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Autor:
Su Yun-xue, Zhu Yue-fei
Publikováno v:
Wuhan University Journal of Natural Sciences. 9:745-748
This paper describes the research results and development of fair off-line e-cash systems so far, and points out that in these systems, the bank can compute the double-spender’s account secret key, thus the bank can impersonate the double-spender t