Distributed Encryption and Decryption Algorithms

摘要

In this paper, we decribe distributed encryption and decryption algorithms. Thesealgorithms are required in order to make a dependable distribution data storage system in which data is stored in an encrypted form resilient to a number of arbitrarily faulty nodes in the system. By execution of these algorithms, a group of 'n' nodes is able to encrypt or decrypt data with any secret cryptographic function in the system in the presence of up to 't' arbitrarily faulty nodes, whereas the following requirements are met: loss of information of up to 't' nodes never leads to loss of any cryptographic key; 't' or less nodes are unable to compute a secret cryptographic function and encrypt or decrypt data with it;