# Newb crypto source question

**URL:** <https://discuss.elastic.co/t/newb-crypto-source-question/233822>\
**Category:** Elasticsearch\
**Tags:** elastic-stack-security\
**Created:** [May 21, 2020, 11:07pm UTC](https://discuss.elastic.co/t/newb-crypto-source-question/233822 "2020-05-21T23:07:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![KPeirce](https://avatars.discourse-cdn.com/v4/letter/k/ed8c4c/32.png) [@KPeirce](https://discuss.elastic.co/u/KPeirce)\
**Post date:** [May 21, 2020, 11:07pm UTC](https://discuss.elastic.co/t/newb-crypto-source-question/233822/1 "2020-05-21T23:07:41Z")

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I have looked at the code and searched for netty in the hopes of finding a bind for the TLS stack. I suspect that Elastic is leveraging the Java crypto library. Is that correct? Does Elastic leverage an existing TLS stack or did they write their own? I could not find one in the code base. Any help appreciated.  
Cheers,  
Ken

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [June 18, 2020, 11:07pm UTC](https://discuss.elastic.co/t/newb-crypto-source-question/233822/2 "2020-06-18T23:07:44Z")

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Closed on June 18, 2020, 11:07pm UTC

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