Command restructuring method and device

Abstract

The invention provides an instruction recombining method in the operating process. The method includes the steps that step1, an instruction operating environment is cached; step2, addresses and parameters of jump instructions stored in a stack are obtained, the address of a next instruction to be operated is calculated, the address is a zeroth address, and a first address is set to be the zeroth address; step2, an address corresponding table is searched for by using the first address, if a record is found, the cached instruction operating environment is recovered, and execution is continued by jumping to a found corresponding address to complete instruction recombining this time; step3, if no record is found, a machine instruction segment to be executed is obtained starting from the first address, the end of the instruction segment is the jump instruction, and the address where the jump instruction is located is a third address; step4, starting from the first address till the third address, machine codes are disassembled, and disassembly results are processed through a lexical analyzer to generate recombined assembly codes.

Description

technical field [0001] The invention relates to the field of computer security, in particular to an instruction recombination method and device. Background technique [0002] The existing field of electronic information security includes three sub-fields: system security, data security and equipment security. [0003] In the field of data security, the following three technologies are generally used to ensure data security: (1) Data content security technology, including data encryption and decryption technology and end-to-end data encryption technology, to ensure that the content of data is not illegally read during storage and transmission (2) Data security transfer technology, including preventing illegal copying, printing or other output, and ensuring the safety of data during use and transfer; (3) Network blocking technology, including network physical blocking and setting up network barriers, etc. . [0004] According to relevant analysis, the total effective detecti...

AI Technical Summary

Problems solved by technology

The above-mentioned technologies are even more unable to prevent active or passive leakage of secrets by personnel involved in secrets. For example, insiders can carry storage devices, download required materials from internal networks or terminals and take away storage devices, resulting in internal leaks; Take the computing device with you directly

[0005] In summary, anti-copy technology cannot guarantee that confidential information will not be illegally stored on the terminal

Based on network filtering, it cannot ensure that confidential information is not lost

Confidential personnel may leak secrets through malicious code or malicious tools, and may also leak secrets due to loss of control of secret-related equipment or storage media

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