# Invalid Signature while join a meeting

**URL:** <https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383>\
**Category:** Web\
**Created:** [December 2, 2020, 6:00am UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383 "2020-12-02T06:00:57Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![srisaibh](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/srisaibh/32/18109_2.png) [@srisaibh](https://devforum.zoom.us/u/srisaibh)\
**Post date:** [December 2, 2020, 6:00am UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/1 "2020-12-02T06:00:57Z")

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**Description**  
Invalid Signature

**Error**  
Joining meeting timeout.  
Signature is invalid.

1. {method: “join”, status: false, result: “Invalid signature.”, errorMessage: “Signature is invalid.”, errorCode: 3712}

2. errorCode: 3712

3. errorMessage: “Signature is invalid.”

4. method: “join”

5. result: “Invalid signature.”

6. status: false

7. **proto** : Object

**Which version?**  
1.8.3

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:  
Signature :

**Screenshots**  
If applicable, add screenshots to help explain your problem.

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/5/d/5d296c39160cbae292a8e1b03a1204bc171ef9eb.png)

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

- PC
- Windows
- Version: [e.g. 22]
- Chrome

**Additional context**  
Add any other context about the problem here.

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<div class="post-metadata">

**Author:** ![srisaibh](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/srisaibh/32/18109_2.png) [@srisaibh](https://devforum.zoom.us/u/srisaibh)\
**Post date:** [December 2, 2020, 9:13pm UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/2 "2020-12-02T21:13:01Z")

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Need reply, could someone help me out here !

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<div class="post-metadata">

**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:** [December 2, 2020, 10:42pm UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/3 "2020-12-02T22:42:24Z")

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Hey @srisaibh,

It appears you are using an [SDK App](https://marketplace.zoom.us/docs/guides/build/sdk-app) to generate the [Web SDK Signature.](https://marketplace.zoom.us/docs/guides/build/jwt-app)

Make sure to use JWT App credentials instead.

Let me know if that fixes the issue for you. 🙂

Thanks,  
Tommy

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<div class="post-metadata">

**Author:** ![srisaibh](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/srisaibh/32/18109_2.png) [@srisaibh](https://devforum.zoom.us/u/srisaibh)\
**Post date:** [December 3, 2020, 1:45am UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/4 "2020-12-03T01:45:00Z")

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Hi @tommy,

Thanks for pointing that out. It solved my issue. But if we are to use the JWT API KEY for the web SDK signature, what is the point of having an SDK\_KEY?

Bhargav.

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<div class="post-metadata">

**Author:** ![pscaccal](https://avatars.discourse-cdn.com/v4/letter/p/7c8e57/32.png) [@pscaccal](https://devforum.zoom.us/u/pscaccal)\
**Post date:** [December 3, 2020, 7:40pm UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/5 "2020-12-03T19:40:33Z")

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Hi @tommy

We are using the JWT API key and API Secret for the signature, still the Joining meeting timeout is taking place, what may be the issue.

Our Signature is:

Please help us asap

For more info attached the console log:

 ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/1/7/1774e313477fb311786f7a34eb3af580c0ea45d4.png)

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<div class="post-metadata">

**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:** [December 4, 2020, 10:24pm UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/6 "2020-12-04T22:24:53Z")

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Hey @srisaibh,

The SDK App Type is for the [Native Mobile and Desktop Client SDKs.](https://marketplace.zoom.us/docs/sdk/native-sdks/introduction) (iOS, Windows, macOS, Android, Electron, Ionic)

 ![Screen Shot 2020-12-04 at 3.23.42 PM](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/5/0/50756f676c480e5f9513dd942f4a61f45ebe3ef0.png)

Thanks,  
Tommy

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<div class="post-metadata">

**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [December 4, 2020, 10:31pm UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/7 "2020-12-04T22:31:43Z")

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Hey @pscaccal,

Thank you for reaching out. Your signature looks to be correct but we just want to confirm how this is being generated. Are you able to provide a code snippet for the logic used to create the [signature](https://marketplace.zoom.us/docs/sdk/native-sdks/web/build/signature)?

Thanks,  
Max

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<div class="post-metadata">

**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:** [January 4, 2021, 8:31am UTC](https://devforum.zoom.us/t/invalid-signature-while-join-a-meeting/37383/8 "2021-01-04T08:31:58Z")

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Closed on January 4, 2021, 8:31am UTC

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