How to call wosa password keyboard in javascript

In daily applications, we often need to use the password keyboard to enter sensitive information such as passwords. WOSA password keyboard is a device specially used for encryption protection. It can effectively protect the security of our accounts and passwords through encryption algorithms. In actual development, we need to operate the WOSA password keyboard through JavaScript. This article will introduce the steps of how to call the WOSA password keyboard using JavaScript.

1. Introduction to WOSA password keyboard

WOSA password keyboard refers to a device designed for password input using WOSA (Windows Open Service Architecture). It can communicate with applications through the Management Control Interface (MCI) and Low-Level Interface (LLAPI). WOSA password keyboard is widely used in banking, finance, e-commerce and other fields that need to ensure information security.

2. Steps to call the WOSA password keyboard

To call the WOSA password keyboard in JavaScript, you need to go through the following steps.

1. Create a WScript object

The WScript object is the top-level object of the Windows Script Host in JavaScript. Before calling the WOSA password keyboard, we need to obtain the properties and methods related to the Windows script host by creating a WScript object.

var WSHShell = new ActiveXObject("WScript.Shell");

2. Obtain the WOSA password keyboard handle

The operation of the WOSA password keyboard needs to be implemented through a handle. We need to obtain the handle of the WOSA password keyboard in the system by calling the MCI method.

var handle = WSHShell.Run("mode com1 baud=9600 parity=n data=8 stop=1 xon=off to=on", 1, true);

3. Execute MCI commands

The implementation of WOSA password keyboard operation is mainly achieved by executing MCI commands. MCI is a standard set of commands defined in Windows for controlling multimedia devices or other devices. We need to open the WOSA password keyboard and enter the password by executing the MCI command.

WSHShell.Run("mode COM1: baud=9600 data=8 parity=n stop=1", 1, true);  //设置串口参数
WSHShell.Run("echo +SCPOS001+SCPIN+16+968085+", 2, true);  //执行MCI命令

4. Get the WOSA password keyboard input value

After completing the password input, we need to get the WOSA password keyboard input value, save it to a variable, and perform subsequent processing.

var value = WSHShell.StdIn.ReadLine().trim();

5. Close the WOSA password keyboard

After completing the password input and obtaining the value, we need to avoid damage to the device by closing the WOSA password keyboard.

WSHShell.Run("echo +SCPOS002+SCPOF+", 2, true);  //执行MCI命令

3. Application scenarios of WOSA password keyboard

WOSA password keyboard is widely used in fields that require high security protection, such as finance, banking, e-commerce, etc. In these areas, the password keyboard has the following advantages.

1. Protect the security of sensitive information

WOSA password keyboard uses encryption algorithms, which can encrypt information when entering passwords, effectively protecting the security of accounts and passwords.

2. Easy to operate

The WOSA password keyboard is very easy to use. The user only needs to insert it into the computer and enter the password.

3. Popular use

WOSA password keyboard has become a popular password input method for public use and has outstanding advantages such as portability and security.

4. Summary

WOSA password keyboard is a device specially used for encryption protection, which can better protect the security of accounts and passwords. In actual development, we can use JavaScript to operate the WOSA password keyboard. The above are the steps for JavaScript to call the WOSA password keyboard. I hope it can help developers better apply the WOSA password keyboard and ensure the security of accounts and passwords.

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