True random number generation method and device with detection and correction function

Abstract

The invention discloses a true random number generation method and device with a detection and correction function. A random number is taken as an important component of a cryptosystem and is widely applied to a security system. The random number comprises a session key, an initial vector and a digital signature. The device is composed of an entropy source module, a sampling module, an XOR logic gate, a cellular finite state machine, a test module, a CPU and a selection controller. The entropy source module is composed of two identical oscillator structures. Each oscillator is a chaotic oscillator structure based on an autonomous Boolean network. The entropy source module can generate wide spectrum and high bandwidth chaotic signals. After a random sequence is tested through the test module, whether the sequence passes the test or not is judged through the CPU. The sequence is directly output if the sequence passes the test. Data is returned and enters a postprocessing module through an XOR circuit if the sequence does not pass the test. Moreover, a selection controller selects different postprocessing modes to process the data. The processed data enters the test module for test again, until the data passes the test. A random code sequence generated by the invention can pass a random number industry standard test.

Description

technical field [0001] The invention relates to the field of integrated circuits and cryptographic chips, and relates to a method and device for generating true random numbers with detection and correction functions. Background technique [0002] With the continuous development of the information society, information plays an increasingly important role in society, and the generation, storage, and processing of information are closely related to everyone. The security and confidentiality of the corresponding information has become a matter of concern to everyone. Especially in the fields of communication and finance, there are stricter requirements on information security. [0003] True random number generators have very important applications in the field of modern cryptography. It is an important part of the encryption chip system. However, the pseudo-random number generators at this stage have the disadvantages of periodicity and easy cracking of the generated sequence...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a physical random number generation method and solution with high speed, low power consumption and online detection in order to solve the shortcomings of the existing random number generation method and device with complex structure, high power consumption, low speed, and offline detection

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