Method for associating a pass phase with a secured public/private key pair
US6704868B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3226
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for associating a pass phrase with a secured public/private key pair is disclosed. A user public/private key pair is first established for a user. The user public/private key pair includes a user public key and a user private key. Then, the user public/private key pair is encrypted along with a random password, utilizing a chip public key. Next, a first symmetric key is generated. The random password is encrypted utilizing the first symmetric key. A first password is generated by hashing a first pass phrase. Finally, the first password is encrypted along with the first symmetric key, also utilizing the chip public key. As a result, a user can access the user private key to perform an authentication function by providing the first pass phrase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.