As electronic cash (E-cash) is one of the most attractive electronic payment forms, electronic cash system has attracted lots of researchers' attention at home and aboard.

电子现金是电子支付最有吸引力的方式之一，电子现金系统的研究受到了国内外很多学者的关注。

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As electronic cash (E-cash) is one of the most attractive electronic payment forms, electronic cash system has attracted lots of researchers' attention at home and aboard.

电子现金是电子支付最有吸引力的方式之一，电子现金系统的研究受到了国内外很多学者的关注。

youdao