Secret sharing schemes perform an important role in protecting se-cret by sharing it among multiple participants. In 1979, (t; n) threshold secret sharing schemes were proposed by Shamir and Blakley independently. In a (t; n) threshold secret sharing scheme a secret can be shared among n partic-ipants such that t or more participants can reconstruct the secret, but it can not be reconstructed b...

Nowadays the effective use of organizational knowledge and sharing it among the staff has become an strategic resource to achieve and maintain competitive advantage. For achieving such Organizations need to have strategies to improve knowledge sharing. The purpose of this study was to investigate the relationship between organizational justice and trust, culture and trust and knowledge sharing ...

The Secret Sharing scheme assumes long-lived shares. However the protection provided for such long lived and sensitive shares may be insufficient. The security in a system that is exposed to attacks and break-ins might become exhausted. The goal of the pro-active security scheme is to prevent the adversary from learning the secret or from destroying it. The Shamir’s Secret Sharing is pioneer me...

We propose efficient secret sharing schemes realizing general access structures. Our proposed schemes are perfect secret sharing schemes and include Shamir’s (k, n)-threshold schemes as a special case. Furthermore, we show that a verifiable secret sharing scheme for general access structures is realized by one of the proposed schemes. key words: (k, n)-threshold scheme, general access structure...

purpose: this research seeks to determine the level of knowledge sharing, the absorptive capacity, and the innovation capability at the central libraries of the state universities of tehran in 1393. besides, it seeks to identify the relationship between knowledge sharing and innovation capability in the library. methodology: this applied research is carried out using survey method – correlation...

background nowadays task sharing is a way to optimize utilization of human resources for health. this study was designed to assess the effect of task sharing, mutually between midwives and family health workforces (fhws), on the number of needed staff across the iranian health posts.   methods the workload and required number of midwives and fhws in a health post were calculated and compared in...