Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735312 | Cryptographic method for restricting access to transmitted programming content using ƒ-redundant establishment key combinations | Michel Ferreira Abdalla, Yuval Shavitt | 2004-05-11 |
| 6735313 | Cryptographic method and apparatus for restricting access to transmitted programming content using hash functions and program identifiers | Daniel Bleichenbacher | 2004-05-11 |