, and execute step S14; otherwise, perform the corresponding operation; the third type of state is the state of displaying the first password or the state of displaying the second password. password status;

Step S13: judging whether the system status is the standby status, if yes, set the system status as the second information input status, and execute step S14, otherwise, execute the corresponding operation;

Step S14: Determine the type of the system state, if the system state is the state of generating a login password, then execute step S15, if the system state is the state of processing the first information, then execute step S16, if the system state is the state of processing the second information, then execute step S17; If the system state is the fourth type of state, return to step S2; the fourth type of state is the standby state or the state of inputting the first information or the state of inputting the second information;

Step S15: Generate and output the login password according to the current time of the key and the dynamic token, set the system status to display the login password status, set the input data length to the initial value, and return to step S2;

Step S16: Generate and output the first password according to the key, the current time of the dynamic token and the first input information, set the system state to display the first password state, set the input data length to the initial value, and return to step S2;

Step S17: Process the input second information, generate and output the second password according to the processing result, the key and the current time of the dynamic token, set the system status to display the second password status, and set the input data length to initial value, return to step S2.

Further, in the step S3, judging whether it is a key-press wake-up is specifically: judging whether a key-press wake-up flag is set, if yes, it is a key-press wake-up, otherwise it is not a key-press wake-up.

Further, in the step S5, scanning the key to obtain the key value and judging the type of the pressed key according to the key value include:

Step A0: Determine whether the pressed key is a number key or a decimal point key or a function key, if so, set the initial value of the automatic shutdown timer as the automatic shutdown time, and perform step A1, otherwise perform step S14; the function keys include On/off key, confirmation key, delete key, login key and payment key;

Step A1: Determine the current processing state, if it is the first processing state, execute step A2, if it is the second processing state, execute step A3, if it is the third processing state, execute step A4, if it is other, continue;

Step A2: Set the system state to the state of entering a new password for the first time, and execute step S14;

Step A3: Set the system status to the password input status when powering on, and execute step S14;

Step A4: Set the system state to the state of modifying and entering the password, and execute step S14.

Further, when the system state is the new password error state and the pressed key type is not the power on/off key, the current processing state is the first processing state; when the system state is the power-on password error state and the pressed key type When the type is not the on/off key, the current processing state is the second processing state; when the system state is the error state of changing the password and the type of the pressed button is not the on/off key, the current processing state is the third processing state .

Further, the step S14 also includes:

If it is the state of entering a new password for the first time or the state of entering a password when starting up or modifying the state of entering a password, then return to step S2.

Further, the step S5 also includes: if the type of the pressed key is an on/off key, then execute step B1;

Step B1: Determine whether there is a seed stored in the dynamic token, if so, execute step B2, otherwise perform a self-check on the display screen and set the system status to shutdown, and execute step S14;

Step B2: Determine whether the system state is off, if yes, execute step B3, otherwise set the system state to switch to off state, and execute step S14;

Step B3: Determine whether the time the button is pressed exceeds the preset duration, if yes, clear the data buffer area, initialize the display screen, and execute step B4; otherwise, execute step S14;

Step B4: Determine whether the status of the token is self-destructing, if yes, set the system status to the status of token scrapping, and execute step S14; otherwise, execute step B5;

Step B5: Determine whether the status of the token is activated, if so, execute step B6, otherwise set the system status as the status of inputting the activation code, and execute step S14;

Step B6: Determine whether the status of the token is locked, if yes, set the system status to the status of inputting the unlock code, execute step S14, otherwise execute step B7;

Step B7: Determine whether the dynamic token has been set with a password, if so, set the system state to the state of entering the password at power-on, and execute step S14; otherwise, set the system state to the state of entering a new password for the first time, and execute step S14.

Further, in the step B4, judging whether the status of the token is self-destructing is specifically: judging whether the self-destructing flag is set, if yes, the status of the token is self-destructing, otherwise the status of the token is normal;

In the step B5, judging whether the token state is activated is specifically: judging whether the activation flag is set, if yes, the token state is activated, otherwise the token state is inactive.

Further, the step S14 also includes:

If it is in the shutdown state or the state of entering the activation code or the state of entering the unlock code or the state of token scrapping, then return to step S2;

If it is to switch to the shutdown state, set the system state to the shutdown state, turn off the display screen, and return to step S2.

Further, the step S5 also includes: if the type of the pressed key is a decimal point key, then execute step P1,

Step P1: Determine whether the system state is the fifth type of state, if yes, execute step P2, otherwise execute step S14; the fifth type of state is the test state or standby state or the state of inputting the first information or the state of inputting the second information;

Step P2: Store the decimal points in the data buffer in sequence, update the input data length according to the first preset method, and execute step P3;

Step P3: Determine whether the system state is the standby state, if yes, set the system state to the state of inputting the first information, execute step S14, otherwise execute step S14.

Further, the initial value of the input data length is 0; the updating of the input data length according to the first preset method specifically includes: adding 1 to the input data length.

Further, the step S14 also includes: if the first information status is input, return to step S2.

Further, the step S5 also includes: if the type of the pressed key is a delete key, then execute step Q1,

Step Q1: Determine whether the input data length is the initial value, if yes, execute step Q2, otherwise execute step Q5;

Step Q2: judging whether the system state is the state of inputting the second information or the state of the second type, if yes, set the state of the system to the standby state, execute step S14, otherwise execute step Q3; the state of the second type is the state of displaying the login password or Display the first password status or the second password status;

Step Q3: Determine whether the system status is standby, if yes, execute step Q4, otherwise execute step S14;

Step Q4: Determine whether the time the button is pressed exceeds the preset duration, if so, set the system status to the status of modifying the input password, and execute step S14; otherwise, execute step S14;

Step Q5: Determine whether the system state is the sixth type of state, if yes, delete the last stored data in the data buffer, update the length of the input data according to the second preset method, execute step Q6, otherwise execute step Q8; the sixth The state is the state of entering the password at startup or modifying the state of entering the password or the state of entering the new password for the first time or the state of entering the new password for the second time or the state of entering the activation code or the state of entering the first information or the state of entering the second information or the state of entering the unlock code ;

Step Q6: Determine whether the system state is the state of inputting the first information, if yes, execute step Q7, otherwise execute step S14;

Step Q7: Determine whether the length of the input data is the initial value, if yes, set the system state to the standby state, and execute step S14; otherwise, execute step S14;

Step Q8: Determine whether the system status is the button test status, if yes, prompt a failure message, and go to step S14; otherwise, go to step S14.

