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<strong>a single master seed</strong> using <strong>12 mnemonic phrases</strong>. An <strong>HD wallet</strong> is a type of <strong>digital wallet</strong> that <strong>stores the cryptographic keys</strong> of various cryptocurrency holders and it can be <strong>controlled by anyone who has a copy of both the <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-public-key/">public <strong>and password-like <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-private-key-secret-key/">private keys</a></strong>. <em>For more information, see <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-deterministic-wallet/">Deterministic Wallet</a>.</em></p>","level":"easy","meta_title":"What is Hierarchical Deterministic Wallet (HD Wallet)? Definition & Meaning | Crypto Wiki","meta_description":"Hierarchical Deterministic Wallet (HD Wallet) meaning: Hierarchical Deterministic Wallet (HD Wallet) - a wallet that supports the production of crypto-wallets from a single master seed using 12 mnemonic phrases.","meta_keywords":null,"language":"en","created_at":"2022-03-16T15:12:54.000000Z","updated_at":"2022-05-13T14:32:23.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-hierarchical-deterministic-wallet-hd-wallet"},"prevSection":{"id":387,"original_id":null,"author_id":42,"translator_id":null,"title":"What is Hash?","slug":"what-is-hash","section":"H","keyword":"Hash","status":"published","definition":"the output result of the hashing algorithm, which generates a one-of-a-kind, fixed-length text to encrypt and secure a set of data.","content":"<p>Hashing algorithms are <strong>one of the essential cybersecurity elements</strong> that easily encrypt and transform any size of data into a fixed-length single hash string. The output result that appears after the data encryption process is called a hash. In most cases, hashes consist of a hexadecimal number which means that they are usually a combination of numbers (0 to 9) and letters (a to f).</p>\n<p><strong>Hashing data is one of the</strong> <strong>most secure data</strong> because the original information can only be retrieved with a hash key. Hashes are especially useful with <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-block-explorer/">block explorers</strong></a> because they help to quickly extract information about addresses and transactions.</p>\n<p>The concepts of hash and hash algorithm were created in 1950 by Hans Peter Luhn when he developed a machine that would sort out text and numbers quickly. At the time there were no similar mechanisms, thus, the hash algorithm became an essential part of advanced computing.&nbsp;</p>\n<p>Hans Peter Luhn was definitely an innovator ahead of his time and even though &ldquo;hash&rdquo; as a term was officially created by Herbert Hellerman in his <em>&ldquo;Digital Computer System Principles&rdquo;</em>, <strong>Hans is considered to be the inventor of this technology</strong>.</p>\n<p><a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-hash-function/">Hash functions</strong></a> are extremely important in order to have secure and quick data processing and its input to the <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-distributed-ledger/">distributed ledger</strong></a>. There are a variety of hash functions, each focused on various components of the hash algorithm. <strong>Fibonacci and Zobrist hashing algorithms</strong> are some of the most popular ones, as well as various combinations between these two algorithms.&nbsp;</p>\n<p>In blockchain technology, <strong>hashing is used to speed up transaction processing</strong>. While transaction data might be of varying lengths, hashing is used to convert all transactions into fixed-length values. These values are subsequently stored on the blockchain, where they can be retrieved at any time. Bitcoin, for example, uses the <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-sha-256/">SHA-256 hash algorithm</strong></a>, which shortens all hashes to the length of 256bits (or 32 bytes) regardless of the size of the transaction.</p>\n<p>Hashing is really important in the crypto world because it makes it so much easier to add records to the blockchain at a high rate.</p>","level":"medium","meta_title":"What is Hash? Definition & Meaning | Crypto Wiki","meta_description":"Hash meaning: Hash - the output result of the hashing algorithm, which generates a one-of-a-kind, fixed-length text to encrypt and secure a set of data.","meta_keywords":null,"language":"en","created_at":"2022-03-16T15:05:12.000000Z","updated_at":"2022-09-22T13:39:15.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-hash"},"currentChapter":"H","currentSection":"what-is-hash-function","chapterTitle":"H","readingLevel":"easy"},"url":"/crypto/learn/crypto-terms/what-is-hash-function","version":"cdd198d50cbe5c9c21c9329d7c096ffc"}" class="container-fluid d-flex crypto-book p-0">
Handbook Cover Page
Crypto Terms: Letter H

What is Hash Function?

Hash Function MEANING:
Hash Function - any function that converts data of various sizes to data of a specific size.
Easy
1 minute

Let's find out Hash Function meaning, definition in crypto, what is Hash Function, and all other detailed facts.

A hash function converts a set of characters of any size into a value of a specific length (referred to as a hash) which is usually a combination of numbers from 0 to 9 and letters from a to f.

Hash functions are critical for secure and fast data processing and input to the distributed ledger. There are many different hash functions, each focusing on a different aspect of the hash algorithm. The Fibonacci and Zobrist hashing algorithms, as well as numerous combinations of these two algorithms, are among the most popular ones.
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