Issued Patents 2011
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074073 | Certificate-based encryption and public key infrastructure | — | 2011-12-06 |
| 8065332 | Method and apparatus for communication efficient private information retrieval and oblivious transfer | Zulfikar Ramzan | 2011-11-22 |
| 8024562 | Revocation of cryptographic digital certificates | Zulfikar Ramzan, Bernhard Bruhn | 2011-09-20 |
| 8006086 | Revocation of cryptographic digital certificates | Zulfikar Ramzan, Bernhard Bruhn | 2011-08-23 |
| 7987201 | Method and apparatus for communication efficient private information retrieval and oblivious transfer | Zulfikar Ramzan | 2011-07-26 |
| 7957525 | Encryption and signature schemes using message mappings to reduce the message size | — | 2011-06-07 |
| 7941422 | Method and apparatus for communication efficient private information retrieval and oblivious transfer | Zulfikar Ramzan | 2011-05-10 |
| 7925027 | Secure address proxying using multi-key cryptographically generated addresses | James Kempf | 2011-04-12 |