Secure communication apparatus and method
US7693285B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2002 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Nov 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0464
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus, such as a secure distribution server, receives encrypted information from a sender, wherein the encrypted information is for transmission to a plurality of intended recipients. In addition to the encrypted information, the method includes receiving an encrypted secret key that is encrypted using a public key associated with the secure distribution server. The method and apparatus decrypts the encrypted secret key to produce a decrypted secret key. The method and apparatus then encrypts the decrypted secret key with the corresponding public key of at least one (or each of a plurality of) intended recipient(s) to produce at least one (or plurality of) recipient-specific secure secret keys. The method and apparatus then forwards the received encrypted information sent by the sender and also sends at least one recipient-specific secure secret key to a corresponding intended recipient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.