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Alliance chain encryption method based on bilinear mapping technology

A technology of bilinear mapping and encryption method, applied in key distribution, can solve problems such as efficiency and security defects, and achieve the effect of improving efficiency and improving efficiency

Active Publication Date: 2020-04-17
HANGZHOU YUNXIANG NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, PKI technology includes symmetric cryptographic algorithms such as DES, AES, etc., asymmetric cryptographic algorithms such as RSA, ECC, etc., and hash or hash functions such as SHA, MD5, etc. The existing PKI technology can basically meet the security of communication on the chain, but There are still deficiencies in efficiency and safety

Method used

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  • Alliance chain encryption method based on bilinear mapping technology
  • Alliance chain encryption method based on bilinear mapping technology
  • Alliance chain encryption method based on bilinear mapping technology

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Embodiment Construction

[0046] In order to clearly explain the present invention and make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention, in order to Those skilled in the art can implement it by referring to the text of the description. The technology of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Z n * means Z n The multiplicative group of reversible elements in , Z n is an integer set of n, user U i .

[0047] 1. figure 1 It shows an implementation form of the overall model construction of the alliance chain encryption based on bilinear mapping technology according to the present invention, and its construction process is as follows:

[0048] Step 1: First select the system...

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Abstract

The invention discloses an alliance chain encryption method based on a bilinear mapping technology. The method comprises the steps of (1) achieving the construction of an alliance chain encryption system based on the bilinear mapping technology, including the generation and setting of a public key and a private key, and the selection of an encryption function; (2) encrypting a secret key based ona bilinear mapping technology, and distributing the secret key in a secret key negotiation mode; and (3) based on the model and the secret key distribution method, realizing secret key exchange, plaintext encryption and digital signature processes based on the bilinear mapping technology. According to the invention, the bilinear mapping technology is an encryption technology commonly used in cryptology; in combination with a hash function, a signature scheme with the characteristics of short signature, safety, high efficiency and the like is constructed for encryption, and signature verification is carried out on signatures; the encryption efficiency is improved; and the function of improving the overall working efficiency of the system is achieved.

Description

technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to an encryption method for alliance chains based on bilinear mapping technology. Background technique [0002] Blockchain technology is a collection of various technologies and is an emerging technology nowadays. Encryption technology is one of the most important basic technologies of the blockchain, which ensures the security of communication and transactions on the blockchain. Consortium chain is a kind of blockchain. The consortium chain uses PKI (Public Key Infrastructure) technology to ensure the security of the transaction process. PKI technology uses a mixed encryption method of symmetric encryption and asymmetric encryption to encrypt and protect the communication process. Asymmetric encryption is highly secure, but usually has low computing performance and requires a large amount of data encryption and decryption. Therefore, asymmetric encryption methods...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L9/08H04L29/06G06Q40/04
CPCH04L63/062H04L9/0838H04L9/3247H04L9/0825G06Q40/04H04L9/50
Inventor 黄步添罗春凤俞之贝周伟华刘振广陈建海
Owner HANGZHOU YUNXIANG NETWORK TECH
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