Further, the initial value of the input data length is 0; the updating of the input data length according to the first preset method is specifically: adding 1 to the input data length; the updating of the input data according to the second preset method The data length is specifically: the input data length is reduced by 1.

Further, the step S6 also includes: if the system state is the state of entering a new password for the first time, then execute step C1, if the system state is the state of entering a new password for the second time, then execute step C2, if the system state is the state of entering a password when starting up Then execute step C3, if the system state is the button test state then execute step C4; if it is other then execute step S14;

Step C1: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system status to the state of processing the first input of a new password, and execute step S14; otherwise, execute step S14;

Step C2: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system state to process the second input of a new password, and execute step S14; otherwise, execute step S14;

Step C3: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system status to the status of processing the power-on password, and execute step S14; otherwise, execute step S14;

Step C4: A success message is prompted, and step S14 is executed.

Further, the step S14 also includes:

If the system state is the seventh type of state, then judge whether the data in the data buffer area is identical with the new password of the second input of preservation, if yes, execute step H1, otherwise execute step H3; password status or handle changing password status;

Step H1: Set the number of wrong password input times as the initial value, set the automatic unlocking counter as the number of automatic unlocking times, set the automatic unlocking timer as the automatic unlocking period, and execute step H2;

Step H2: Determine whether the system state is the state of processing the power-on password, if so, set the system state to the standby state, set the input data length to the initial value, and execute step S14, otherwise set the system state to the state of entering a new password for the first time, Set the input data length as an initial value, and execute step S14;

Step H3: Update the number of incorrect passwords entered, prompting that the power-on password is incorrectly input, display the number of incorrect passwords entered on the display screen, and execute step H4;

Step H4: Determine whether the number of wrong password input is equal to the preset number of retries, if yes, execute step H5, otherwise execute step H6;

Step H5: Set the status of the token as locked, set the status of the system as the status of inputting the unlock code, set the length of the input data as the initial value, and return to step S2;

Step H6: Determine whether the system state is the state of processing the power-on password, if so, set the system state to the state of the power-on password error, set the length of the input data to the initial value, and return to step S2, otherwise set the system state to the state of changing the password error, set The length of the input data is set to the initial value, and return to step S2.

Further, the step S9 also includes: if the system status is shutdown status, then judge whether there is a seed stored inside the dynamic token, if yes, set the system status as a test status, and execute step S14, otherwise, directly execute step S14.

Further, the execution of the corresponding operation in step S11 includes: if the system state is the activation code input state, then execute step D1; if the system state is the unlock code input state, then execute step D2; if the system state is the modification input password state, then execute Step D3; if the system state is the state of entering a new password for the first time, execute step D5; if the system state is the state of entering a new password for the second time, execute step D7; if it is other, execute step S14;

Step D1: Judging whether the length of the input data is equal to the first value, if yes, set the system state to verify the activation code state, and execute step S14; otherwise, execute step S14;

Step D2: Determine whether the length of the input data is equal to the second value, if yes, set the system state to the state of processing the unlock code, and execute step S14; otherwise, execute step S14;

Step D3: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D4, otherwise execute step S14;

Step D4: Determine whether the dynamic token has been set with a password, and if so, set the system state to the status of processing and modifying the password, and execute step S14; otherwise, execute step S14;

Step D5: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D6, otherwise execute step S14;

Step D6: Determine whether a password has been set for the dynamic token, if so, set the system state to process the first input of a new password, and execute step S14; otherwise, execute step S14;

Step D7: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D8, otherwise execute step S14;

Step D8: Determine whether a password has been set on the dynamic token, if yes, set the system state to process the second input of a new password, and execute step S14, otherwise execute step S14.

Further, the judging whether the dynamic token has been set with a password specifically includes: judging whether the password flag is set, if yes, the dynamic token has been set with a password, otherwise, the dynamic token has not been set with a password.

Further, the step S14 also includes:

The fourth type of state is the state of inputting the first password or the state of testing or processing and modifying the password;

If the system status is verifying the activation code status, then judge whether the data in the data cache area is the correct activation code, if so, update the key, set the token status as activated, prompt that the activation is successful, and set the system status as the first time Enter the new password state, set the input data length as the initial value, and return to step S2; otherwise, it prompts that the activation fails, set the system state as the input activation code state, set the input data length as the initial value, and return to step S2;

If the system state is processing the unlock code state, then judge whether the data in the data cache area is the correct unlock code, if yes, it will prompt that the unlock is successful, set the token state to unlock, clear all saved passwords, and set the system state to the first In the state of entering a new password once, set the number of wrong passwords entered and the length of the input data to the initial value, and return to step S2; otherwise, it will prompt that the unlocking fails, turn off the display, set the system state to the shutdown state, and set the length of the input data to the initial value value, return to step S2;

If the system state is the state of processing the new password input for the first time, then save the data in the data buffer area as the new password entered for the first time, set the system state to the state of entering the new password for the second time, and set the input data length to initial value, return to step S2;

If the state of the system is to process the state of entering a new password for the second time, then it is judged whether the data in the data buffer is identical to the new password input for the first time saved, if so, step E1 is executed, otherwise step E2 is executed;

Step E1: Save the data in the data buffer area as the new password entered for the second time, prompting that the new power-on password is entered correctly, set the system state to the standby state, set the input data length to the initial value, and return to step S2;

Step E2: Prompt that the new power-on password is entered incorrectly, set the system state as the new password error state, set the input data length as the initial value, and return to step S2.

