1. Answers
  2. Automated Encryption Key Rotation for S3 Buckets

How do I implement automated encryption key rotation for S3 Buckets?

In this guide, we will create an S3 bucket with server-side encryption using AWS KMS (Key Management Service) and enable automatic key rotation for the KMS key. This ensures that your data is encrypted and the encryption keys are rotated automatically to enhance security.

Key Points:

  • Create an S3 bucket with server-side encryption.
  • Create a KMS key and enable automatic key rotation.
  • Apply the KMS key to the S3 bucket for encryption.
import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Create a KMS key
const kmsKey = new aws.kms.Key("myKmsKey", {
    description: "KMS key for S3 bucket encryption",
    enableKeyRotation: true, // Enable automatic key rotation
});

// Create an S3 bucket
const bucket = new aws.s3.Bucket("myBucket", {
    bucket: "my-encrypted-bucket",
    serverSideEncryptionConfiguration: {
        rule: {
            applyServerSideEncryptionByDefault: {
                sseAlgorithm: "aws:kms",
                kmsMasterKeyId: kmsKey.id, // Use the KMS key for encryption
            },
        },
    },
});

// Export the bucket name and KMS key ID
export const bucketName = bucket.bucket;
export const kmsKeyId = kmsKey.id;

Summary:

In this guide, we created an S3 bucket with server-side encryption using a KMS key. We also enabled automatic key rotation for the KMS key to ensure that the encryption keys are rotated periodically for enhanced security.

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