An Efficient Group Signature Scheme from Bilinear Maps

نویسندگان

  • Jun Furukawa
  • Hideki Imai
چکیده

We propose a new group signature scheme which is secure if we assume the Decision Diffie-Hellman assumption, the q-Strong Diffie-Hellman assumption, and the existence of random oracles. The proposed scheme is the most efficient among the all previous group signature schemes in signature length and in computational complexity. This paper is the full version of the extended abstract appeared in ACISP 2005 [17]. key words: group signature, bilinear map, efficient

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تاریخ انتشار 2005