Further, setting the status of the token as activated is specifically: setting the activation flag; setting the status of the token as unlocked is specifically: resetting the lock flag.

Further, the initial value of the number of times of wrong password input is 0; the update of the number of times of wrong password input is specifically: the number of times of wrong password input is incremented by 1.

Further, performing the corresponding operation in step S12 includes: if the system state is the test state, then output the first character through the display screen, and execute step S14; if it is otherwise, execute step S14.

Further, the execution of the corresponding operation in step S13 includes: if the system state is the test state, then outputting the second character through the display screen, then performing step S14, and if it is otherwise, then performing step S14.

Further, generating the login password in the step S15 specifically includes: calculating the key and the current time of the dynamic token according to a preset login algorithm to obtain the login password.

Further, generating the first password in step S16 specifically includes: calculating the key, the current time of the dynamic token, the input first information and the event factor according to the preset account algorithm to obtain the first password.

Further, generating the second password in the step S17 specifically includes: calculating the key, the current time of the dynamic token, the processing result and the event factor according to the preset payment algorithm to obtain the second password.

Compared with the prior art, the present invention has the following advantages:

The dynamic token of the present invention can generate three kinds of passwords: a login password, a first password and a second password. When operating in a login information system scenario, it is first necessary to verify the identity of the user through the login password. If the project or the second project continues to operate, it is necessary to enter the first password or the second password for verification, to prevent illegal operations by malicious people, and to enhance the application security of information system scenarios.

Description of drawings

Figures 1-2 are flowcharts of the working method of the dynamic token provided by the embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

The embodiment of the present invention provides a working method of a dynamic token, as shown in Fig. 1-Fig. 2, including:

Step 101: The dynamic token is powered on and initialized;

Initialization in the present embodiment includes system clock setting, IO initialization setting, RTC setting and input variable, system state variable, automatic shutdown variable etc. are initialized;

Step 102: Turn on the interrupt, and set the token status to dormant status;

Interrupts in this embodiment include key interrupts and global interrupts;

When the dynamic token is awakened, start to execute step 103;

Step 103: Determine whether it is a key-press wake-up, if yes, execute step 104, otherwise execute step 114;

Judging whether it is a key-press wake-up is specifically: judging whether the key-press wake-up flag is set, if it is, it is a key-press wake-up, otherwise it is not a key-press wake-up;

In this embodiment, if a key trigger is received, enter the key interrupt processing, and the key interrupt processing includes: setting the key wake-up flag, and exiting the key interrupt;

Step 104: Turn off the button interrupt;

In this embodiment, step 104 also includes setting the initial value of the automatic shutdown timer as a predetermined shutdown time value, and starting the timer; when the value of the timer is 0, the dynamic token automatically shuts down;

Step 105: Scan the key to obtain the key value and judge the type of the pressed key according to the key value. If it is a confirmation key, then perform step 106. If it is a number key, then perform step 109. If it is a login key, then perform step 112; if it is a payment key key then execute step 113;

Step 106: Determine the type of the system status, if it is the input of the first information status, then execute step 107, if it is the input of the second information status, then execute the step 108;

In this embodiment, step 106 also includes: if the system state is the state of entering a new password for the first time, then perform step C1, if the system state is the state of entering a new password for the second time, then perform step C2, if the system state is to enter a password when powering on state then executes step C3, if the system state is a button test state then executes step C4; if it is other then executes step 114;

Step C1: Determine whether the length of the input data is equal to the length of the preset password, if so, set the system state to the state of processing the first input of a new password, and execute step 114; otherwise, execute step 114;

Step C2: Determine whether the length of the input data is equal to the length of the preset password, if so, set the system state to process the second input of a new password, and execute step 114; otherwise, execute step 114;

Step C3: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system state to process the power-on password, and execute step 114; otherwise, execute step 114;

Step C4: Prompt for success information, go to step 114;

Step 107: Set the system state as the state of processing the first information, and execute step 114;

Step 108: Set the system state as processing the second information state, and execute step 114;

Step 109: Determine the type of the system state, if it is the first type of state, execute step 110, if it is the second type of state, then set the system state to the standby state, and execute step 114;

Specifically, the first type of state in this embodiment is the standby state or the power-on password input state or the modification input password state or the first input new password state or the second input new password state or the activation code input state or the first input state. Information status or input second information status or input unlock code status;

The second type of state in this embodiment is to display the login password state or to display the first password state or to display the second password state;

Said step 109 also includes: if the system state is a power-off state, it is judged whether a seed is stored inside the dynamic token, and if so, step 114 is directly performed; otherwise, the system state is set as a test state, and step 114 is executed;

Step 110: Store the number sequence corresponding to the number key into the data buffer area, update the input data length according to the first preset method, and execute step 111;

Specifically, in this embodiment, updating the length of the input data according to the first preset method is specifically: adding 1 to the length of the input data;

Step 111: Determine whether the system state is in standby state, if so, set the system state as the state of inputting the first information, and perform step 114; otherwise, perform corresponding operations;

In this embodiment, the execution of corresponding operations in step 111 includes: if the system state is the activation code input state, step D1 is executed; if the system state is the unlock code input state, then step D2 is executed; if the system state is the password input state, then Execute step D3; if the system state is the state of entering a new password for the first time, then execute step D5; if the system state is the state of entering a new password for the second time, then execute step D7; if it is other, then execute step 114;

