Method and system for secure data storage

摘要

Method and system for secure storage and retrieval of a data string generated by a data source like a camera (1). A processor (2) generates independent output strings. Those output strings are combined to each other and to the original data string, resulting in one or more output strings. All output strings are stored in separate locations (3). For retrieval of a replica of the original data string all output strings are retrieved and combined to each other, thus re-compiling a replica of the original camera string. The original data string as well as the output decomposition strings may be watermarked to prove their authenticity. For security the output strings are transmitted after being encrypted and stored separately. For maintaining personal privacy, all separate store locations have different accession rights assigned to different users (4a-d). For the accountability of the process a series of watermarks is added at each stage.