ENCRYPTED SEARCH CLOUD SERVICE WITH CRYPTOGRAPHIC SHARING

A method for sharing read access to a document (200) includes receiving a shared read access command (250) from a sharor (10a) sharing read access to a sharee for the document stored on memory hardware (150), and receiving a shared read access request (260) from the sharee (10b). The shared read acc...

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Bibliographic Details
Main Authors YEO KEVIN, PATEL SARVAR, PERSIANO GIUSEPPE
Format Patent
LanguageChinese
English
Published 20.12.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A method for sharing read access to a document (200) includes receiving a shared read access command (250) from a sharor (10a) sharing read access to a sharee for the document stored on memory hardware (150), and receiving a shared read access request (260) from the sharee (10b). The shared read access command includes an encrypted value (256) and a first cryptographic share value (252) based on awrite key (204), a read key (202), a document identifier, and a sharee identifier. The method also includes multiplying the first and second cryptographic share values to determine a cryptographic read access value (224). The cryptographic read access value authorizes read access to the sharee for the document. The method also includes storing a read access token (222) for the sharee including the cryptographic read access value and the encrypted value in a user read set (220) of the memory hardware. 一种用于共享对文件(200)的读取访问权的方法包括：从向共享对象共享对存储器硬件(150)上存储的文件的读取访问权的共享者(10a)接收共享读取访问权命令(250)；以及从共享对象(10b)接收共享读取访问权请求(260)。共享读取访问
Bibliography:Application Number: CN201880029795