Multi-port PUF circuit based on NMOS zero temperature coefficient point
US9948464B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2017 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Aug 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a multi-port PUF circuit based on NMOS zero temperature coefficient point, comprising an input register, a deviation current source, a arbiter and a disturbing module used to construct a multi-port PUF circuit; the input register comprises m D-flip-flops; the deviation current module comprises m deviation current cells; the arbiter comprises 2n current sensitive amplifiers; the disturbing module comprises n 2-input XOR gates; wherein an input challenge used to configure deviation current generation module can update IDs without replacement of hardware. In addition, it has a capability of producing a multi-bit IDs in one clock cycle. Post-layout simulation results show that the PUF circuit is provided with excellent uniqueness and randomness with reliability up to 98.2% across temperature variation from −40° C. to 125° C., and supply voltage variation from 1.08V to 1.32V; it can be applied in information security field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.