create_key.rb

# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0

# frozen_string_literal: true

# Purpose:
# create_key.rb demonstrates how to create a AWS KMS key
# using Amazon Key Management Services (AWS KMS) using the AWS SDK for Ruby.

# snippet-start:[kms.ruby.createKey]

require 'aws-sdk-kms' # v2: require 'aws-sdk'

# Create a AWS KMS key.
# As long we are only encrypting small amounts of data (4 KiB or less) directly,
# a KMS key is fine for our purposes.
# For larger amounts of data,
# use the KMS key to encrypt a data encryption key (DEK).

client = Aws::KMS::Client.new

resp = client.create_key({
                           tags: [
                             {
                               tag_key: 'CreatedBy',
                               tag_value: 'ExampleUser'
                             }
                           ]
                         })

puts resp.key_metadata.key_id
# snippet-end:[kms.ruby.createKey]