Method and system for accelerating the deterministic enciphering of data in a small domain
US8687802B2 · kind B2 · utility
2Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Sep 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Conventional block ciphers that traffic in 128-bit block sizes are ill-suited for operating in small domains like credit card numbers. Some embodiments relate to techniques for constructing and speeding up practical and provably secure schemes for deterministically enciphering data from a small domain like credit card numbers using a conventional block cipher or other pseudorandom function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.