Data defense and secrete sharing of the National military

• Main Authors: Ming-Wu Lin, 林明武
• Other Authors: Yi-Bin Lu
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/79789264324493569479

碩士 === 國防大學中正理工學院 === 電子工程研究所 === 91 === Transmitting documents in the computer network is generally unsafe due to the open structure of the network. In the depth defense point of view, the document defense is the last line of defense. However, the key management is an essential factor in the document defense. Using the technology and the strategy of secrete sharing can help to disperse and reduce the hazards of key management. In this thesis, the verifiable multi-secret sharing scheme is proposed to realize the threshold strategy of secret reconstruction in hierarchical organizations. In our proposed scheme, participants are classified into several hierarchical disjoint levels. Each participant on the defined level provides a secret sharing via a pre-defined threshold. When the number of the presence participants is less than the predefined threshold at a target level, the participants on the higher levels are requested to support them for reconstructing the shared secret. Thus, the high level participants who have authorities and responsibilities higher than that of the low level participants can help to reconstruct the shared secrets.