WU Chunhui, CHEN Xiaofeng, LONG Dongyang. A New Effcient On-line/Off-line Threshold Signature Scheme[J]. Chinese Journal of Electronics, 2009, 18(2): 321-324.
Citation: WU Chunhui, CHEN Xiaofeng, LONG Dongyang. A New Effcient On-line/Off-line Threshold Signature Scheme[J]. Chinese Journal of Electronics, 2009, 18(2): 321-324.

A New Effcient On-line/Off-line Threshold Signature Scheme

  • Received Date: 2007-12-01
  • Rev Recd Date: 2008-12-01
  • Publish Date: 2009-05-25
  • It seems that all existing on-line/offline (threshold) signature schemes based on ShamirTauman's paradigm suffer from the key exposure problemof chameleon hashing. In this paper, we firstly proposea new effcient generic on-line/off-line threshold signaturescheme without key exposure. Compared with Crutchfieldet al.'s scheme, the advantages of our scheme are the lowercomputation and storage cost in off-line phase and lowercommunication cost in on-line phase. Meanwhile, we proveour scheme can achieve the desired security notions.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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