Random number generation method based on on-line hand-written signature

Abstract

The invention discloses a method based on on-line handwritten signature for generating random numbers. The invention is characterized in that the method comprises the following steps: collecting sampling point coordinates from the handwritten signature; converting sampling points to M*M sampling images; encrypting the sampling images to obtain ciphertext images; converting the ciphertext images to random numbers of T bits. By adopting the invention, the generated random numbers can be provided for an encryption key, a security protocol or a network game.

Description

A Random Number Generation Method Based on Online Handwritten Signature technical field The invention relates to a method for generating random numbers, in particular to a method for generating random numbers based on online handwritten signatures. Background technique Random numbers play a very important role in information technology, especially in the field of information security. For symmetric encryption algorithms, whether it is block encryption or sequence encryption, the key must be randomly generated, and the public encryption algorithm also needs a large random number when generating a key pair. In addition, many digital signature algorithms and cryptographic protocols also require the use of random numbers. In addition to the field of information security, random numbers are also widely used in computer simulation and computer or online games. Random numbers are generated by two types of generators, true random number generators and pseudo random number genera...

AI Technical Summary

Problems solved by technology

Judging from the existing technology, the random number generated by the pseudo-random number generator does not have real "randomness", and its security cannot be guaranteed

However, true random numbers generally require additional circuits or equipment, so they also have disadvantages in terms of cost and convenience.

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