论文标题
阈值可变秘密共享计划的量子优势
Quantum Advantage of Threshold Changeable Secret Sharing Scheme
论文作者
论文摘要
在TCSS（阈值可变秘密共享）方案中，可以更改阈值以应对股票泄漏。但是在古典TCSS中，即使参与方是诚实的，也不能保证旧股份被删除。因此，变化的阈值可能不会阻止对手重建旧股份和旧的当事人阈值。我们展示了如何机械地解决此问题。即，从机械上讲，我们可以强制更改阈值。因此，量子TCSS比经典TCS具有量子优势。
In TCSS (Threshold Changeable Secret Sharing) scheme, the threshold can be changed to deal with share leakage in the long term. But in classical TCSS, there is no guarantee that old shares are deleted even if the participated parties are honest. So, the changed threshold may not prevent an adversary from reconstructing the secret by the old shares and old threshold number of parties. We show how to tackle this problem quantum mechanically. I.e., quantum mechanically we can make the changed threshold mandatory. So, there is quantum advantage of quantum TCSS over classical TCSS.
