Dynamic Hash computation method and device for block chain, node and storage medium

Abstract

The invention discloses a dynamic Hash computation method and a dynamic Hash computation device for a block chain, a node and a computer readable storage medium. The method comprises the following steps of acquiring an object to be subjected to Hash operation and the height of a block to be generated; converting the height into bytes, and performing the Hash operation on the bytes to acquire a first byte array of a bits; performing n-mode computation on the first m bits of the first byte array according to a preset number of running times m to acquire a second byte array of m bits, wherein n is the type number of preset Hash algorithms; and calling the corresponding Hash algorithm to perform the Hash operation on the object to be subjected to Hash operation according to the Hash algorithmcorresponding to each number and the order of the number in the second byte array, and judging whether the block can be generated according to a computation result. According to the method and deviceprovided by the invention, the Hash algorithm is dynamically generated according to the height of the block, and thus the security of the operation process is ensured.

Description

technical field [0001] The present invention relates to the field of block chains, in particular to a block chain-oriented dynamic hash calculation method, device, node and storage medium. Background technique [0002] The emergence of digital currency represented by Bitcoin indicates that blockchain technology has officially entered people's field of vision. Blockchain technology is essentially a decentralized distributed system. It is precisely because of this feature that the consensus mechanism has become a very critical technology in blockchain technology, that is, how to ensure that distributed nodes efficiently reach consensus on the effectiveness of point-to-point transactions and collaboration in a highly decentralized decentralized system . [0003] At present, widely used consensus mechanisms are based on proof of work (POW), based on proof of stake (POS), and so on. The POW consensus mechanism is the earliest consensus mechanism, which uses the computing power...

AI Technical Summary

Problems solved by technology

[0004] The biggest disadvantage of the POW consensus mechanism is that it consumes a lot of resources and wastes energy. In addition, the unbalanced computing power leads to a long consensus cycle. At the same time, the method of simply relying on machine computing power can easily lead to a 51% risk

In essence, the POS consensus mechanism still relies on computing power to increase the proportion of equity, and then obtain the right to bookkeeping, and it is easy to cause nodes with high equity not to participate in bookkeeping, lacking supervision

[0005] Since the algorithm of the POW consensus mechanism only relies on the enumeration hash calculation, on the one hand, the enumeration process cannot dynamically adapt to the height of the block, resulting in longer operation time and large energy consumption.

On the other hand, the hash calculation of the POW consensus mechanism adopts a fixed hash function, which cannot adapt to the dynamic change of the height of the block to a certain extent, and also has certain security problems

Images