Step D1: Judging whether the length of the input data is equal to the first value, if yes, set the system state to verify the activation code state, and execute step 114; otherwise, execute step 114;

Specifically, the first value in this embodiment is 12;

Step D2: judging whether the length of the input data is equal to the second value, if yes, set the system state to the state of processing the unlock code, and execute step 114; otherwise, execute step 114;

Specifically, the second value in this embodiment is 8;

Step D3: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D4, otherwise execute step 114;

Step D4: Determine whether the dynamic token has been set with a password, if so, set the system state to the status of processing and modifying the password, and execute step 114; otherwise, execute step 114;

In the present embodiment, judging whether the dynamic token has been set with a password in step D4 is specifically: judging whether the password flag is set, if yes, the dynamic token has been set with a password, otherwise the dynamic token has not been set with a password;

Step D5: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D6, otherwise execute step 114;

Step D6: Determine whether a password has been set for the dynamic token, if so, set the system state to process the first input of a new password, and execute step 114; otherwise, execute step 114;

Step D7: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D8, otherwise execute step 114;

Step D8: Determine whether a password has been set for the dynamic token, if so, set the system state to process the second input of a new password, and execute step 114; otherwise, execute step 114;

In this embodiment, judging whether a password has been set on the dynamic token in step D8 is specifically: judging whether the password flag is set, if yes, the password has been set on the dynamic token, otherwise the password has not been set on the dynamic token;

Step 112: judge whether the system state is the third type of state, if so, set the system state as the state of generating a login password, and perform step 114; otherwise, perform corresponding operations;

Specifically, the third type of state in this embodiment is the state of displaying the account password or the state of displaying the second password;

In this embodiment, the execution of corresponding operations in step 112 includes: if the system state is a test state, then output the first character through the display screen, and execute step 114; if it is otherwise, execute step 114; specifically, the first character is > ;

Step 113: judging whether the system status is the standby status, if so, set the system status as the second information input status, and execute step 114, otherwise execute corresponding operations;

In this embodiment, the execution of corresponding operations in step 113 includes: if the system state is a test state, then output the second character through the display screen, and execute step 114, and if it is otherwise, execute step 114; specifically, in this embodiment The second character is <;

Step 114: Detect the type of the system state, if it is to generate a login password state, then execute step 115, if it is to process the first information state, it will execute step 116, if it is to process the second information state, it will execute step 117; if it is the fourth type of state Then return to step 102;

Specifically, in this embodiment, the fourth type of state is the standby state or the state of inputting the first information or the state of inputting the second information;

In this embodiment, this step 114 also includes:

If the system state is to switch to the shutdown state, then set the system state to the shutdown state, turn off the display screen, and return to step 102;

If the system state is to process the first input of a new password, save the data in the data buffer as the first input of the new password, set the system state to the second input of the new password, and set the length of the input data to the initial value , return to step 102;

If the state of the system is to process the state of inputting a new password for the second time, then it is judged whether the data in the data buffer area is identical with the new password input for the first time saved, if so, step E1 is executed, otherwise step E2 is executed;

Step E1: save the data in the data buffer area as the new password entered for the second time, prompt that the new power-on password is entered correctly, set the system state to standby state, set the input data length to the initial value, and return to step 102;

In this embodiment, step E1 also includes: setting the password identification;

Step E2: Prompt that the new power-on password is entered incorrectly, set the system status as the new password error state, set the input data length as the initial value, and return to step 102;

If the system state is to verify the activation code state, then it is judged whether the data in the data buffer area is the correct activation code, if yes, step E3 is executed, otherwise step E4 is executed;

Step E3: update the key, set the status of the token as activated, and prompt that the activation is successful, set the system status as the status of entering a new password for the first time, set the length of the input data as the initial value, and return to step 102;

In this embodiment, the update key specifically includes: calling a preset algorithm to generate a new key and using it to replace the stored key;

Setting the status of the token as activated is specifically: setting the activation flag;

Step E4: Prompt that the activation failed, set the system status to the activation code input status, set the input data length to the initial value, and return to step 102;

If the system state is the seventh state, it is judged whether the data in the data buffer area is the same as the saved second-time input new password, if so, step H1 is executed, otherwise step H3 is executed;

Specifically, the seventh type of status in this step is the status of processing the power-on password or processing the status of modifying the password;

Step H1: Set the number of wrong password input times as the initial value, set the automatic unlocking counter as the number of automatic unlocking times, set the automatic unlocking timer as the automatic unlocking period, and execute step H2;

Step H2: judge whether the system state is the state of processing the power-on password, if so, set the system state to the standby state, set the input data length to the initial value, and execute step 114, otherwise set the system state to the state of entering a new password for the first time, The input data length is set as an initial value, and step 114 is performed;

Step H3: Update the number of incorrect passwords entered, prompting that the power-on password is incorrectly input, display the number of incorrect passwords entered on the display screen, and execute step H4;

Specifically, in this embodiment, the initial value of the number of wrong password input times is 0, and updating the number of wrong password input times in step H3 is specifically: the number of wrong password input times is incremented by 1;

Step H4: Determine whether the number of wrong password input is equal to the preset number of retries, if yes, execute step H5, otherwise execute step H6;

Step H5: Set the status of the token as locked, set the status of the system as the status of inputting the unlock code, set the length of the input data as the initial value, and return to step 102;

Step H6: Determine whether the system state is the state of processing the power-on password, if so, set the system state to the state of the power-on password error, set the length of the input data to the initial value, and return to step 102, otherwise set the system state to the state of changing the password error, set The input data length is set to the initial value, and returns to step 102;

If the system state is processing the unlock code state, then judge whether the data in the data buffer area is the correct unlock code, if yes, it will prompt that the unlock is successful, set the token state as unlocked, clear all saved passwords, and set the system state to No. In the state of entering a new password once, set the number of wrong passwords entered and the length of the input data to the initial value, and return to step 102; otherwise, it will prompt that the unlocking fails, turn off the display, set the system state to the shutdown state, and set the length of the input data to the initial value value, return to step 102;

