
US Patent No: 5,680,452
Number of patents in Portfolio can not be more than 2000
Distributed cryptographic object method
Stats
-
Oct 21, 1997
Issued date -
Feb 24, 1995
filing date -
08/394,402
serial no -
In Force
status
Importance
Abstract
A system for increasing the security of a computer system, while giving an individual user a large amount of flexibility and power. To give users the most power and flexibility, a standard object that has the capability to embed objects is used. To allow users even more flexibility, a standard object tracking mechanism is used that allows users to distribute to other individuals multiple encrypted objects embedded in a single encrypted object. By effecting compartmentalization of every object by label attributes and algorithm attributes, multi-level multimedia security is achieved. Label attributes are used to restrict access to objects based on location, group, or other criteria and may specify personal access. Access type, such as read-only, write-only, and print-only may be specified. Nested embedded objects may be accessed directly through selection from a header array.
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 5,065,429 Method and apparatus for protecting material on storage media | 216 | 1990 | |
| 5,191,611 Method and apparatus for protecting material on storage media and for transferring material on storage media to various recipients | 399 | 1991 | |
|
|
|||
| 5,369,707 Secure network method and apparatus | 157 | 1993 | |
| 5,369,702 Distributed cryptographic object method | 217 | 1993 | |
|
|
|||
| 4,218,582 Public key cryptographic apparatus and method | 460 | 1977 | |
| 4,424,414 Exponentiation cryptographic apparatus and method | 299 | 1978 | |
|
|
|||
| 4,984,272 Secure file handling in a computer operating system | 90 | 1988 | |
|
|
|||
| 5,204,961 Computer network operating with multilevel hierarchical security with selectable common trust realms and corresponding security protocols | 208 | 1990 | |
|
|
|||
| 4,405,829 Cryptographic communications system and method | 937 | 1977 | |
|
|
|||
| 4,864,616 Cryptographic labeling of electronically stored data | 119 | 1987 | |
|
|
|||
| 4,713,753 Secure data processing system architecture with format control | 291 | 1985 | |
|
|
|||
| 5,052,040 Multiple user stored data cryptographic labeling system and method | 181 | 1990 | |
|
|
|||
| 4,962,533 Data protection for computer systems | 74 | 1989 | |
|
|
|||
| 4,955,082 Mobile communication system | 82 | 1989 | |