Inventors
Juan Alberto Garay, Rosario Gennaro, Charanjit Singh Jutla, Tal D Rabin
Publication date
1999/11/23
Patent office
US
Patent number
5991414
Application number
08928982
Description
Retrieval of Information (SSRI) guarantees that also the process of Storing the information is correct even when Some processorS fail. A user interacts with the Storage System by depositing a file and receiving a proof that the deposit was correctly executed. The user interacts with a single distin guished processor called the gateway. The mechanism enables Storage in the presence of both inactive and mali ciously active faults, while maintaining (asymptotical) space optimailty. This mechanism is enhanced with the added requirement of confidentiality of information; ie, that a collusion of processors should not be able to learn anything about the information. Also, in this case Space optimality is preserved.
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