This page is part of a static HTML representation of the TiddlyWiki at

sha256 Operator

29th January 2022 at 10:55am
purposeapply sha256 hash to a string
inputa selection of titles
parameterL = the number of characters to return, up to a maximum of 64
outputthe base64 encoded sha256 of the input, truncated to the specified length
Learn more about how to use Filters New in: 5.1.14

Hashes are a way of turning strings of arbitrary length into obfuscated strings of fixed length. They are often used in situations where items need to be stored by name but it is inconvenient to allow arbitrary length strings.

See Wikipedia for details of the sha256 operation.