In this paper, we propose a method to construct an online/offiine batch verification signature scheme in a multi-signer setting. The length of the scheme is approximately 480 bits. Based on the Lysyanskaya, Rivest, Sa...In this paper, we propose a method to construct an online/offiine batch verification signature scheme in a multi-signer setting. The length of the scheme is approximately 480 bits. Based on the Lysyanskaya, Rivest, Sahai and Wolf （LRSW） assumption, this scheme is proved secure in a random oracle model, and it requires only three pairing operations for verifying n signatures from a multi-signer setting.展开更多
This analysis focuses on PIM interference under multi-band multi-signal input in mobile communication system.Unlike single band system that only odd order PIM(especially 3rd order) should be concerned,in multi-band mu...This analysis focuses on PIM interference under multi-band multi-signal input in mobile communication system.Unlike single band system that only odd order PIM(especially 3rd order) should be concerned,in multi-band multi-signal case,both odd and even order PIM could be interference source because of more complicated intermodulation,more IMPs generated and more receive bands.Especially,the 2nd order PIM may interfere more serious to receiving channel for its strong magnitude.In duplex indoor distribute system,the PIM interference is a potential problem to GSM900,DCS1800,CDMA,and even 3G system wireless services,because the PIM frequencies may fall in receive bands and interfere to the receiving channels.In radio system design and wireless channel assignment,precautions must be taken to minimize the PIM level and to avoid interfere to receiving channels.For practical use,the lower order possible PIM interference to 2G and 3G systems is calculated.展开更多
This paper designed and implemented a blockchain-based multisignature approach to digitally transform supply chain governance in multi-tier food supply chains,particularly in a geographically dispersed beef supply cha...This paper designed and implemented a blockchain-based multisignature approach to digitally transform supply chain governance in multi-tier food supply chains,particularly in a geographically dispersed beef supply chain.An exploratory case study was utilised to demonstrate the design,implementation,and evaluation of a blockchainbased multisignature approach that was deployed on the Smart Trade Networks(STN)Proof of Authority(PoA)blockchain system for data collection and validation in a beef supply chain context.The multisignature approach was implemented with a use case to track a shipment of 92 cattle and meat products through key events from farm to food service.The use-case deployment records approximately 6000 data points registered on the STN PoA blockchain system.The real-case deployment illustrates the capability of the blockchain-based multisignature approach to digitally improve beef supply chain governance by enabling whole-of-chain transparency and trustworthy information sharing and supports supply chain professionals to have a better understanding of how to unlock blockchain potential for supply chain transformation.展开更多
基金Supported by the National Natural Science Foundation of China(61072080)the Foundation of Education Bureau of Fujian Province (JK2010012)Key Project of Services for Haixia Construction in Universities of Fujian Province
文摘In this paper, we propose a method to construct an online/offiine batch verification signature scheme in a multi-signer setting. The length of the scheme is approximately 480 bits. Based on the Lysyanskaya, Rivest, Sahai and Wolf （LRSW） assumption, this scheme is proved secure in a random oracle model, and it requires only three pairing operations for verifying n signatures from a multi-signer setting.
文摘This analysis focuses on PIM interference under multi-band multi-signal input in mobile communication system.Unlike single band system that only odd order PIM(especially 3rd order) should be concerned,in multi-band multi-signal case,both odd and even order PIM could be interference source because of more complicated intermodulation,more IMPs generated and more receive bands.Especially,the 2nd order PIM may interfere more serious to receiving channel for its strong magnitude.In duplex indoor distribute system,the PIM interference is a potential problem to GSM900,DCS1800,CDMA,and even 3G system wireless services,because the PIM frequencies may fall in receive bands and interfere to the receiving channels.In radio system design and wireless channel assignment,precautions must be taken to minimize the PIM level and to avoid interfere to receiving channels.For practical use,the lower order possible PIM interference to 2G and 3G systems is calculated.
基金This study was supported by funding from Food Agility CRC Ltd.and Future Food Systems CRC Ltd.,funded under the Commonwealth Government CRC Program.The CRC Program supports industry-led collaborations among industry,researchers,and the community.
文摘This paper designed and implemented a blockchain-based multisignature approach to digitally transform supply chain governance in multi-tier food supply chains,particularly in a geographically dispersed beef supply chain.An exploratory case study was utilised to demonstrate the design,implementation,and evaluation of a blockchainbased multisignature approach that was deployed on the Smart Trade Networks(STN)Proof of Authority(PoA)blockchain system for data collection and validation in a beef supply chain context.The multisignature approach was implemented with a use case to track a shipment of 92 cattle and meat products through key events from farm to food service.The use-case deployment records approximately 6000 data points registered on the STN PoA blockchain system.The real-case deployment illustrates the capability of the blockchain-based multisignature approach to digitally improve beef supply chain governance by enabling whole-of-chain transparency and trustworthy information sharing and supports supply chain professionals to have a better understanding of how to unlock blockchain potential for supply chain transformation.
