A new fair electronic cash scheme based on the idea of marking is proposed to prevent blackmailing which is based on the group signature technology of bilinear pairings over elliptic curves.
利用椭圆曲线上双线性对的群签名技术，提出一种新的基于标记思想的阻止勒索犯罪的公平电子货币方案。
Import and export of electronic technology and service system, our group company has import and export company of electronic equipment and accessories and after-sales service maintenance team.
电子技术进出口和服务体系，我集团公司设有电子设备及配件进出口公司和售后服务维修的团队。
Netcom steel trade under the strength of the economy of the Sichuan Netcom Electronic Technology co., Ltd, responsible for the Group of timber procurement and sales of steel products.
金网通钢贸隶属于经济实力雄厚的四川金网通电子科技有限公司，负责集团用材的采购及钢材销售。
Netcom steel trade under the strength of the economy of the Sichuan Netcom Electronic Technology co., Ltd, responsible for the Group of timber procurement and sales of steel products.
金网通钢贸隶属于经济实力雄厚的四川金网通电子科技有限公司，负责集团用材的采购及钢材销售。
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