True random number generator applicable to wireless communication system

Abstract

The invention belongs to the field of wireless communication, and relates to a true random number generator applicable to a wireless communication system. Through improvement of the structure of a traditional true random number generator, the radio frequency receiving channel of the wireless communication system is taken as a true random number source and an extraction circuit, through adoption of a post processing circuit, the performance of true random numbers is ensured, and the traditional true random number generator provided by the invention has relatively high application value in aspects such as communication and information security. The specific structure of the traditional true random number generator is that the on-chip radio frequency receiving channel is multiplexed as the true random number source, noise signals of a reference source are obtained for amplification and processing, noises are quantified by an on-chip AD, the random numbers are extracted by an oscillator through an oscillation sampling method, and after the random numbers are processed by the post processing circuit, a true random number sequence is output. Compared with the prior art, an external noise source chip or an on-chi physical noise source is unnecessary. The cost and complexity of the system are reduced; the structure of the extraction circuit is simplified; and the discreteness and entropy of the random numbers are effectively improved.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a true random number generator suitable for wireless communication systems. Background technique [0002] Random numbers play an important role in cryptography. Almost all cryptographic algorithms and protocols use some data that must be secret to the attacker. For example, for a cryptographic algorithm, if the secret is stored in the key , then the key is the secret, including the key of the symmetric encryption algorithm (DES, AES, etc.) and the key pair of the asymmetric encryption algorithm (RSA, DSA, etc.), and these keys must be random numbers. For the only proven perfect security system one-time pad system, its security depends on the key, which must be a random number. [0003] With the development of encryption and decryption technology, the requirements for high-quality random numbers are also increasing. The random number generator implemented by the software meth...

AI Technical Summary

Problems solved by technology

Although the physical random source can provide a true random number sequence in the true sense, it does not mean that the true random number sequence generated by it is of high quality, nor can it necessarily meet the requirements of the above tests

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