| 摘要 |
Disclosed is a digital file encryption method. The method comprises: when a user requests to download a designated digital file, generating an encryption key on the basis of inherent information of the user, of inherent information of a client terminal used thereby, and of inherent information of the designated digital file; encrypting the designated digital file on the basis of the encryption key generated; and, when the digital file is downloaded by the client terminal that is used by the user, decrypting on the basis of the encryption key and of a corresponding decryption process. The technical solution of the present invention allows dynamic generation of one encryption key each time the digital file is downloaded, thus truly implementing "one person, one machine, one copy of the digital file." |
