Cryptographic security method and electronic devices suitable therefor
US7225337B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 2003 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jul 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A portable electronic security module including an electronic data storage device, a secret private customer key and a public customer key stored in the electronic data storage device as a first digital key pair, a signature module configured to generate a digital customer signature from object data to be signed using the secret private customer key, a secret private key of a security provider and a public key of the security provider stored in the electronic data storage device as a second digital key pair, and a certification module, installed in the signature module, and configured to generate a digital signature certificate from the digital customer signature using the secret private key of the security provider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.