Android information encryption system and method based on national cryptographic algorithm

A technology of information encryption and national encryption algorithm, applied in the field of Android information encryption system based on national encryption algorithm, can solve the problems of unsuitable encrypted data volume, complex encryption algorithm, slow encryption speed, etc., to achieve easy promotion and implementation, encryption and decryption High efficiency, taking into account the effect of safety

Inactive Publication Date: 2019-11-26
BEIJING ELECTRONICS SCI & TECH INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the key must be secretly distributed and exchanged in a secure manner, which makes the distribution of keys for symmetric ciphers often complicated and expensive;
[0006] (2) Using a single asymmetric cipher, the encryption efficiency is low
However,

Method used

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  • Android information encryption system and method based on national cryptographic algorithm
  • Android information encryption system and method based on national cryptographic algorithm
  • Android information encryption system and method based on national cryptographic algorithm

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Embodiment Construction

[0041] The solution of the present invention is realized by the following scheme: the sender enters the plaintext to be encrypted and sent in the input text box, and adds the mobile phone number of the receiver in the contact area, clicks the encrypt and send button, and the SM4 algorithm can be encrypted After encrypting the ciphertext and SM2 algorithm, the key of the SM4 algorithm and the digital signature are sent to the recipient; after receiving the ciphertext, the recipient enters the ciphertext into the corresponding text box area, and clicks the decryption button to see the plaintext.

[0042] Such as figure 1 As shown, the Android information encryption system based on the national secret algorithm of the present invention includes four modules: input information encoding, mixed encryption and decryption of SM2 algorithm and SM4 algorithm, database importing contacts, and digital signature authentication.

[0043] Input information encoding module. It is easy to rea...

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Abstract

The invention relates to an Android information encryption system and method based on a national cryptographic algorithm. The method is based on a hybrid cryptosystem combining an SM4 algorithm and anSM2 algorithm; the SM4 algorithm is adopted to encrypt the plaintext, the encryption efficiency is improved, the resource consumption is reduced, the elliptic curve encryption algorithm is adopted toencrypt the secret key for information encryption to ensure the security of the plaintext in the transmission process, and meanwhile, the security hash algorithm is adopted to perform hash comparisonon the plaintext before and after receiving and transmitting to verify the information integrity.

Description

technical field [0001] The present invention relates to the field of information security, in particular to an Android information encryption system and method based on a national secret algorithm. Background technique [0002] The issue of information security has always been one of the focal issues that the world continues to pay attention to. Whether information can be transmitted safely is related to everyone's own privacy and security. With the continuous development of modern communications and the continuous improvement of the performance of mobile terminals, mobile terminals such as mobile phones have entered the era of smart digital, communication through smart phones has become more and more widespread, and communication services have become more and more diversified. Information service is a widely used communication service. People send and receive personal and business information through information, but the transmission of information faces security problems,...

Claims

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Application Information

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IPC IPC(8): H04L9/06H04L9/08H04L9/30H04L9/32
CPCH04L9/0643H04L9/085H04L9/0861H04L9/3066H04L9/3247
Inventor 王志强池亚平王兵张健毅张翼钱榕张南峰张克君董宏宇饶晨雨李瑞庆赵重源余泽峰纪曦
Owner BEIJING ELECTRONICS SCI & TECH INST
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