Pseudo-random code generator and its generation method based on generalized information domain

Abstract

The present invention provides a pseudo-random code generator based on a generalized information domain, which includes an initial address information (IV) generation module, an IV normalization module, a key generation algorithm (m) module, a constrained processing module, and an encryption module connected in sequence. A key length judging module, the m module is also connected with the activity background generation module at the same time, and the activity background generation module is mainly composed of a physical reconstruction module and a logic reconstruction module. The present invention breaks through the binary limitation of traditional cryptography, introduces the concept of generalized information domain, expands it into a triple structure, realizes the transfer of key security issues to generalized information domain security issues, improves the strength of resistance to cryptanalysis, and further improves information security. confidentiality. The invention can quickly generate very long pseudo-random codes, can increase the size of the key space when used as a key, and can provide specific keys according to different purposes. The generated pseudo-random code has initial value sensitivity and good randomness.

Description

technical field [0001] The invention relates to the field of cryptography, in particular to a pseudo-random code generator based on a generalized information domain and a generation method thereof. Background technique [0002] In recent years, computer network has developed rapidly and is widely used in various fields such as politics, military affairs, economy and science, and more and more information has been effectively transmitted and stored. Due to the openness of the computer network, information may be stolen in the process of transmission and storage, and the confidentiality, integrity, availability and non-repudiation of information all need to be realized by cryptographic technology. Modern high-performance computers can automatically analyze and intercept transmitted information, and can search hundreds of bottom codes per second, thus posing a serious threat to information security. The information field is eager to have more secure, convenient and effective m...

AI Technical Summary

Problems solved by technology

[0009] (2) The decryption key needs to be transmitted to the decryption party through an encryption method or a secret channel to decrypt the ciphertext. During the transmission process, both the ciphertext and the decryption key may be intercepted, so it is possible to pass the ciphertext-only attack or password Analyzing and cracking the ciphertext, so that the information transmission loses the security guarantee, which also greatly increases the complexity of key management;

[0010] (3) Due to various reasons in the traditional encryption algorithm, a key is often used repeatedly in the actual use process, and there are security problems caused by multiple reuse.

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