Today, I opened the company basic deposit account in China Construction Bank and gave a payment cipher. What is this for?

Payment password is a kind of payment password that can be combined with bank computer network to form a payment password system. The single-chip computer selects a microcomputer chip including a random access memory RAM and a mask encryption program memory ROM.

The MCU is shielded with complete coding control program and encryption algorithm program, which has the characteristics of high accuracy, good security and anti-deciphering, convenient and comfortable use, simple structure, easy to carry and so on. The use method is as follows:

1. Take out the payment password and open it. As shown in the figure below:

2. The following interface appears, select 1 and press Enter. As shown in the following figure

3. The following interface appears, enter the card issuing password * * * *, and confirm.

4. The following interface appears, select 1 and press Enter.

5. The following interface appears. Select the issuer's bank account number and confirm.

6. The following interface appears, select 1 and press Enter.

7. Enter the following interface, enter the date of issue, voucher number and amount of issue, and press Enter after filling in.

8. The following interface appears. Copy the payment password to the corresponding location of the check. Just copy the number directly, and the bar between four digits does not need to be copied. )