PRNG-based chiplet-to-chiplet secure communication using chaining of message blocks
US12362911B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Dec 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0877
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first chiplet parses at least a message into ordered message blocks that are associated with index values. The first chiplet generates a substitution value by executing a pseudo-random number generator using a seed value that is computed with at least (i) a first random or pseudo-random number and at least (ii) a first message block. The first chiplet generates a sequencing value by executing a pseudo-random number generator using a seed value that is computed with at least (i) a second random or pseudo-random number and at least (ii) an index value for the first message block. The first chiplet generates a first ciphertext block with at least the substitution value and the sequencing value and further generates a second ciphertext block at least partly with the first ciphertext block. The blocks are concatenated and transmitted to a second chiplet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.