Specifically, setting the status of the token as unlocked and there is no password in the dynamic token is: reset the lock ID, and reset the password ID;

Return to step 102 if the system status is other status;

In this embodiment, other states in this step include: the state of entering a new password for the first time, the state of entering a password when powering on, the state of modifying an input password, the state of shutting down, the state of entering an activation code, the state of entering an unlock code, the state of invalidating a token, and the state of entering a password. first information status;

Step 115: Generate and output the login password according to the current time of the key and the dynamic token, set the system status to display the login password status, set the input data length to the initial value, and return to step 102;

In this embodiment, generating the login password specifically includes: calculating the current time of the key and the dynamic token according to a preset login algorithm to obtain the login password;

Step 116: Generate and output the first password according to the current time of the key, the dynamic token and the first input information, set the system state to display the first password state, set the input data length to the initial value, and return to step 102;

In this embodiment, generating the first password specifically includes: calculating the key, the current time of the dynamic token, the input first information and the event factor according to the preset account algorithm to obtain the first password;

Step 117: Process the input second information, generate and output the second password according to the processing result, the current time of the key and the dynamic token, set the system status to display the second password status, and set the input data length to initial value, return to step 102;

Specifically, in this embodiment, the input second information is processed as follows: formatting the second information to retain two decimal places;

In this embodiment, generating the second password specifically includes: calculating the key, the current time of the dynamic token, the processing result, and the event factor according to a preset payment algorithm to obtain the second password.

In this embodiment, in step 105, scanning the key to obtain the key value and judging the type of the pressed key according to the key value include:

Step A0: Determine whether the pressed key is a number key or a decimal point key or a function key, if so, set the initial value of the automatic shutdown timer as the automatic shutdown time, and perform step A1, otherwise perform step S14; the function keys include on/off Power off key, confirmation key, delete key, login key and payment key;

Step A1: Determine the current processing state, if it is the first processing state, execute step A2, if it is the second processing state, execute step A3, if it is the third processing state, execute step A4, if it is other, continue;

In this embodiment, if the current processing state is judged, the type of the pressed key is judged according to the key value, and corresponding operations are performed according to different pressed keys; including: if it is a confirmation key, then step S6 is executed, and if it is a numeric key, then step S6 is executed. S9, if it is a login key, execute step S12; if it is a payment key, execute step S13;

Specifically, in this embodiment, when the system state is the new password error state and the pressed key type is not the on/off key, the current processing state is the first processing state; When the type of the key pressed is not the on/off key, the current processing state is the second processing state; when the system state is changing the password error state and the type of the pressed key is not the on/off key, the current processing state is the third processing state ;

Step A2: Set the system state to the state of entering a new password for the first time, and execute step 114;

Step A3: Set the system status to power-on password input status, and execute step 114;

Step A4: Set the system state to the state of modifying the input password, and execute step 114;

In this embodiment, step 105 further includes: if the type of the pressed key is an on/off key, then execute step B1;

Step B1: Determine whether there is a seed stored in the dynamic token, if so, execute step B2, otherwise perform a self-check on the display screen and set the system status to shutdown, and execute step 114;

Step B2: Determine whether the system state is the shutdown state, if yes, execute step B3, otherwise set the system state to switch to the shutdown state, and execute step 114;

Step B3: Determine whether the time the button is pressed exceeds the preset duration, if yes, clear the data buffer area, initialize the display screen, and execute step B4; otherwise, execute step 114;

Step B4: Determine whether the status of the token is self-destructing, if so, set the system status to the status of token scrapping, and execute step 114, otherwise, execute step B5;

Specifically, in this embodiment, judging whether the status of the token is self-destructing is as follows: judging whether the self-destructing flag is set, if yes, the status of the token is self-destructing, otherwise the status of the token is normal;

The dynamic token in this embodiment sets the status of the token as self-destruction when the shelling process is performed;

Step B5: Determine whether the status of the token is activated, if so, execute step B6, otherwise set the system status as the status of inputting the activation code, and execute step 114;

Specifically, in this embodiment, judging whether the status of the token is activated is as follows: judging whether the activation flag is set, if yes, the status of the token is activated, otherwise the status of the token is not activated;

Step B6: Determine whether the status of the token is locked, if so, set the system status to the status of inputting the unlock code, and execute step 114, otherwise execute step B7;

Step B7: Determine whether the dynamic token has been set with a password, and if so, set the system state to the state of powering on and entering the password, and execute step 114; otherwise, set the system state to the state of entering a new password for the first time, and execute step 114;

Specifically, in this embodiment, judging whether the dynamic token has been set with a password is: judging whether the password flag is set, if so, the dynamic token has been set with a password, otherwise the dynamic token has not been set with a password;

Step 105 of this embodiment also includes: if the type of the pressed key is a decimal point key, step P1 is executed;

Step P1: Determine whether the system state is the fifth type of state, if yes, execute step P2, otherwise execute step 114;

Specifically, the fifth type of state in this embodiment is the test state or standby state or the state of inputting the first information or the state of inputting the second information;

Step P2: Store the decimal points in the data buffer in sequence, update the length of the input data according to the first preset method, and execute step P3;

Specifically, in this embodiment, the initial value of the input data length is 0, and the input data length according to the first preset method is: the input data length is incremented by 1;

Step P3: Determine whether the system state is in standby state, if yes, set the system state as the state of inputting the first information, execute step 114, otherwise execute step 114;

Step 105 of this embodiment also includes: if the type of the pressed key is a delete key, step Q1 is executed;

Step Q1: Determine whether the input data length is the initial value, if yes, execute step Q2, otherwise execute step Q5;

