| 摘要 |
A sender uses his or her own key to encrypt data and send it to a data center (2). After using the sender's key to decrypt the encrypted data, the data center (2) uses the sender's key to re-encrypt it and sends it to a receiver (4). The receiver uses his or her own key to decrypt the re-encrypted data to obtain the original data. In this way, an encryption communication can be performed. It should be noted that an encryption algorithm used in the present invention is a bit unit XOR operation of plaintext and key. |
