Techniques for secure authentication
US10326596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2016 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jun 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various embodiments are generally directed to techniques for secure message authentication and digital signatures, such as with a cipher-based hash function, for instance. Some embodiments are particularly directed to a secure authentication system that implements various aspects of the cipher-based hash function in dedicated hardware or circuitry. In various embodiments, the secure authentication system may implement one or more elements of the Whirlpool hash function in dedicated hardware. For instance, the compute-intensive substitute byte and mix rows blocks of the block cipher in the Whirlpool hash function may be implemented in dedicated hardware or circuitry using a combination of Galois Field arithmetic and fused scale/reduce circuits. In some embodiments, the microarchitecture of the secure authentication system may be implemented with delayed add key to limit the memory requirement to three sequential registers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.