---
title: "hashing"
description: "Transformation of a variable length string of characters into a usually shorter fixed-length value or key. Hashed values, or hashes, are commonly used in table or database lookups. Cryptographic hash functions are used to secure data."
type: term
term_id: 674
language: English
language_code: gb
canonical: "https://glossary.istqb.org/en/term/hashing-4"
slug: "hashing"
url: "https://istqb-glossary.page/hashing/"
---

# hashing

Transformation of a variable length string of characters into a usually shorter fixed-length value or key. Hashed values, or hashes, are commonly used in table or database lookups. Cryptographic hash functions are used to secure data.

## Present in syllabi


- Advanced Security Tester 2016

## Translations


- [Deutsch](https://istqb-glossary.page/de/hashfunktion/) — Hashfunktion
- [Italiano](https://istqb-glossary.page/it/hashing/) — hashing
- [日本語](https://istqb-glossary.page/jp/%E3%83%8F%E3%83%83%E3%82%B7%E3%83%A5%E5%8C%96-hashing/) — ハッシュ化（hashing）
- [Polski](https://istqb-glossary.page/pl/haszowanie/) — haszowanie
- [Polski](https://istqb-glossary.page/pl/kodowanie-mieszajace/) — kodowanie mieszające
- [Português](https://istqb-glossary.page/pt/hashing/) — hashing
- [Čeština](https://istqb-glossary.page/cz/hashovani-hashing/) — hashování (hashing)
- [Svenska](https://istqb-glossary.page/se/hashning/) — hashning

Read this term online: https://istqb-glossary.page/hashing/

Markdown variant of the HTML page at https://istqb-glossary.page/hashing/ — part of the
ISTQB Glossary (https://istqb-glossary.page), a linkable, machine-readable
republication of the ISTQB glossary under fair use. No affiliation with ISTQB.