@BOMBERuss 13 June 2021 more from that month

A hash in cryptocurrency is the application of a deterministic model when transforming incoming data of free length into a bit string with a specific size. The term hash itself means "confusion". Its task is to change the input parameter in order to get a different value at the output. The concept itself was introduced in the last century in the mid-fifties among engineers who were engaged in processing a large amount of data. To put it simply, the hash in cryptocurrency is the process of transforming one set of characters into another. The transformation is based on an algorithm. For example, in Bitcoin, it is SHA-256. When there is a hash, it makes it easier to remember a large amount of data. Hash properties in cryptocurrency A hash has certain properties. This is the stability of the output parameter. When the same data cluster is analyzed at the input, the output results in the same total. Calculation speed. The transformation of incoming clusters should be carried out as quickly as possible. The difficulty of reverse calculations. The transformation of the original cluster of information into a hash is carried out unilaterally. The complexity of the algorithm. When creating a hash, a complex formula is used. Collision stability. For any source, there is an exclusive hash at the input. Hash functions in cryptocurrency The hash function itself has a specific set of functions. In particular, this is the transformation of data from free to a certain length, the openness of the algorithm for studying cryptographic stability, minimal requirements for computing power, the ability to transform any amount of data, low load of equipment when performing operations. Tasks that perform hash functions in Bitcoin Hash functions perform several tasks in Bitcoin. This is mining. Any of the miners takes data from the blocks they know about and creates another block based on it. If the output of the algorithm shows a value that is less than the target number, it is accepted by all network participants. The miner can create the next block. Connection of blocks. Each block is connected to the past, because it involves a hash. In fact, any of the blocks has the result of hashing from the previous block. Due to this, the history in the blockchain is tracked, and no malicious block is added to the network. Key development. In order to send or receive cryptocurrency, you need keys. Each of them is connected to each other using a hash function. Due to this, the user's private key cannot be obtained by other network participants. Thus, the hash function allows you to make cryptocurrencies as secure as possible. Of course, it is theoretically impossible to exclude the possibility of hacking cryptocurrencies, but so far hash functions provide the most maximum level of complexity that does not allow them to be hacked. How the hash function is used in mining It takes at least ten minutes to get a new chain element. If the process is accelerated, the complexity becomes higher, supporting the hash search speed. In order to avoid a large number of similar hashes, increasing the number of abandoned chain components, a complexity system has been created that increases the power requirements to find a particular hash and create a new block. In general terms, the mining algorithm looks like this: a hash of new chain elements is performed, a Nonce component is added to the hash, and the resulting string is hashed. Next, the hash is compared with the current complexity, the block is included in the chain, the blockchain is updated, the nodes are informed that a new element of the chain is obtained. In turn, those of the miners who gave up the power to extract blocks are entitled to receive remuneration. It is worth noting that the hash function is used not only in cryptocurrency. Its functions are also used when you need to monitor the integrity of TCP/IP packets in the network. In the blockchain, this function allows you to make the chain of operations complete, provides protection of the system from attempts to hack it. Due to this feature, the blockchain is reliable and is used as the basis of crypto assets. It is also used for cryptography, excluding the calculation of the base cluster of information on the final hash. This is necessary in order to make cryptography reliable. The hash function is also used to verify the authenticity of an electronic digital signature. In addition, it can be used to access a particular site on the Internet, to servers containing personal data. When a password is entered, the parameter is transformed into a hash, and the client can log in to the server. Conclusion Thus, the hash is of great importance in the cryptocurrency field, as well as in other industries. With this parameter, you can quickly transform and encrypt information, protect protocols, and so on. #Cryptocurrency