DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Moon-Seok | ko |
dc.contributor.author | Tcho, Il-Woong | ko |
dc.contributor.author | Choi, Yang-Kyu | ko |
dc.date.accessioned | 2024-04-16T03:00:26Z | - |
dc.date.available | 2024-04-16T03:00:26Z | - |
dc.date.created | 2024-01-22 | - |
dc.date.issued | 2024-01 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v.14, no.1 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/10203/318999 | - |
dc.description.abstract | A wind-driven triboelectric nanogenerator (W-TENG) is a promising energy harvesting device due to its clean, ubiquitous and unexhausted properties. In addition, a W-TENG induces unpredictable chaotic outputs from wind flow that can serve as an entropy source for cryptography. This can be applied to a true random number generator (TRNG) for a secured system due to its inherent turbulent nature; thus, a W-TENG with a two-in-one structure can simultaneously generate both power and true random numbers. However, a previously reported W-TENG had one major drawback: a wind velocity of 10 m/s is required for stable energy harvesting by wind force. Thus, it is timely to demonstrate a W-TENG-based RNG whose operating condition is below 3 m/s, which is a gentle breeze similar to natural wind. In this study, we demonstrate a wind-driven cryptographic triboelectric random number generator (WCT-RNG) by using a W-TENG whose operating condition for wind speed is below 3 m/s by adopting a rear-fixed film structure instead of a conventional structure. The rear-fixed film refers to the fluttering film being freestanding on the front-side and fixed on the rear-side, where the front- and rear-sides are the wind inlet and outlet, respectively. The WCT-RNG enables the W-TENG to operate below a 3 m/s wind velocity. Because of this, the working time of the WCT-RNG is dramatically enhanced from only 8-42% at an average altitude above sea level. As the capability of operating at low wind speeds is significantly improved, a WCT-RNG becomes more useful and practical for generating both power and true random numbers in a single device. The device can thereby lead to the construction of a self-powered TRNG and secure communication for Internet of Things (IoT) devices in various environments, even under a gentle breeze. In this study, we explain the design of a WCT-RNG structure and also evaluate its randomness by using an NIST SP 800-22 B test suite with a reliability test. | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.title | Cryptographic Triboelectric Random Number Generator with Gentle Breezes of an Entropy Source | - |
dc.type | Article | - |
dc.identifier.wosid | 001146669200096 | - |
dc.identifier.scopusid | 2-s2.0-85182465371 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 1 | - |
dc.citation.publicationname | SCIENTIFIC REPORTS | - |
dc.identifier.doi | 10.1038/s41598-024-51939-2 | - |
dc.contributor.localauthor | Choi, Yang-Kyu | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | AUTOCORRELATION | - |
dc.subject.keywordPlus | POWER | - |
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