Specifically, the initial value of the input data length in this embodiment is 0;

Step Q2: Determine whether the system state is the second information input state or the second type state, if yes, set the system state to the standby state, and execute step 114, otherwise, execute step Q3;

Specifically, the second type of state in this embodiment is the state of displaying the login password or the state of displaying the first password or the state of displaying the second password;

Step Q3: Judging whether the system state is in the standby state, execute step Q4, otherwise execute step S14;

Step Q4: Determine whether the time the button is pressed exceeds the preset duration, if so, set the system status to the status of modifying the input password, and execute step 114, otherwise execute step 114;

Step Q5: Determine whether the system state is the sixth state, if yes, delete the last stored data in the data buffer, update the length of the input data according to the second preset method, execute step Q6, otherwise execute step Q8;

Specifically, in this embodiment, the initial value of the data length is 0, and the length of the input data is updated according to the second preset method: the length of the input data is decremented by 1;

In this embodiment, the sixth type of state in step Q5 is the power-on password input state or the modification input password state or the first input new password state or the second input new password state or the activation code input state or the first information input state or enter the second information state or enter the unlock code state;

Step Q6: Determine whether the system state is the state of inputting the first information, if yes, execute step Q7, otherwise execute step 114;

Step Q7: Determine whether the length of the input data is the initial value, if yes, set the system state to the standby state, and execute step 114; otherwise, execute step 114;

Step Q8: Determine whether the system status is the button test status, if yes, prompt a failure message, and go to step 114; if it is otherwise, go to step 114.

In this embodiment, the shutdown state is a state of turning off the display screen, and the sleep state is a state of entering a low power consumption state.

In this embodiment, the initial value of the input data length can also be other positive integers, and updating the input data length according to the first preset method can also be: adding N to the input data length, and updating the input data length according to the second preset method It can also be: the length of the input data is reduced by N, where N is a positive integer. The first preset method and the second preset method in this embodiment are reciprocal.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any changes or variations that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (26)

