| 摘要 |
<p>An authentication system for online financial transactions over a communication network is provided, including a central management server which has an approval-key generation unit and an encryption-key generation unit, controls online financial transactions, transmits the approval key to a user terminal over a wireless network, encrypts and decrypts data transmitted and received to and from a financial terminal using the encryption key, a user terminal which is connected to the central management server and a financial terminal over a wireless network, and includes an approval-key receiving unit, an input unit to input a private password, an encryption-key generation unit to generate an encryption key from the approval key and the private password, and a data transceiver unit to transmit the encryption key to a financial terminal, and a financial terminal to encrypt and decrypt data transmitted and received to and from the central management server using the encryption key.</p> |
