The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 04, 2019

Filed:

Dec. 27, 2016
Applicant:

Alibaba Group Holding Limited, George Town, Grand Cayman, KY;

Inventors:

Peng Yuan, Hangzhou, CN;

Zhiqiang Wang, Hangzhou, CN;

Shuanlin Liu, Hangzhou, CN;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0858 (2013.01); H04L 9/0852 (2013.01); H04L 9/0819 (2013.01); H04L 9/0833 (2013.01); H04L 9/14 (2013.01);
Abstract

One embodiment provides a system for facilitating distribution of quantum keys. During operation, the system receives, from a requester, a first request for a key, wherein the first request indicates a requested length for the key and identifying information of the requester. The system determines whether a subset pool of a general pool of keys is allocated to the requester based on the identifying information of the requester, wherein the keys in the general pool are generated by a quantum engine. In response to determining that a subset pool is not allocated to the requester, the system allocates a subset pool to the requester. The system obtains from the allocated subset pool a key with a length matching the requested length, and the system returns the obtained key to the requester.


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