1. A working method of a dynamic token, comprising: Step S1: The dynamic token is powered on and initialized; Step S2: The dynamic token opening key is interrupted, and the token state is set to a dormant state; When the dynamic token is awakened, step S3 is executed; Step S3: Determine whether it is a key-press wake-up, if yes, execute step S4, otherwise execute step S14; Step S4: Turn off the button interrupt; Step S5: Scan the key to obtain the key value and judge the type of the pressed key according to the key value. If it is a confirmation key, execute step S6. If it is a number key, execute step S9. If it is a login key, execute step S12; if it is a payment key key then execute step S13; Step S6: Determine the type of system state, if it is the state of inputting the first information, execute step S7, if it is the state of inputting the second information, execute step S8; Step S7: Set the system state as the state of processing the first information, and execute step S14; Step S8: Set the system status as the status of processing the second information, and execute step S14; Step S9: Determine the type of the system state, if it is the first type of state, execute step S10, if it is the second type of state, set the system state to the standby state, and execute step S14; the first type of state is the standby state or power on Input password status or modify input password status or input new password status for the first time or second input new password status or input activation code status or input first information status or input second information status or input unlock code status; The second type of status is to display the status of the login password or to display the status of the first password or to display the status of the second password; Step S10: Store the number sequence corresponding to the number key into the data buffer area, update the input data length according to the first preset method, and execute step S11; Step S11: Determine whether the system state is in standby state, if yes, set the system state as the state of inputting the first information, and execute step S14; otherwise, execute the corresponding operation; Step S12: Determine whether the system state is the third type of state, if so, set the system state to the state of generating a login password, and execute step S14; otherwise, perform the corresponding operation; the third type of state is the state of displaying the first password or the state of displaying the second password. password status; Step S13: judging whether the system status is the standby status, if yes, set the system status as the second information input status, and execute step S14, otherwise, execute the corresponding operation; Step S14: Determine the type of the system state, if the system state is the state of generating a login password, then execute step S15, if the system state is the state of processing the first information, then execute step S16, if the system state is the state of processing the second information, then execute step S17; If the system state is the fourth type of state, return to step S2; the fourth type of state is the standby state or the state of inputting the first information or the state of inputting the second information; Step S15: Generate and output the login password according to the current time of the key and the dynamic token, set the system status to display the login password status, set the input data length to the initial value, and return to step S2; Step S16: Generate and output the first password according to the key, the current time of the dynamic token and the first input information, set the system state to display the first password state, set the input data length to the initial value, and return to step S2; Step S17: Process the input second information, generate and output the second password according to the processing result, the key and the current time of the dynamic token, set the system status to display the second password status, and set the input data length to initial value, return to step S2. 2. The method according to claim 1, wherein the step S3 of judging whether it is a key wake-up is specifically: judging whether a key-press wake-up flag is set, if yes, it is a key-press wake-up, otherwise it is not a key-press wake-up. 3. The method according to claim 1, wherein scanning the key to obtain the key value and judging the type of the pressed key according to the key value in the step S5 include: Step A0: Determine whether the pressed key is a number key or a decimal point key or a function key, if so, set the initial value of the automatic shutdown timer as the automatic shutdown time, and perform step A1, otherwise perform step S14; the function keys include On/off key, confirmation key, delete key, login key and payment key; Step A1: Determine the current processing state, if it is the first processing state, execute step A2, if it is the second processing state, execute step A3, if it is the third processing state, execute step A4, if it is other, continue; Step A2: Set the system state to the state of entering a new password for the first time, and execute step S14; Step A3: Set the system status to the password input status when powering on, and execute step S14; Step A4: Set the system state to the state of modifying and entering the password, and execute step S14. 4. The method according to claim 3, wherein, when the system state is a new password error state and the pressed button type is not an on/off key, the current processing state is the first processing state; when the system state When the power-on password is wrong and the type of the pressed key is not the power on/off key, the current processing state is the second processing state; when the system state is the wrong state of changing the password and the type of the pressed key is not the power on/off When the button is pressed, the current processing state is the third processing state. 5. The method according to claim 4, wherein said step S14 further comprises: If it is the state of entering a new password for the first time or the state of entering a password when starting up or modifying the state of entering a password, then return to step S2. 6. The method according to claim 5, wherein the step S5 further comprises: if the type of the pressed key is an on/off key, then execute step B1; Step B1: Determine whether there is a seed stored in the dynamic token, if so, execute step B2, otherwise perform a self-check on the display screen and set the system status to shutdown, and execute step S14; Step B2: Determine whether the system state is off, if yes, execute step B3, otherwise set the system state to switch to off state, and execute step S14; Step B3: Determine whether the time the button is pressed exceeds the preset duration, if yes, clear the data buffer area, initialize the display screen, and execute step B4; otherwise, execute step S14; Step B4: Determine whether the status of the token is self-destructing, if yes, set the system status to the status of token scrapping, and execute step S14; otherwise, execute step B5; Step B5: Determine whether the status of the token is activated, if so, execute step B6, otherwise set the system status as the status of inputting the activation code, and execute step S14; Step B6: Determine whether the status of the token is locked, if yes, set the system status to the status of inputting the unlock code, execute step S14, otherwise execute step B7; Step B7: Determine whether the dynamic token has been set with a password, if so, set the system state to the state of entering the password at power-on, and execute step S14; otherwise, set the system state to the state of entering a new password for the first time, and execute step S14. 7. The method of claim 6, wherein, In the step B4, judging whether the status of the token is self-destructing is specifically: judging whether the self-destructing flag is set, if so, the status of the token is self-destructing, otherwise the status of the token is normal; In the step B5, judging whether the token state is activated is specifically: judging whether the activation flag is set, if yes, the token state is activated, otherwise the token state is inactive. 8. The method according to claim 6, wherein said step S14 further comprises: If it is in the shutdown state or the state of entering the activation code or the state of entering the unlock code or the state of token scrapping, then return to step S2; If it is to switch to the shutdown state, set the system state to the shutdown state, turn off the display screen, and return to step S2. 9. The method according to claim 8, wherein said step S5 further comprises: if the type of the pressed key is a decimal point key, step P1 is executed, Step P1: Determine whether the system state is the fifth type of state, if yes, execute step P2, otherwise execute step S14; the fifth type of state is the test state or standby state or the state of inputting the first information or the state of inputting the second information; Step P2: Store the decimal points in the data buffer in sequence, update the input data length according to the first preset method, and execute step P3; Step P3: Determine whether the system state is the standby state, if yes, set the system state to the state of inputting the first information, execute step S14, otherwise execute step S14. 10. The method according to claim 9, wherein the initial value of the input data length is 0; The updating of the length of the input data according to the first preset method specifically includes adding 1 to the length of the input data. 11. The method according to claim 9, wherein said step S14 further comprises: If it is in the state of inputting the first information, return to step S2. 12. The method according to claim 10, characterized in that, said step S5 further comprises: if the type of the pressed key is a delete key, step Q1 is executed, Step Q1: Determine whether the input data length is the initial value, if yes, execute step Q2, otherwise execute step Q5; Step Q2: judging whether the system state is the state of inputting the second information or the state of the second type, if yes, set the state of the system to the standby state, execute step S14, otherwise execute step Q3; the state of the second type is the state of displaying the login password or Display the first password status or the second password status; Step Q3: Determine whether the system status is standby, if yes, execute step Q4, otherwise execute step S14; Step Q4: Determine whether the time the button is pressed exceeds the preset duration, if so, set the system status to the status of modifying the input password, and execute step S14; otherwise, execute step S14; Step Q5: Determine whether the system state is the sixth type of state, if yes, delete the last stored data in the data buffer, update the length of the input data according to the second preset method, execute step Q6, otherwise execute step Q8; the sixth The state is the state of entering the password at startup or modifying the state of entering the password or the state of entering the new password for the first time or the state of entering the new password for the second time or the state of entering the activation code or the state of entering the first information or the state of entering the second information or the state of entering the unlock code ; Step Q6: Determine whether the system state is the state of inputting the first information, if yes, execute step Q7, otherwise execute step S14; Step Q7: Determine whether the length of the input data is the initial value, if yes, set the system state to the standby state, and execute step S14; otherwise, execute step S14; Step Q8: Determine whether the system status is the button test status, if yes, prompt a failure message, and go to step S14; otherwise, go to step S14. 