Proactive Secret Sharing (PSS) scheme is a method to periodically renew n secret shares in a (k, n) threshold-based Secret Sharing Scheme (SSS) without modifying the secret, or reconstructing the secret to reproduce new shares. Traditionally, PSS schemes are developed for the Shamir's SSS which is a single SSS. Bai (2006) developed a multiple-secret sharing scheme using matrix projection. This paper presents a distributed PSS method for the matrix projection SSS. Once the new shares are updated, adversaries cannot discover the secrets from k shares which are mixed with past and present shares. 2001. He has published over 30 papers on reliability, signal processing, and information security related topics. His research areas are reliability, wireless communication, dependable secure computing, parallel array signal processing, and information fusion.Xukai Zou is a Faculty member with the Department of Computer and Information Sciences at Indiana University-Purdue University Indianapolis, USA. He completed his PhD Degree from University of Nebraska-Lincoln in 2000. His research focus is in applied cryptography, network security, and communication networks. He recently published two books and over 30 papers in security-related topics.
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