# Zoom apps decipher error for context

**URL:** <https://devforum.zoom.us/t/zoom-apps-decipher-error-for-context/70908>\
**Category:** Zoom Apps\
**Created:** [June 22, 2022, 10:29am UTC](https://devforum.zoom.us/t/zoom-apps-decipher-error-for-context/70908 "2022-06-22T10:29:21Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mritunjay.goutam](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@mritunjay.goutam](https://devforum.zoom.us/u/mritunjay.goutam)\
**Post date:** [June 22, 2022, 10:29am UTC](https://devforum.zoom.us/t/zoom-apps-decipher-error-for-context/70908/1 "2022-06-22T10:29:21Z")

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We are using zoom-apps-js-sdk.0.13.0 and it was working but from last one day while doing decipher it is throwing error at line `decipher.update(cipherText, 'hex', 'utf-8') + decipher.final('utf-8')`

error is `Unsupported state or unable to authenticate data at Decipheriv.final (internal/crypto/cipher.js:172:29)`

cc: @shoaib

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**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:** [July 25, 2022, 9:46pm UTC](https://devforum.zoom.us/t/zoom-apps-decipher-error-for-context/70908/2 "2022-07-25T21:46:06Z")

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@mritunjay.goutam sorry for the delay getting back to you. Are you still encountering this issue?

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**Author:** ![kumaranps](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/kumaranps/32/42739_2.png) [@kumaranps](https://devforum.zoom.us/u/kumaranps)\
**Post date:** [November 7, 2022, 11:31am UTC](https://devforum.zoom.us/t/zoom-apps-decipher-error-for-context/70908/3 "2022-11-07T11:31:31Z")

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Iam getting a similar error when running - on the project zoomapps-advancedsample-react. I have checked and followed the instaructions as in readme file . Iam not able to troubleshoot

GET /api/zoomapp/home 500 13.761 ms - 1127  
backend\_1 | Error: Unsupported state or unable to authenticate data  
backend\_1 | at Decipheriv.final (node:internal/crypto/cipher:193:29)  
backend\_1 | at Object.decryptZoomAppContext (/home/node/app/util/zoom-helpers.js:52:60)  
backend\_1 | at home (/home/node/app/api/zoomapp/controller.js:256:47)  
backend\_1 | at Layer.handle [as handle\_request] (/home/node/app/node\_modules/express/lib/router/layer.js:95:5)  
backend\_1 | at next (/home/node/app/node\_modules/express/lib/router/route.js:137:13)  
backend\_1 | at Route.dispatch (/home/node/app/node\_modules/express/lib/router/route.js:112:3)  
backend\_1 | at Layer.handle [as handle\_request] (/home/node/app/node\_modules/express/lib/router/layer.js:95:5)  
backend\_1 | at /home/node/app/node\_modules/express/lib/router/index.js:281:22  
backend\_1 | at Function.process\_params (/home/node/app/node\_modules/express/lib/router/index.js:341:12)  
backend\_1 | at next (/home/node/app/node\_modules/express/lib/router/index.js:275:10)

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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:** [November 8, 2022, 12:56am UTC](https://devforum.zoom.us/t/zoom-apps-decipher-error-for-context/70908/4 "2022-11-08T00:56:30Z")

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@kumaranps Make sure that you are using a supported operating system (Windows or MacOS). Please see our other thread for more information:

> [@The Zoom Apps SDK is not supported by this browser](https://devforum.zoom.us/t/the-zoom-apps-sdk-is-not-supported-by-this-browser/75653/7):
>
> Unfortunately, Zoom Apps are not currently supported on Linux operating systems. While we don’t have plans to support Linux at this time we may provide support in the future if we see significant demand.