# Invalid signature again

**URL:** <https://devforum.zoom.us/t/invalid-signature-again/35318>\
**Category:** Web\
**Created:** [November 6, 2020, 5:22pm UTC](https://devforum.zoom.us/t/invalid-signature-again/35318 "2020-11-06T17:22:37Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![sebpatu](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sebpatu](https://devforum.zoom.us/u/sebpatu)\
**Post date:** [November 6, 2020, 5:22pm UTC](https://devforum.zoom.us/t/invalid-signature-again/35318/1 "2020-11-06T17:22:37Z")

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**Description**  
I followed the explanations for sdk integration in web page.  
i first tried with the sample app and tried with my own code,  
and get same result: invalid signature.  
i set proper api and secret keys from a JWT app created  
i set proper webinar id and password (also tried with a zoom  
**Error** meeting and same result)  
for signature generation i sued exact code from [https://github.com/zoom/websdk-sample-signature-node.js](https://github.com/zoom/websdk-sample-signature-node.js)  
please help.my failed signature is:

Thanks  
Seb

**Which version?**  
i use 1.8.1 version from cdn

**To Reproduce(If applicable)**  
meeting number:  
role: 0  
password as a string  
i set userName and userEmail

**Screenshots**

**Device (please complete the following information):**

**Additional context**

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<div class="post-metadata">

**Author:** ![sebpatu](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@sebpatu](https://devforum.zoom.us/u/sebpatu)\
**Post date:** [November 6, 2020, 6:43pm UTC](https://devforum.zoom.us/t/invalid-signature-again/35318/2 "2020-11-06T18:43:59Z")

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it seels i used the SDK api key instead of a JWT api key  
its annoying because JWT need an expiration date  
and it seems quite natural to use a SDK key to use the web SDK.  
Thanks

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [November 9, 2020, 9:05pm UTC](https://devforum.zoom.us/t/invalid-signature-again/35318/3 "2020-11-09T21:05:30Z")

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Hey @sebpatu,

Thanks for your feedback! We are actively improving upon this confusion in our docs.

Glad you got it working though! 🙂 Let us know if you need anything else!

Thanks,  
Tommy

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [December 10, 2020, 7:05am UTC](https://devforum.zoom.us/t/invalid-signature-again/35318/4 "2020-12-10T07:05:32Z")

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