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1. (WO2017166560) METHOD AND SYSTEM FOR INSTALLING PROGRAM USING DIGITAL SIGNATURE

Pub. No.:    WO/2017/166560    International Application No.:    PCT/CN2016/093436
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Sat Aug 06 01:59:59 CEST 2016
IPC: H04L 29/06
H04L 9/32
G06F 21/51
Applicants: FUJIAN LANDI COMMERCIAL EQUIPMENT CO., LTD
福建联迪商用设备有限公司
Inventors: CHEN, Feifei
陈菲菲
PENG, Botao
彭波涛
MENG, Luqiang
孟陆强
Title: METHOD AND SYSTEM FOR INSTALLING PROGRAM USING DIGITAL SIGNATURE
Abstract:
The present invention discloses a method for installing a program using a digital signature. The method comprises: signing an original document to generate a signed document; verifying, by a terminal, whether a working public key certificate and signature data in the signed document are authentic; if the verification is successful, then installing a program according to a profile document in the signed document. According to the method described above, the present invention adds a profile customization on the basis of a custom root certificate to meet the customization requirements of different customers of a same operator, thereby ensuring that a program signed by a customer cannot be downloaded to a terminal of a different customer, and the programs signed by the operator can be downloaded to the terminals of all customers, thereby facilitating maintenance of an operation system.