Title:
KEY DOWNLOADING METHOD, CLIENT, CRYPTOGRAPHIC DEVICE AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/078225
Kind Code:
A1
Abstract:
Provided are a key downloading method, a client, a cryptographic device and a terminal device. The key downloading method comprises: a client sending an initial key downloading request to a background server, and receiving a server identity certificate issued by the background server and forwarding same to a cryptographic device; the client acquiring a device identity ciphertext fed back by the cryptographic device and sending same to the background server; the client acquiring a server identity ciphertext and an initial key ciphertext generated by the background server, and sending the server identity ciphertext to the cryptographic device; and after the identity verification performed by the cryptographic device on the background server succeeds, the client issuing the initial key ciphertext to the cryptographic device. In the present application, a cryptographic device, a client and a background server realize identity verification therebetween by means of encryption, such that an initial key can be securely downloaded into the cryptographic device in a production environment, and there are no limitations to operation places, thereby reducing the personnel management cost and improving the security and effectiveness of key downloading.
Inventors:
LI LIJUN (CN)
PENG RONGSHOU (CN)
PENG RONGSHOU (CN)
Application Number:
PCT/CN2019/109896
Publication Date:
April 23, 2020
Filing Date:
October 08, 2019
Export Citation:
Assignee:
PAX COMPUTER TECH SHENZHEN CO LTD (CN)
International Classes:
H04L9/08; H04L9/32; H04L29/06
Foreign References:
| CN109274500A | 2019-01-25 | |||
| CN103220270A | 2013-07-24 | |||
| CN103220271A | 2013-07-24 | |||
| CN103237004A | 2013-08-07 | |||
| CN107888379A | 2018-04-06 | |||
| US20070288992A1 | 2007-12-13 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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