Alibaba Group Holding Limited
DEVICE AND METHOD FOR INCREASING THE SECURITY OF A DATABASE

Abstract:

A data processing method includes receiving a query word and in response to receiving the query word, searching a plurality of stored irreversibly encrypted substrings corresponding to the query word, where each of the plurality of stored irreversibly encrypted substrings is associated with a string of reversibly encrypted raw data. The data processing method further includes in response to searching, outputting one or more of the plurality of stored irreversibly encrypted substrings and the associated string of reversibly encrypted raw data corresponding to the query word as a query result.