How to design a secure MySQL table structure to implement the verification code function?

How to design a secure MySQL table structure to implement the verification code function?

With the rapid development of the Internet, the verification code function has become one of the common security verification methods on websites and applications. During the development process, how to design a safe and stable MySQL table structure to store and use verification code data is a crucial issue. This article will introduce in detail how to design a secure MySQL table structure and give specific code examples.

1. Create table structure

First, we can create a table named "verification_code" to store verification code-related data. This table contains the following columns:

• id: The unique identifier of the verification code, implemented using an auto-incrementing primary key.
• mobile: The mobile phone number sent by the verification code can be stored using VARCHAR or INT type.
• code: The specific content of the verification code is stored using VARCHAR.
• expire_time: The expiration timestamp of the verification code, stored using the INT type.
• create_time: The creation timestamp of the verification code, stored using the INT type.

The SQL code to create the table structure is as follows:

CREATE TABLE verification_code (
  id INT AUTO_INCREMENT PRIMARY KEY,
  mobile VARCHAR(11) NOT NULL,
  code VARCHAR(6) NOT NULL,
  expire_time INT NOT NULL,
  create_time INT NOT NULL
);

2. Insert verification code data

Next, we can write code to insert verification code data. Before the user performs verification code verification, we need to insert a new verification code data into the database. The following is an example of the insertion code:

INSERT INTO verification_code (mobile, code, expire_time, create_time) 
VALUES ('13812345678', '123456', UNIX_TIMESTAMP() + 600, UNIX_TIMESTAMP());

In this example, we insert a piece of data into the "verification_code" table, in which the verification code content is "123456" and the expiration time is the current time plus 600 seconds. , the creation time is the current time.

3. Verify verification code data

After completing the insertion of the verification code, we can write code to verify whether the verification code entered by the user is valid. The following is an example verification code:

SELECT * FROM verification_code 
WHERE mobile = '13812345678' 
AND code = '用户输入的验证码'
AND expire_time > UNIX_TIMESTAMP()

In this example, we check whether there is matching verification code data by querying the "verification_code" table. We filter based on mobile phone number, verification code content and expiration time. Only when these conditions are met, the verification code is valid.

4. Delete verification code data

Finally, we can write code to delete the verification code data that has been used to ensure timely cleaning of the data in the table. The following is an example deletion code:

DELETE FROM verification_code 
WHERE mobile = '13812345678' 
AND code = '123456';

In this example, we use the DELETE statement to delete the matching verification code data from the "verification_code" table. This deletion operation only needs to be performed when the verification code entered by the user is correct.

Summary:

Through the above design and code examples, we can see that when designing a secure MySQL table structure to implement the verification code function, the following aspects mainly need to be considered :

• The table structure must contain key information of the verification code, such as mobile phone number, verification code content, expiration time, etc.
• When inserting data, ensure uniqueness and correctness.
• Use query statements to verify the validity of the verification code.
• Delete the used verification code data promptly.

The above is an introduction on how to design a secure MySQL table structure to implement the verification code function. I hope it will be helpful to you.

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