# Authentication with certificate

**URL:** <https://community.hivemq.com/t/authentication-with-certificate/1605>\
**Category:** HiveMQ Community Edition\
**Created:** [November 16, 2022, 10:05pm UTC](https://community.hivemq.com/t/authentication-with-certificate/1605 "2022-11-16T22:05:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kirtadze](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.hivemq.com/kirtadze/32/461_2.png) [@Kirtadze](https://community.hivemq.com/u/Kirtadze)\
**Post date:** [November 16, 2022, 10:05pm UTC](https://community.hivemq.com/t/authentication-with-certificate/1605/1 "2022-11-16T22:05:16Z")

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Hello, I already made mutual TLS security on my hivemq broker and client side.  
It works fine, but client needs username and password to connect broker.  
What does it need to authenticate only with certificate and exchange data without any username and password?

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**Author:** ![michael\_w](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.hivemq.com/michael_w/32/200_2.png) [@michael\_w](https://community.hivemq.com/u/michael_w)\
**Post date:** [November 17, 2022, 8:41am UTC](https://community.hivemq.com/t/authentication-with-certificate/1605/2 "2022-11-17T08:41:16Z")

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Hi @Kirtadze,

TLS and authentication are decoupled. Most likely case is that you have an extension that requires username/password.

Can you please list all the extensions you are using? Also the hivemq.log and event.log (you can find them in log folder).

Greetings,  
Michael from the HiveMQ team