Enciphering method
US7418100B2 · kind B2 · utility
26Cited by
2References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2005 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Sep 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A block cipher mode of operation implements a block cipher with an arbitrary block length and provides output ciphertext that is always the same size as the input plaintext. The mode can provide the best possible security in systems that cannot allow data expansion, such as disk-block encryption and some network protocols. The mode accepts an additional input, which can be used to protect against attacks that manipulate the ciphertext by rearranging the ciphertext blocks. The universal hash function from Galois/Counter Mode of operation for block ciphers may be used in an embodiment for hardware and software efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.