Data protection method of for secure computers

Abstract

The invention discloses a data protection method for secure computers. A designed encryption algorithm is used for carrying out encryption through the following steps of: in a plurality of stored non-binary source operands, selecting a number by each source operand in sequence, and carrying out current bit operation on the selected numbers by adopting a random operation instruction until all the numbers of the plurality of source operands are selected to obtain a target operand; selecting a specific plaintext segment from each input biological characteristic by using an extraction operation rule in a private key, and carrying out encryption operation on the obtained specific plaintext segment and the obtained target operand through randomly selecting an encryption algorithm so as to obtain a specific ciphertext segment; and extracting a specific random number by taking the specific ciphertext segment as a specific private key, carrying out operation by using the specific random number so as to generate a redundant segment, and carrying out encryption operation on the specific ciphertext segment, the rest plaintext segment and the redundant segment through randomly selecting an encryption algorithm so as to obtain a final ciphertext.

Description

technical field [0001] The invention relates to computer data processing technology, in particular to a data protection method for a safe computer. Background technique [0002] In the computer software protection technology, unless a special encryption algorithm is used, the plaintext data of the software will inevitably appear in the computer memory and registers. In the computer, even if the data is encrypted and stored using the set encryption algorithm, when the computer performs calculations on the stored encrypted data, it also needs to use the decryption algorithm corresponding to the encryption algorithm, and then decrypt the stored encrypted data. Therefore, in the process of computer processing, plaintext data will appear, so the security of software data cannot be guaranteed. [0003] Usually, software crackers can analyze the encryption algorithm by tracking and comparing the plaintext data that appears during computer processing, and decrypt the stored encrypt...

AI Technical Summary

Problems solved by technology

In the computer, even if the data is encrypted and stored using the set encryption algorithm, when the computer performs calculations on the stored encrypted data, it also needs to use the decryption algorithm corresponding to the encryption algorithm, and then decrypt the stored encrypted data. Therefore, in the process of computer processing, there will be plaintext data, so the security of software data cannot be guaranteed