Method and apparatus for use in public-key data encryption system
US4633036A · kind A · utility
76Cited by
2References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1984 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | May 31, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an encryption scheme based on the use of a public key having secret factors p and q, additional requirements on p and q are invoked in order to ensure a high level of security. In particular, it is additionally required that a value p+1 have a large prime factor r and that the value r-1 also have a large prime factor r'.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.