Step 1: Setting up AWS Key Management Service (KMS)

• Log in to your AWS Management Console.
• Navigate to the AWS KMS dashboard.
• Create a new key by selecting the option: "Create Key" and follow the prompts.
• Choose the key type and key usage based on your needs. For encryption and decryption, select Symmetric.
• Provide key administrators and users access roles according to your security policies.
• Complete the key creation process and take note of the key ARN (Amazon Resource Name).

Step 2: Setting up IAM Role/Policy for Bubble App

• Create an IAM Role if you do not already have one for your Bubble app. You can do this through the IAM dashboard.
• Attach a policy to the IAM role to provide necessary permissions to use the KMS key. An example policy might look like this:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:Encrypt",
                "kms:Decrypt",
                "kms:DescribeKey"
            ],
            "Resource": "<YOUR_KEY_ARN>"
        }
    ]
}

• Replace <YOUR_KEY_ARN> with the ARN of the KMS key you created earlier.

Step 3: Configuring Bubble App with AWS KMS

• Go to your Bubble application settings.
• Navigate to the "API" section to add a new API connection.
• Set up the API to interact with AWS KMS using the appropriate endpoints. Typically, the AWS SDK can be used for these operations.
• Use the AWS SDK or direct REST calls. For instance, you might need to set up a server-side action to handle encryption and decryption requests. Here is an example of how to use a server-side script:

const AWS = require('aws-sdk');
AWS.config.update({region: 'YOUR_AWS_REGION'});

const kms = new AWS.KMS({
    accessKeyId: 'YOUR_AWS_ACCESS_KEY',
    secretAccessKey: 'YOUR_AWS_SECRET_KEY'
});

function encryptText(plainText) {
    const params = {
        KeyId: '<YOUR_KEY_ARN>', 
        Plaintext: plainText
    };
  
    kms.encrypt(params, (err, data) => {
        if (err) console.log(err, err.stack);
        else console.log(data.CiphertextBlob);
    });
}

function decryptText(cipherText) {
    const params = {
        CiphertextBlob: Buffer.from(cipherText, 'base64')
    };
  
    kms.decrypt(params, (err, data) => {
        if (err) console.log(err, err.stack);
        else console.log(data.Plaintext.toString());
    });
}

• Make sure to replace placeholders with your actual AWS access and secret keys, the key ARN, and the AWS region.
• Implement the functions `encryptText` and `decryptText` as per your Bubble application's requirements.

Step 4: Testing the Integration

• Create test data inputs in your Bubble app to check the encryption and decryption process.
• Use the server-side actions or API workflows you've set up to verify that data is encrypted before storage and decrypted when accessed.
• Monitor AWS CloudWatch logs to troubleshoot any potential issues with permissions or the KMS operations.

Step 5: Securing Your Integration

• Regularly rotate AWS access keys and secrets.
• Utilize IAM policies and roles for least-privilege access control.
• Enable AWS CloudTrail to monitor API activity and ensure unauthorized access attempts are quickly identified.
• Consider encrypting your AWS credentials within your Bubble app to further enhance security.