Beijing Jingdong Shangke Information Technology Co., Ltd.

Jd.com American Technologies Corporation

Qiuxiang Dong

Jimmy Su

Yueh-Hsun Lin

Wei Gao

A method and system for searching encrypted data using wildcard keywords. The method includes: obtaining, by a first computing device, a keyword for data to be encrypted, where the keyword has a fixed length; generating a sequence of primes; determining corresponding one prime from the sequence of primes for each character of the keyword; and defining a product of the corresponding primes of the characters of the keyword as index of the encrypted data, where the index can be searched using a wildcard search keyword.

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Mountain View, CA, United States of America

Qiuxiang Dong