Patent ID: 8464049

Claim:
A system of accessing a copy-prevented encrypted data file transmitted over a network, the system comprising: a server apparatus having data files encrypted twice, a key for decrypting the data files is embedded in a read apparatus in a client apparatus, another key for decrypting the data files is stored in the sever apparatus; and the client apparatus comprising the read apparatus and a temporary storage, wherein a data file in a server apparatus is accessed through the network by the client apparatus, decrypted by the server apparatus using the key stored in the server apparatus, and wherein, the decrypted data file is further encrypted before sent to the client apparatus, the corresponding decrypting key is stored in the client apparatus other than the read apparatus; wherein the encrypted data file is received by the client apparatus and cached in the temporary storage, the encrypted data file cached in the temporary storage is decrypted using the decrypting key stored in the client apparatus, and the decrypted data file is cached in the temporary storage and further decrypted by the read apparatus using the key embedded in the read apparatus, and the data file further decrypted and cached in the temporary storage is obtainable by the read apparatus for human recognition of the content of the data file, and further wherein the read apparatus is not capable of at least one of printing and saving as.