Method for a public-key infrastructure providing communication integrity and anonymity while detecting malicious communication
US8767965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2008 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Feb 2, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An inventive scheme for detecting parties responsible for repeated malicious activities in secure and anonymous communication is presented. The scheme comprises generating a pool of keys, distributing to and associating with each party a small number of keys chosen randomly from the pool, revoking a key when it is detected as used in a malicious activity, creating a set of parties associated with the revoked key, revoking additional keys randomly chosen among the keys not currently revoked, selecting new keys, and when a party requests an updated key, sending the updated key selected from among the new keys to the requesting party, wherein if an other malicious activity is detected, creating another set of the parties associated with the other malicious activity and identifying the parties in both sets. The steps of the inventive scheme are repeated until only one party is in the intersection set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.