WU Chunhui, CHEN Xiaofeng, LONG Dongyang, “A New Effcient On-line/Off-line Threshold Signature Scheme,” Chinese Journal of Electronics, vol. 18, no. 2, pp. 321-324, 2009,
Citation:
WU Chunhui, CHEN Xiaofeng, LONG Dongyang, “A New Effcient On-line/Off-line Threshold Signature Scheme,” Chinese Journal of Electronics, vol. 18, no. 2, pp. 321-324, 2009,
WU Chunhui, CHEN Xiaofeng, LONG Dongyang, “A New Effcient On-line/Off-line Threshold Signature Scheme,” Chinese Journal of Electronics, vol. 18, no. 2, pp. 321-324, 2009,
Citation:
WU Chunhui, CHEN Xiaofeng, LONG Dongyang, “A New Effcient On-line/Off-line Threshold Signature Scheme,” Chinese Journal of Electronics, vol. 18, no. 2, pp. 321-324, 2009,
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.