# No Private Key available settings: saml & SSO Nextcloud 16

**URL:** <https://help.nextcloud.com/t/no-private-key-available-settings-saml-sso-nextcloud-16/71684>\
**Category:** ℹ️ Support\
**Tags:** files-accesscontrol-app\
**Created:** [February 20, 2020, 7:43am UTC](https://help.nextcloud.com/t/no-private-key-available-settings-saml-sso-nextcloud-16/71684 "2020-02-20T07:43:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![devwinner](https://help.nextcloud.com/letter_avatar/devwinner/32/5_5575768a8748004e209b776fc1b2916d.png) [@devwinner](https://help.nextcloud.com/u/devwinner)\
**Post date:** [February 20, 2020, 7:43am UTC](https://help.nextcloud.com/t/no-private-key-available-settings-saml-sso-nextcloud-16/71684/1 "2020-02-20T07:43:28Z")

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Nextcloud version: 16  
System: Debian  
Identity Provider: WSO2 identity server  
I Configure SSO & SAML with Nextcloud. Everythings look fine. But when I log in Nextcloud through my WSO2 identity Server login page, I have an error: "The server was unable to execute this request ". When I see the log file, it says:

{“reqId”:“FKGBbOOpf9f0RPV68oxi”,“level”:3,“time”:“2020-02-19T18:33:46+00:00”,“remoteAddr”:“196.170.30.229”,“user”:"–",“app”:“index”,“method”:“POST”,“url”:"/index.php/apps/user\_saml/saml/acs",“message”:{“Exception”:“OneLogin\Saml2\Error”,“Message”:“No private key available, check settings”,“Code”:13,“Trace”:[{“file”:"/var/www/html/nextcloud/apps/user\_saml/3rdparty/vendor/onelogin/php-saml/src/Saml2/Response.php",“line”:114,“function”:“decryptAssertion”,“class”:“OneLogin\Saml2\Response”,“type”:"-\>",“args”:["\*\*\* sensitive parameters replaced \*\*\*"]}

On Nextcloud SSO SAML interface, I don’t where i can enter the private certificate key. There is just only: Public certificate key field. Help me solve this issue

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**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\
**Post date:** [December 11, 2024, 8:46pm UTC](https://help.nextcloud.com/t/no-private-key-available-settings-saml-sso-nextcloud-16/71684/2 "2024-12-11T20:46:09Z")

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<div class="post-metadata">

**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\
**Post date:** [December 11, 2024, 8:46pm UTC](https://help.nextcloud.com/t/no-private-key-available-settings-saml-sso-nextcloud-16/71684/3 "2024-12-11T20:46:10Z")

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