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Enciphering and deciphering method for invoking data in software

A technology of encryption and decryption, encryption algorithm, applied in the field of information security, can solve the problem of neglecting data protection

Inactive Publication Date: 2012-08-01
SECUTECH BEIJING INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the protection of the data itself generated by the software is often ignored

Method used

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  • Enciphering and deciphering method for invoking data in software
  • Enciphering and deciphering method for invoking data in software

Examples

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Assume that the source data file is stored in the C drive, and the data file name is A, such as figure 2 Its workflow is shown as follows:

[0018] Create an empty data file in the same directory, named A1, which is used to store the encrypted data file; read the data file from the source file A, use the AES encryption algorithm to encrypt the data in A, and write Into A1, before writing to A1, it is necessary to make two judgments on the encrypted file header: the encrypted file header is a part of file A1: (start to perform the judgment operation) when the encrypted file header of A1 is empty, write to it Enter the encrypted file header; when the encrypted file header of A1 is not empty, use the MD5() algorithm to make a second logical judgment on...

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Abstract

The invention discloses an enciphering and deciphering method protecting the data to be read on computer software, wherein data required to be protected is related to an enciphering lock inserted in the same computer, and the enciphering lock is required to be always available during the data reading process. AES and Hash checking MD5 are utilized to judge the enciphering and the file. The enciphering and deciphering method belongs to the field of data safety.

Description

technical field [0001] The invention relates to a data encryption and decryption method in software calling, which belongs to the technical field of information security. And it is particularly related to a data encryption and decryption method in software calling. Background technique [0002] Nowadays, in the field of software protection, encryption measures for software copyright protection and piracy prevention for software itself are widely used. However, the protection of the data itself generated by the software is often ignored. And the development of today's electronic technology allows public telecommunications to squeeze out many documents, including many confidential documents, which poses a threat to the confidentiality of documents. Encrypting data means protecting the confidentiality of files from unauthorized violations. Encryption converts plaintext into meaningless ciphertext, and decryption restores meaningless ciphertext to plaintext. In order to solv...

Claims

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Application Information

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IPC IPC(8): G06F21/24G06F21/62
Inventor 邹芬
Owner SECUTECH BEIJING INFORMATION TECH
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