Password-based key derivation without changing key
US9432186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jul 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data securing method, a data securing system and a data carrier are provided. The data securing method comprises an encryption procedure for encrypting a data or performing an authentication procedure. The encryption procedure includes the following steps. A first personal identification number is obtained. A first random number is generated. A first key is obtained according to the first personal identification number and the first random number. A first secure checksum is obtained according to the first key. The first random number and part of the first secure checksum are stored. The data is encrypted. The authentication procedure is performed according to the first key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.