Key conversion method for communication session encryption and authentication system
US7299356B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2003 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Jan 26, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An interactive mutual authentication protocol, which does not allow shared secrets to pass through untrusted communication media, integrates an encryption key management system into the authentication protocol. The server encrypts a particular data random key by first veiling the particular data random key using a first conversion array seeded by a shared secret, and then encrypting the veiled particular data random key. The client decrypts and unveils the particular data random key using the shared secret, and returns a similarly veiled version of the particular data random key using a second conversion array seeded by a shared secret. Access to the shared secret indicates authenticity of the stations. The procedure may be repeated for a second shared secret for strong authentication, without allowing shared secrets to pass via untrusted media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.