What is the hash calculator?

The

and hash calculator can be several things, but in a very wide sense it applies to a program or function that receives some type of input and then starts this input through the algorithm to create an output value, such as a large number or block of symbols. The term is often used in data transfer to a link to a program that creates a key type with algorithm, so anyone who receives the transmitted data can use the same algorithm to get the same key to see if the data has arrived intact and unmodified. In computer programming, the "Hash calculator" calculator can be used to indicate a hash function that converts a certain type of data into a hash key, which is then processed by another algorithm to form an index into the box where the information can be stored. Although both concepts are similar to the calculators, the results are very different and are usually not interchangeable. One of the common features of the hash calculator, regardless of its use, is that the generated hash value will always be identical to the DA pieceT, no matter where or when the program is running.

In its core, the Hash calculator is only a program or feature that creates hash from some data. Hash is just a word for value and can be anything from the number to the string of hundreds of alphanumeric characters, depending on how it is used. The data that is added to the hash calculator and creates has has almost anything. When used to check errors when transferring data, a hash value is usually a complete document or data file such as e -mail or image image. In programming, because the hash value is used to determine where data records are stored in the hash table, the input value is usually part of a data record that is unique, such as a person's surname, a telephone number or account number.

In the case of data transmission, the Hash.f calculator uses hundreds of different mathematical algorithms to create a unique hash value for PMourned information. It can be something as simple as adding all the values ​​of all bytes in the file, in which case the hash value is sum. It can also be much more complicated and involves counting bits or redundant processing of various sequences of numbers. However, one of the most important aspects of any algorithm has a hash is that the resulting hash value must always be the same if the same data is used as input. This concept means that if the file is transmitted with its own calculated hash value, then the data receiver can use a hash calculator with the same algorithm to determine whether the hash values ​​for data match and verify that the data was received intact and without errors or changes.

In programming, the term "hash calculator" is often used to describe a function that converts a piece of data to the value of the hash. Unlike Number data transfer generated by calculating in this case, it is not necessarily used for verification, but to calculate the index to the hash table, whereThe information will be stored. The values ​​of the intermediary hash is calculated to predict a larger number of data records into a smaller hash table, while some records generate the same values ​​under certain circumstances. Both algorithm used to calculate the hash value and data used as input are quite any for the hash table and usually specific to the application.