Impracticality of efficient PVSS in real life security standard

  • Authors:
  • Kun Peng

  • Affiliations:
  • Institue for Infocomm Research, Singapore

  • Venue:
  • ACISP'11 Proceedings of the 16th Australasian conference on Information security and privacy
  • Year:
  • 2011

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Abstract

This paper presents ongoing work toward employment of RSA encryption in PVSS. Two PVSS schemes are shown to be efficient only when very small RSA public keys like 3 are employed to encrypt the shares. However, too small RSA public keys like 3 are insecure in the PVSS schemes as they cannot apply padding to the encrypted messages. When practical larger RSA public keys are employed, the two PVSS schemes have to process extremely large integers and become intolerably inefficient.