# Prune + Fingerprint?

**URL:** <https://discuss.elastic.co/t/prune-fingerprint/112418>\
**Category:** Logstash\
**Created:** [December 19, 2017, 11:26am UTC](https://discuss.elastic.co/t/prune-fingerprint/112418 "2017-12-19T11:26:46Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tonni\_Hult](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tonni_hult/32/11992_2.png) [@Tonni\_Hult](https://discuss.elastic.co/u/Tonni_Hult)\
**Post date:** [December 19, 2017, 11:26am UTC](https://discuss.elastic.co/t/prune-fingerprint/112418/1 "2017-12-19T11:26:47Z")

</div>

Hi

Is anyone aware of an existing filter that combines parts of prune and fingerprint?

My usecase is that I want to make a list of fields either by using a whitelist or a blacklist (which prune has support for) and then hash the value of the found fields (which is what fingerprint does). I haven't though been able to find this functionality anywhere

Regards  
Tonni

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 16, 2018, 11:27am UTC](https://discuss.elastic.co/t/prune-fingerprint/112418/2 "2018-01-16T11:27:28Z")

</div>

Closed on January 16, 2018, 11:27am UTC

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.