Shenzhen Pax Smart New Technology Co., Ltd.

Pax Computer Technology (shenzhen) Co., Ltd.

Aiping Zhou

Huan Wang

Xiaofeng Wang

Youren Chen

Jiansheng Zeng

Gengxin Wu

Lingcong Zeng

Jiale Ren

Qiong Huang

An encryption method and a decryption method for a payment key are provided. The encryption method includes: generating an AES file key and an AES key through a key store management system; generating, by the back-end system, a SM4 white box secret key, a SM2 public key and a SM2 private key and saving the SM2 private key; receiving the SM4 white box secret key and the SM2 public key sent by the back-end system; encrypting, by using the AES file key, the SM4 white box secret key and the SM2 public key to generate and save a ciphertext of the SM4 white box secret key and the SM2 public key; encrypting, using the SM4 white box secret key, the AES key and the SM2 public key, a plaintext of the payment key issued by an electronic payment system to generate and save a ciphertext of the payment key.

Encryption method and decryption method for payment key, payment authentication method, and terminal device

A method for establishing communication channel is provided, the method includes: performing a verification on the first verification information; generating second verification information when the verification of the first verification information is passed; generating third verification information according to the first verification information, and transmitting the second verification information and the third verification information to a server; performing a verification on the fourth verification information; when the verification of the fourth verification information is passed, generating fifth verification information according to the first verification information, generating sixth verification information according to the fourth verification information and transmitting the fifth verification information and the sixth verification information to the payment terminal; establishing a first communication channel based on a first session key, and establishing a second communication channel based on a second session key. By performing the method, the security of data transmission is ensured, and a risk is avoided.

Method for establishing communication channel, and user terminal

A method for file encryption includes: determining, in response to obtaining a file to be encrypted, a first secret key for encrypting a file name according to the file name of the file to be encrypted; encrypting the file name according to the first secret key to obtain file name encryption information; and sending the file to be encrypted and the file name encryption information to a local service layer, in order that the local service layer encrypts a file content of the file to be encrypted based on the file to be encrypted and the file name encryption information. The encryption operation of the file content is mainly performed in the local service layer, so that the security protection of the encrypted file may be guaranteed.

Method for file encryption, terminal, electronic device and computer-readable storage medium

The present solution provides a method for card reading, the method includes: turning on a read head of the magnetic stripe card, a read head of the contact IC card, and a coil of the non-contact IC card; detecting card reading actions; turning off, if the card inserting action is detected, the coil of the non-contact IC card; powering on the card when the card reaches a bottom of a card slot of the payment terminal; controlling, if the card is successfully powered on, the read head of contact IC card to read the card; controlling, if the card fails to be powered on, the read head of the magnetic stripe card to read the card when the card swiping action is detected; and controlling, if the card waving action is detected, the coil of the non-contact IC card to read card.

Growing community of inventors

Guangdong, China

Aiping Zhou