| 摘要 |
A system and a method for secure electronic commerce (e-commerce) trade are provided, applicable in a network environment such as Internet or Intranet to encrypt/decrypt trade data in a symmetric manner and via an asymmetric single function through the use of a hardware serial number, a public key and a private key so as to achieve secure e-commerce trade via point-to-point protocol (PPP). The secure e-commerce trade system includes a trade service center, a data transmission network and at least one user end device. The user end device has a unique hardware serial number for use in verification and encryption/decryption of the trade data. By the uniqueness of the hardware serial number, a user cannot verify and encrypt/decrypt trade data via another user end device with another hardware serial number even in the case of the public key and private key known to the user.
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