Verification method and device suitable for blockchain

A verification method and blockchain technology, applied in computer security devices, instruments, electronic digital data processing, etc., can solve problems such as inability to verify the correctness of ciphertext encryption

Active Publication Date: 2020-05-15
WEBANK (CHINA) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a verification method and device suitable for blockchain, which solves the problem that the encryption correctness of ciphertext cannot be verified in the prior art

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  • Verification method and device suitable for blockchain
  • Verification method and device suitable for blockchain
  • Verification method and device suitable for blockchain

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Embodiment Construction

[0060] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application. To illustrate, rather than limit, the technical solutions of the present application, the embodiments of the present application and the technical features in the embodiments can be combined without conflict.

[0061] The nouns appearing in the embodiments of the present application are firstly explained below.

[0062] Blockchain: such as figure 1 As shown, the blockchain is a chain composed of a series of blocks. In addition to recording the data of this block, each block also records the hash value of the previous block. In this way, a chain is formed. There are two core...

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Abstract

The invention discloses a verification method and device suitable for blockchain, and the method comprises the steps that an encryption node encrypts to-be-encrypted information through a main publickey, N encryption interference values and different generators in a q-order cyclic group according to a preset encryption algorithm, and obtains an encrypted ciphertext; and the encryption node encrypts the alternative encryption information through the N alternative encryption interference values and the generators according to the encryption algorithm to obtain an alternative encryption ciphertext, and the encryption node uploads the encryption ciphertext and the ciphertext format proof to a block chain. When the method is applied to the Fintech, it is proved through a ciphertext format thatthe encryption correctness of the encrypted ciphertext can be verified on the basis that the information to be encrypted and the N alternative encryption interference values are not exposed.

Description

technical field [0001] The present invention relates to the fields of financial technology (Fintech) and blockchain (Blockchain), in particular to a verification method and device suitable for blockchain. Background technique [0002] With the development of computer technology, more and more technologies are applied in the financial field, and the traditional financial industry is gradually transforming into Fintech. However, due to the security and real-time requirements of the financial industry, higher requirements are placed on technology. requirements. At present, in the field of financial technology, the security of financial data is very important, so financial data needs to be encrypted during transmission. [0003] In the prior art, the Elgamal encryption algorithm (an asymmetric encryption algorithm based on Diffie-Hellman key exchange) is a commonly used encryption method. However, after the current Elgamal encryption algorithm is encrypted, only one ciphertext...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/64
CPCG06F21/602G06F21/64
Inventor 王朝阳严强李昊轩李辉忠张开翔范瑞彬刘雪峰裴庆祺
Owner WEBANK (CHINA)
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