Technique for asymmetric crypto-key generation
US7565527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jul 12, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/085
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for generating a multi-factor asymmetric key pair having a public key and split private key with multiple private portions, at least one of the multiple portions being a multiple factor private key portion, are provided. First and second asymmetric key pairs are generated, each having a private key and a public key. A text string and the first private key are cryptographically combined to make a first private key portion of the split private key. This first private key portion is a multiple factor private key portion. A second private key portion of the split private key is generated based upon the generated first private key portion and the second private key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.