# DeploymentBucket with serverSideEncryption using kms

**URL:** <https://forum.serverless.com/t/deploymentbucket-with-serversideencryption-using-kms/8928>\
**Category:** Serverless Framework\
**Tags:** aws, security, cloudformation\
**Created:** [July 29, 2019, 1:41pm UTC](https://forum.serverless.com/t/deploymentbucket-with-serversideencryption-using-kms/8928 "2019-07-29T13:41:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![antonvnie](https://avatars.discourse-cdn.com/v4/letter/a/ed655f/32.png) [@antonvnie](https://forum.serverless.com/u/antonvnie)\
**Post date:** [July 29, 2019, 1:41pm UTC](https://forum.serverless.com/t/deploymentbucket-with-serversideencryption-using-kms/8928/1 "2019-07-29T13:41:52Z")

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I’m trying to do use a previously created DeploymentBucket (encrypted with my own kms key)  
So I have  
deploymentBucket:  
name: myBucket  
serverSideEncryption: aws:kms  
SSEKMSKeyId: arn:aws:kms:eu-west-1:123hashkey456etc  
but I get ServerlessError: Access Denied …. (aws/provider/awsProvider.js:316:27)

Is KMS encryption supported?  
Docs only mentioned AES256