Helper Data Aware Cloning Method for Physical Unclonable Function

2017 ◽  
Author(s):  
Masaya Yoshikawa ◽  
Yusuke Nozaki
Keyword(s):  
Physical Unclonable Function ◽  
Cloning Method ◽  
Helper Data

Small Scale and Low Latency Oriented Neural Network Physical Unclonable Function and its Evaluation

2020 ◽  
Vol 140 (12) ◽  
pp. 1297-1306
Author(s):  
Shu Takemoto ◽  
Kazuya Shibagaki ◽  
Yusuke Nozaki ◽  
Masaya Yoshikawa
Keyword(s):  
Neural Network ◽  
Small Scale ◽  
Low Latency ◽  
Physical Unclonable Function

scholarly journals An Improved Fuzzy Vector Signature with Reusability

2020 ◽  
Vol 10 (20) ◽  
pp. 7141
Author(s):  
Ilhwan Lim ◽  
Minhye Seo ◽  
Dong Hoon Lee ◽  
Jong Hwan Park
Keyword(s):  
Sampling Method ◽  
Performance Comparison ◽  
Error Rates ◽  
Efficiency Improvement ◽  
Fuzzy Extractor ◽  
Authentication Protocols ◽  
Biometric Data ◽  
Single User ◽  
Helper Data ◽  
Fuzzy Vector

Fuzzy vector signature (FVS) is a new primitive where a fuzzy (biometric) data w is used to generate a verification key (VKw), and, later, a distinct fuzzy (biometric) data w′ (as well as a message) is used to generate a signature (σw′). The primary feature of FVS is that the signature (σw′) can be verified under the verification key (VKw) only if w is close to w′ in a certain predefined distance. Recently, Seo et al. proposed an FVS scheme that was constructed (loosely) using a subset-based sampling method to reduce the size of helper data. However, their construction fails to provide the reusability property that requires that no adversary gains the information on fuzzy (biometric) data even if multiple verification keys and relevant signatures of a single user, which are all generated with correlated fuzzy (biometric) data, are exposed to the adversary. In this paper, we propose an improved FVS scheme which is proven to be reusable with respect to arbitrary correlated fuzzy (biometric) inputs. Our efficiency improvement is achieved by strictly applying the subset-based sampling method used before to build a fuzzy extractor by Canetti et al. and by slightly modifying the structure of the verification key. Our FVS scheme can still tolerate sub-linear error rates of input sources and also reduce the signing cost of a user by about half of the original FVS scheme. Finally, we present authentication protocols based on fuzzy extractor and FVS scheme and give performance comparison between them in terms of computation and transmission costs.

scholarly journals A Physical Unclonable Function Using a Configurable Tristate Hybrid Scheme With Non-Volatile Memory

2021 ◽  
Vol 2 ◽  
pp. 31-40
Author(s):  
Jiang Li ◽  
Yijun Cui ◽  
Chongyan Gu ◽  
Chenghua Wang ◽  
Weiqiang Liu ◽  
...  
Keyword(s):  
Physical Unclonable Function ◽  
Hybrid Scheme ◽  
Non Volatile Memory ◽  
Volatile Memory

scholarly journals Ultra-Low Power Oscillator Collapse Physical Unclonable Function Based on FinFET

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 27696-27707
Author(s):  
Amin A. Zayed ◽  
Hanady Hussein Issa ◽  
Khaled A. Shehata ◽  
Hani Fikry Ragai
Keyword(s):  
Low Power ◽  
Physical Unclonable Function ◽  
Ultra Low Power ◽  
Power Oscillator

scholarly journals Identification and Target-Modification of SL-BBI: A Novel Bowman–Birk Type Trypsin Inhibitor from Sylvirana latouchii

Biomolecules ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1254 ◽  
Author(s):  
Xi Chen ◽  
Dong Chen ◽  
Linyuan Huang ◽  
Xiaoling Chen ◽  
Mei Zhou ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Trypsin Inhibitor ◽  
Inhibitory Activity ◽  
Membrane Damage ◽  
Antiproliferative Effects ◽  
Docking Simulations ◽  
Cell Membrane Damage ◽  
Action Mode ◽  
Trypsin Inhibition ◽  
Cloning Method

The peptides from the ranacyclin family share similar active disulphide loop with plant-derived Bowman–Birk type inhibitors, some of which have the dual activities of trypsin inhibition and antimicrobial. Herein, a novel Bowman–Birk type trypsin inhibitor of the ranacyclin family was identified from the skin secretion of broad-folded frog (Sylvirana latouchii) by molecular cloning method and named as SL-BBI. After chemical synthesis, it was proved to be a potent inhibitor of trypsin with a Ki value of 230.5 nM and showed weak antimicrobial activity against tested microorganisms. Modified analogue K-SL maintains the original inhibitory activity with a Ki value of 77.27 nM while enhancing the antimicrobial activity. After the substitution of active P1 site to phenylalanine and P2′ site to isoleucine, F-SL regenerated its inhibitory activity on chymotrypsin with a Ki value of 309.3 nM and exhibited antiproliferative effects on PC-3, MCF-7 and a series of non-small cell lung cancer cell lines without cell membrane damage. The affinity of F-SL for the β subunits in the yeast 20S proteasome showed by molecular docking simulations enriched the understanding of the possible action mode of Bowman–Birk type inhibitors. Further mechanistic studies have shown that F-SL can activate caspase 3/7 in H157 cells and induce apoptosis, which means it has the potential to become an anticancer agent.

A new cloning method for antibody-forming lymphoblastoid cells

1986 ◽  
Vol 94 (1-2) ◽  
pp. 201-208 ◽  
Author(s):  
Slawomir Kosinski ◽  
Ulrich Hämmerling
Keyword(s):  
Lymphoblastoid Cells ◽  
Cloning Method
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