指定恢复人的可阻止恢复秘密共享方案

基于拉格朗日插值公式和双变量单向函数，提出一种新的秘密共享方案．该方案有如下特点：秘密分发者如果不想让参与者恢复秘密，参与者不能正确恢复出秘密；不需要安全信道；参与者自选秘密份额；参与者之间能有效的检测和识别其他成员的欺骗行为，因而具有较高的安全性和实用性．

A Threshold Secret Sharing Scheme to Prevent from Reconstruction with Specified

Based on the method of Lagrange interpolation and the two - variable one - way function, a new secret sharing scheme could prevent from reconstruction was proposed. The scheme includes a lot of property as follows：If the dealer would not wish the participants reconstruct the secret, the participants could not get the secret ;There was no secure channel;Each participant selected his shadow by himself; The efficient solutions against multiform cheating of any participant were proposd, therefore, the proposed scheme has practicability and high security.