Digital certificate storage, acquisition method and device
A technology of digital certificates and storage devices, which is applied in the storage and acquisition of digital certificates, and can solve problems such as difficulties in storing digital certificates
Active Publication Date: 2016-02-10
GUANGDONG CERTIFICATE AUTHORITY
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Problems solved by technology
[0006] Based on this, it is necessary to provide a method and device for storing and obtaining digital certificates in order to solve the technical problem that digital certificates in the prior art are difficult to store in space-limited media
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[0072] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0073] Such as figure 1 Shown is a digital certificate storage method of the present invention, including:
[0074] Step S101, constructing a virtual data mapping table according to the digital certificate, the virtual data mapping table including nodes identifying the digital certificate;
[0075] Step S102, segmenting the digital certificate to obtain at least one segment file, and the segment file offset address, segment file length, and segment file check value corresponding to the segment file, the The segment file offset address is used to identify the position of the first byte of the segment file in the entire certificate data, and the check value of the segment file is calculated after verifying all bytes of the segment file The verification result value obtained, the length of the segmented file is the total number of byte...
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The invention relates to the related technical field of digital certificates, in particular to a storage and acquisition method and device of a digital certificate. The storage method includes creating a virtual data mapping table, performing segment processing on the digital certificate, allocating a segment file storage address to each segment file, storing the segment files at the corresponding segment file storage addresses, creating a unique file identifier for each segment file at a node of the virtual data mapping table, and writing the virtual data mapping table in a certificate medium used for storing the digital certificate. The digital certificate is stored in segments, so that certificate data volume stored on the certificate medium with limited space is significantly lower than certificate total data volume, the digital certificate can be beneficially applied and popularized to various media which are low in cost, small in storage space and mass in issuing, and more application service data irrelevant to the certificate can be stored in the certificate medium beneficially.
Description
technical field [0001] The present invention relates to the technical field related to digital certificates, in particular to methods and devices for storing and obtaining digital certificates. Background technique [0002] The content of the digital certificate is signed by the certificate authority (CertificateAuthority, CA), which strictly guarantees its data integrity, and the data integrity must also be guaranteed when the digital certificate is transmitted and stored, otherwise it will be regarded as an invalid certificate . Therefore, when storing a digital certificate in the prior art, the digital certificate is usually stored in a certificate medium as a complete data file. [0003] At present, the country strictly requires legal CAs to implement a dual-certificate system. This makes it necessary to store at least two certificates, a signature certificate and an encryption certificate, in one certificate medium. At the same time, the country is also vigorously pr...
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IPC IPC(8): G06F12/02G06F11/10G06F17/30
Inventor 刘磊廖卫民汪毅张永强刘镪
Owner GUANGDONG CERTIFICATE AUTHORITY