Anti-quantum certificate obtaining system and method based on public key pool
An acquisition method and certificate technology, which is applied in the field of secure communication, can solve the problems that the asymmetric key encryption algorithm is no longer safe and vulnerable, and achieve the effect of ensuring safety, increasing accuracy and ensuring safety
Active Publication Date: 2019-04-23
RUBAN QUANTUM TECH CO LTD
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Problems solved by technology
[0008] However, with the development of quantum computers, the classic asymmetric key encryption algorithm will no longer be safe. Regardless of encryption and decryption, digital signatures or key exchange methods, quantum computers can obtain private keys through public key calculations. Therefore, the current classic digital certificate will become vulnerable in the quantum age
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[0091] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0092] In order to better describe and illustrate the embodiments of the present application, reference may be made to one or more drawings, but the additional details or examples used to describe the drawings should not be considered as invention-creations, presently described implementations of the present application A limitation of the scope of any one of the examples or preferred modes.
[0093] It should be understood that, unle...
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The invention relates to an anti-quantum certificate obtaining method and system based on a public key pool. Participants comprise a certificate authority and users; each participant is provided witha key card; the public key pool, a private key unit and a public key pointer random number of the certificate authority are all stored in each key card; and a user public key pointer random number isfurther stored in the key card of the user. The anti-quantum certificate obtaining method comprises the following steps at a user side of generating request information comprising a certificate request, the user public key pointer random number and a user identity; signing the request information by using a signature private key; generating a true random number, and encrypting the request information and the signature by using the true random number in order to obtain a first ciphertext; encrypting the true random number by using an encryption public key of the certificate authority in order to obtain a second ciphertext; sending the first ciphertext and the second ciphertext to the certificate authorization; and receiving and verifying a certificate of authorization of the certificate authorization center.
Description
technical field [0001] The invention relates to the field of secure communication, in particular to an anti-quantum certificate acquisition system and acquisition method based on a public key pool. Background technique [0002] A digital signature (also known as a public key digital signature, electronic signature, etc.) is conceptually similar to a common physical signature written on paper, but implemented using technologies in the field of public key encryption to identify digital information. A set of digital signatures usually defines two complementary operations, one for signing and the other for verification. [0003] A digital signature is a digital string that can only be generated by the sender of the information and cannot be forged by others. This digital string is also an effective proof of the authenticity of the information sent by the sender of the information. [0004] The document integrity of a digital signature is easily verifiable (no stitching, stitchi...
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IPC IPC(8): H04L9/32H04L9/00
CPCH04L9/002H04L9/3247H04L9/3268
Inventor 富尧钟一民余秋炜
Owner RUBAN QUANTUM TECH CO LTD