| 摘要 |
There is provided a method of securing electronic information comprising encrypting electronic information with computing apparatus (11) using an encryption key based on information data associated with a storage device (16). The information data comprises a memory location identifier representing a position in an electronic memory of the storage device (16) where purchased electronic information is to be stored. Recursively encrypted information is stored on the storage device (16) at a position associated with the memory location identifier. The information data is used to provide a key for decryption. Decryption is performed on successive data portions of the electronic information in turn, with a preceding decrypted data portion overwritten or deleted as a next data portion is decrypted. |
