Unlock instant, AI-driven research and patent intelligence for your innovation.

Data encryption transmission method and device based on block chain

A data encryption and transmission method technology, applied in the blockchain field, can solve problems such as complicated calculation process and low efficiency of data encryption transmission, and achieve the effect of improving security, improving efficiency, and ensuring security

Pending Publication Date: 2022-03-25
BANK OF CHINA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can resist dictionary attacks, the calculation process with the aid of the block cipher algorithm is very complicated, and it is easy to cause low efficiency of data encryption transmission.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data encryption transmission method and device based on block chain
  • Data encryption transmission method and device based on block chain
  • Data encryption transmission method and device based on block chain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0037] The examples shown in the present invention refer to the following nouns, which are explained as follows:

[0038] Affine transformation: It means that in geometry, a vector space is transformed into another vector space by a linear transformation followed by a translation. Affine cipher is a substitution cipher based on affine transformation, that is, all letters in the alphabet are encrypted by a unary one-time mathematical equation, corresponding to values ​​or converted back to letters.

[0039] One-way hash function: Also known as Hash function and hash f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a block chain-based data encryption transmission method and device, and relates to the technical field of block chains, and the method comprises the steps: carrying out the hash value calculation of to-be-transmitted data, and obtaining the hash value of the to-be-transmitted data; performing digital coding on characters in the hash value to obtain a digital character string of the hash value; according to the encryption key, performing affine transformation processing on the digital character string of the hash value to obtain a digital character string after affine transformation processing; the encryption key is generated according to a digital character string of a hash value and is stored in a block chain network; and emitting the digital character string after affine transformation processing. According to the method, dictionary attacks can be resisted, and the data encryption transmission efficiency and security are improved.

Description

technical field [0001] The present invention relates to the technical field of blockchain, in particular to a data encryption transmission method and device based on blockchain. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] At present, password-based encryption (Password Based Encrypted, PBE) is generally used to implement encrypted transmission of data. The principle is that the user performs hash value calculation after inputting the data to be transmitted (such as password information) at the front end, and the data transmission in the background does not directly transmit the plain text of the data, but transmits the hash value of the data. After receiving the message from the front end, the background stores the hash value of the data, or retrieves the hash value of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L9/40H04L9/32H04L9/06H04L67/104
CPCH04L63/0428H04L9/3236H04L9/0618H04L67/104
Inventor 赵旭东雷雨薛贝娜
Owner BANK OF CHINA