Pseudo-random number generation method

Abstract

This invention discloses a method for generating false random numbers including: ciphering a first random number with a related ciphering method to get a ciphertext for XOR with the first random number to get the first XOR result to be XOR with a second random number in the second register to get a second result to be ciphered with a corresponding ciphering algorithm to get a ciphertext to be XOR with the second XOR result to get the false random number, which can generate fine random numbers with good ciphered code performance without external prompt input.

Description

technical field [0001] The invention relates to an information security technology, in particular to a method for generating pseudo-random numbers for a cryptographic system. Background technique [0002] Random numbers play an important role in many network security applications. A large number of network security algorithms based on cryptography use random numbers, for example, (1), key distribution in the authentication scheme, using a temporary interaction number as one of the handshake information to prevent repeated attacks; (2), session Key generation can be generated by the key distribution center or by the entrusting party; (3), the generation of the key in the public key encryption algorithm, and so on. [0003] In applications such as mutual authentication or session key generation, the statistical randomness of the random numbers is not very demanding, but the random number sequence generated is required to be unpredictable. The so-called "true random number se...

AI Technical Summary

Problems solved by technology

However, while there are many tests that can be used to show that a sequence is not independent, there is no single way to show that a sequence is good

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