:plugin: anonymize
:type: filter

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:version: %VERSION%
:release_date: %RELEASE_DATE%
:changelog_url: %CHANGELOG_URL%
:include_path: ../../../../logstash/docs/include
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[id="plugins-{type}s-{plugin}"]

=== Anonymize filter plugin

include::{include_path}/plugin_header.asciidoc[]

==== Description

deprecated[3.0.3,We recommend that you use the {logstash-ref}/plugins-filters-fingerprint.html[fingerprint filter plugin] instead.]

Anonymize fields by replacing values with a consistent hash.

[id="plugins-{type}s-{plugin}-options"]
==== Anonymize Filter Configuration Options

This plugin supports the following configuration options plus the <<plugins-{type}s-{plugin}-common-options>> described later.

[cols="<,<,<",options="header",]
|=======================================================================
|Setting |Input type|Required
| <<plugins-{type}s-{plugin}-algorithm>> |<<string,string>>, one of `["SHA1", "SHA256", "SHA384", "SHA512", "MD5", "MURMUR3", "IPV4_NETWORK"]`|Yes
| <<plugins-{type}s-{plugin}-fields>> |<<array,array>>|Yes
| <<plugins-{type}s-{plugin}-key>> |<<string,string>>|Yes
|=======================================================================

Also see <<plugins-{type}s-{plugin}-common-options>> for a list of options supported by all
filter plugins.

&nbsp;

[id="plugins-{type}s-{plugin}-algorithm"]
===== `algorithm` 

  * This is a required setting.
  * Value can be any of: `SHA1`, `SHA256`, `SHA384`, `SHA512`, `MD5`, `MURMUR3`, `IPV4_NETWORK`
  * Default value is `"SHA1"`

digest/hash type

[id="plugins-{type}s-{plugin}-fields"]
===== `fields` 

  * This is a required setting.
  * Value type is <<array,array>>
  * There is no default value for this setting.

The fields to be anonymized

[id="plugins-{type}s-{plugin}-key"]
===== `key` 

  * This is a required setting.
  * Value type is <<string,string>>
  * There is no default value for this setting.

Hashing key
When using MURMUR3 the key is ignored but must still be set.
When using IPV4_NETWORK key is the subnet prefix lentgh



[id="plugins-{type}s-{plugin}-common-options"]
include::{include_path}/{type}.asciidoc[]