Cryptographic data communication apparatus
US11909856B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2022 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Dec 7, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/123
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an apparatus includes a network interface to receive a sequence of data packets from a remote device responsively to a data transfer request, the received sequence including received data blocks, and packet processing circuitry to read cryptographic parameters from a memory in which the parameters were registered by a processing unit, the cryptographic parameters including an initial cryptographic key and initial value, compute a first cryptographic key responsively to the initial cryptographic key and initial value, cryptographically process a first block responsively to the first cryptographic key, compute an updated value responsively to the initial value and a size of the first block, compute a second cryptographic key responsively to the initial cryptographic key and the updated value, cryptographically process a second block of the received data blocks responsively to the second cryptographic key, and write the cryptographically processed first and second block to the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.