13. The method according to claim 12, wherein the initial value of the input data length is 0; The updating of the length of the input data according to the first preset method is specifically: adding 1 to the length of the input data; The updating of the input data length according to the second preset method specifically includes: decrementing the input data length by 1. 14. The method according to claim 13, characterized in that, the step S6 further comprises: if the system state is the state of entering a new password for the first time, then execute step C1, if the state of the system is the state of entering a new password for the second time, then Execute step C2, if the system state is the power-on password input state, then execute step C3, if the system state is the button test state, then execute step C4; if it is other, then execute step S14; Step C1: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system status to the state of processing the first input of a new password, and execute step S14; otherwise, execute step S14; Step C2: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system state to process the second input of a new password, and execute step S14; otherwise, execute step S14; Step C3: Determine whether the length of the input data is equal to the length of the preset password, if yes, set the system status to the status of processing the power-on password, and execute step S14; otherwise, execute step S14; Step C4: A success message is prompted, and step S14 is executed. 15. The method according to claim 14, characterized in that said step S14 further comprises: If the system state is the seventh type of state, then judge whether the data in the data buffer area is identical with the new password of the second input of preservation, if yes, execute step H1, otherwise execute step H3; password status or handle changing password status; Step H1: Set the number of wrong password input times as the initial value, set the automatic unlocking counter as the number of automatic unlocking times, set the automatic unlocking timer as the automatic unlocking period, and execute step H2; Step H2: Determine whether the system state is the state of processing the power-on password, if so, set the system state to the standby state, set the input data length to the initial value, and execute step S14, otherwise set the system state to the state of entering a new password for the first time, Set the input data length as an initial value, and execute step S14; Step H3: Update the number of incorrect passwords entered, prompting that the power-on password is incorrectly input, display the number of incorrect passwords entered on the display screen, and execute step H4; Step H4: Determine whether the number of wrong password input is equal to the preset number of retries, if yes, execute step H5, otherwise execute step H6; Step H5: Set the status of the token as locked, set the status of the system as the status of inputting the unlock code, set the length of the input data as the initial value, and return to step S2; Step H6: Determine whether the system state is the state of processing the power-on password, if so, set the system state to the state of the power-on password error, set the length of the input data to the initial value, and return to step S2, otherwise set the system state to the state of changing the password error, set The length of the input data is set to the initial value, and return to step S2. 16. The method according to claim 15, wherein said step S9 further comprises: if the system state is a shutdown state, then judging whether a seed is stored inside the dynamic token, if so, setting the system state to a test state, Execute step S14, otherwise directly execute step S14. 17. The method according to claim 16, characterized in that, performing the corresponding operation in the step S11 comprises: if the system state is the activation code input state, then execute step D1; if the system state is the unlock code input state, then execute step D1 D2; if the system state is to modify the input password state, then perform step D3; if the system state is the first time to enter a new password state, then perform step D5; if the system state is to enter a new password state for the second time, then perform step D7; if it is other Then execute step S14; Step D1: Judging whether the length of the input data is equal to the first value, if yes, set the system state to verify the activation code state, and execute step S14; otherwise, execute step S14; Step D2: Determine whether the length of the input data is equal to the second value, if yes, set the system state to the state of processing the unlock code, and execute step S14; otherwise, execute step S14; Step D3: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D4, otherwise execute step S14; Step D4: Determine whether the dynamic token has been set with a password, and if so, set the system state to the status of processing and modifying the password, and execute step S14; otherwise, execute step S14; Step D5: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D6, otherwise execute step S14; Step D6: Determine whether a password has been set for the dynamic token, if so, set the system state to process the first input of a new password, and execute step S14; otherwise, execute step S14; Step D7: Determine whether the length of the input data is equal to the length of the preset password, if yes, execute step D8, otherwise execute step S14; Step D8: Determine whether a password has been set on the dynamic token, if yes, set the system state to process the second input of a new password, and execute step S14, otherwise execute step S14. 18. The method according to claim 17, wherein said judging whether a password has been set for the dynamic token is specifically: judging whether the password flag is set, if yes, the password has been set for the dynamic token, otherwise the dynamic token has not been set. A password has been set. 19. The method according to claim 17, wherein said step S14 further comprises: The fourth type of state is the state of inputting the first password or the state of testing or processing and modifying the password; If the system status is verifying the activation code status, then judge whether the data in the data cache area is the correct activation code, if so, update the key, set the token status as activated, prompt that the activation is successful, and set the system status as the first time Enter the new password state, set the input data length as the initial value, and return to step S2; otherwise, it prompts that the activation fails, set the system state as the input activation code state, set the input data length as the initial value, and return to step S2; If the system state is processing the unlock code state, then judge whether the data in the data cache area is the correct unlock code, if yes, it will prompt that the unlock is successful, set the token state to unlock, clear all saved passwords, and set the system state to the first In the state of entering a new password once, set the number of wrong passwords entered and the length of the input data to the initial value, and return to step S2; otherwise, it will prompt that the unlocking fails, turn off the display, set the system state to the shutdown state, and set the length of the input data to the initial value value, return to step S2; If the system state is the state of processing the new password input for the first time, then save the data in the data buffer area as the new password entered for the first time, set the system state to the state of entering the new password for the second time, and set the input data length to initial value, return to step S2; If the state of the system is to process the state of entering a new password for the second time, then it is judged whether the data in the data buffer is the same as the first input new password saved, if so, step E1 is executed, otherwise step E2 is executed; Step E1: Save the data in the data buffer area as the new password entered for the second time, prompting that the new power-on password is entered correctly, set the system state to the standby state, set the input data length to the initial value, and return to step S2; Step E2: Prompt that the new power-on password is entered incorrectly, set the system state as the new password error state, set the input data length as the initial value, and return to step S2. 20. The method according to claim 19, wherein said setting the status of the token as activated is specifically: setting the activation flag; To set the status of the token as unlocked is to reset the lock flag. 21. The method according to claim 19, wherein the initial value of the number of wrong password input is 0; the updating of the wrong password input times is specifically: adding 1 to the number of wrong password input times. 22. The method according to claim 19, characterized in that, performing the corresponding operation in the step S12 comprises: if the system state is a test state, then output the first character through the display screen, and execute step S14; if it is other, execute Step S14. 23. The method according to claim 22, characterized in that, performing the corresponding operation in the step S13 comprises: if the system state is a test state, then output the second character through the display screen, execute step S14, and execute if it is other Step S14. 24. The method according to claim 1, wherein generating the login password in the step S15 specifically comprises: calculating the current time of the key and the dynamic token according to a preset login algorithm to obtain the login password. 25. The method according to claim 1, characterized in that, generating the first password in the step S16 specifically includes: pairing the key, the current time of the dynamic token, the input first information and the event according to the preset account algorithm Factors are calculated to obtain the first password. 26. The method according to claim 1, wherein generating the second password in the step S17 is specifically: calculating the key, the current time of the dynamic token, the processing result and the event factor according to the preset payment algorithm Get the second password.