A True Random Number Generator Against Intrusive Attacks

Abstract

A resistant and intrusive attack true random number generator comprises a random number source generating module, a detecting module and a postprocessing module, wherein the outer end of the random number source generating module is coupled to the input end of the detecting module and the input end of the postprocessing module respectively. The random number source generating module is used for generating a digital signal having random characteristics. The detecting module is used for detecting whether the digital signal having random characteristics is subjected to intrusive attack, and if yes, the module is further used for giving an alarm and stopping output of the random number source generating module. The postprocessing module is used for conducting algorithm processing on a random number source so as to produce true random number data. Due to the fact that the detecting module can detect whether the random number source portion is attached or not, generation of attacked random data is prevented through the modes of alarm giving and stopping of random number source output, the true random number quality is improved. In addition, the detecting module is achieved by adopting a digital circuit, the true random number generator is simple in structure, facilitates transplantation by adopting various processes and is easily added to a true random number generator circuit.

Description

technical field [0001] The invention relates to the technical field of integrated circuit and chip security, in particular to a true random number generator resisting intrusive attacks. Background technique [0002] With the rapid development of the Internet and the application of information technology, online transactions such as e-commerce, online banking and mobile banking have become more and more common, and their security issues have attracted more and more attention. At present, the security of online transactions is mainly to use relevant cryptographic algorithms to ensure the integrity and authenticity of data, among which block cipher algorithm and public key cryptography algorithm are the two most commonly used cryptographic algorithms. One of the characteristics of these algorithms is that they all need to use a key to perform operations, so the security of these algorithm keys is very important. One of the very important features is that the key value cannot be...

AI Technical Summary

Problems solved by technology

The true random numbers generated in this way have no regularity at all and are unpredictable. It is impossible for an attacker to guess the next generated data through a large amount of data analysis; as the name implies, pseudo-random numbers are not real random numbers, generally Use a certain fixed generation algorithm to achieve, but the user can set the initial seed, the disadvantage of the random number generated in this way is obvious, the attacker can guess the pseudo-random number generation algorithm through a large amount of data analysis

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