A file encryption method based on Linux operating system with CPK authentication

An operating system and file encryption technology, applied in the field of information security, can solve the problems of low encryption energy, slow authentication speed, easy to be deciphered, etc., to achieve the effect of fast authentication speed, ensure security, and solve the hidden danger of key security.

Inactive Publication Date: 2011-05-11
SICHUAN YIHENG TECH DEV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the encryption energy is low, easy to be deciphered, third-party authentication is required, and the authentication speed is slow

Method used

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  • A file encryption method based on Linux operating system with CPK authentication
  • A file encryption method based on Linux operating system with CPK authentication
  • A file encryption method based on Linux operating system with CPK authentication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] see figure 2 , this method consists of the following steps:

[0024] 1), the Linux operating system selects the plaintext file that needs to be encrypted according to the needs of the user,

[0025] 2), after the file is selected, the Linux operating system will generate a set of random key data;

[0026] 3), the Linux operating system uses the key data and the AES algorithm to encrypt the selected plaintext file to generate ciphertext data;

[0027] 4), the Linux operating system carries out CPK authentication encoding to the key data in addition, and constitutes a file identification header;

[0028] 5), then the file identification header and the ciphertext data are integrated into a new ciphertext file by the Linux operating system;

[0029] 6), the Linux operating system stores the above-mentioned ciphertext file in a carrier again;

[0030] 7), when using this file, after the Linux operating system extracts the ciphertext file in the carrier, carry out CPK au...

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PUM

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Abstract

The invention discloses a safety identifying technique of voice communication under network environment based on file coding method of Linux operational system with CPK identification, which comprises the following steps: 1) selecting the coded plaintext file; 2) generating a group of random key data; 3) coding the plaintext file according to the key data; forming the key data; 4) transmitting the key data into CPK identification system to do CPK coding; forming the identification head; 5) writing the identification head into the key data; forming new key file; 6) reserving the file into carrier; 7) decoding the CPK identification of the key file when using the file; extracting the key data; 8) decoding the key; obtaining the plaintext file; fitting for coding kinds of plaintext file.

Description

technical field [0001] The invention relates to information security technology, in particular to file security authentication technology in network environment. Background technique [0002] With the rapid development of computer technology, especially the rapid development of Internet technology, all kinds of documents can be shared in the network, and the use of remote computer services has brought great convenience to people just like on a local computer. However, due to the sharing of files, its security is not easy to be guaranteed. In order to improve the security of files, the encryption method of customized key is widely used at present. The specific encryption process is as follows: figure 1 shown. In addition, Chinese Patent Publication No. CN1350382 discloses a "method for implementing PKI-based VPN key exchange". The disadvantage of this method is that the encryption energy is low, easy to be deciphered, third-party authentication is required, and the authent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/16H04L9/08H04L9/32
Inventor 南相浩赵广宇彭旭赵建国林容生
Owner SICHUAN YIHENG TECH DEV
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