Methods and systems for improved authenticated encryption in counter-based cipher systems
US10560269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2017 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Nov 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for improving authenticated encryption in counter-based cipher systems are presented. Embodiments of the present invention provide secure and efficient means to achieve both the authenticity and privacy goals of authenticated encryption, and are compatible with most block cipher modes of operation, e.g. CBC, CFB and CTR, and most symmetric-key cryptographic functions, e.g. AES, DES and RC5. In particular, using block cipher encryption with data-dependent initialization vectors achieve the privacy goal and enable over-the-air transmissions to remain uncompromised, especially in scenarios that may result in the counter being reset in counter-based cipher systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.