mine method is the most interesting part
The mine function, implemented in the context of blockchain technology, performs a mining process based on a given difficulty level.
Closer look at what happens at each stage of its work.
- Function parameters difficulty - mining difficulty level. The higher the value, the more difficult it is to find a suitable hash.
- Checking the complexity condition At the very beginning, the function checks whether the difficulty level is set (difficulty). If the difficulty is less than or equal to zero (difficulty <= 0), that is, mining is not required or an incorrect difficulty level is set, the following actions are performed in the block:
The value of pow (Proof of Work) is set to 0. The generateHash method is then called, which generates a hash for the current block based on its contents and pow value. The function then exits using the return statement. 3. Generating a suitable hash If the difficulty condition is not met (that is, difficulty > 0), then the algorithm proceeds to the main mining cycle, the purpose of which is to find a block hash that satisfies a certain difficulty condition.
The cycle works like this:
An infinite loop (for) is used, which continues until a hash that meets the complexity condition is generated. The difficulty condition is that the hash must start with a given number of zeros. This number of zeros is determined by the difficulty parameter. At each iteration: The pow counter is incremented (b.pow++). This change produces different hashes by changing the pow, which is part of the data from which the hash is generated. The generateHash method is called to generate a new hash with an increased pow value. The loop is terminated when a hash that satisfies the complexity condition (starting with the specified number of zeros) is found. Thus, the mine function ensures mining is carried out by iteratively searching for a hash that matches a given difficulty level. This process is a key mechanism for ensuring security and decentralization in blockchain networks.
BenchmarkMine BenchmarkMine-8 14839 80656 ns/op PASS
- more tests with random payload and blockchain benchmark
- block corruption and validation
- gob serialization / deserialization