A Novel Adaptive Proactive Secret Sharing without a Trusted Party

  • Xiuqun Wang
  • Published 2011 in IACR Cryptology ePrint Archive


A (t + 1, n) proactive secret sharing is to protect a secret in long-lived system by distributing it to a group of n participants and refreshing their shares periodically in this fixed group, while any t+1 and more than t+1 shares can reconstruct the secret. In some environment, it needs to change not only the number of participants n but also the threshold… (More)


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