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deIdentifyTableWithFpe.js
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deIdentifyTableWithFpe.js
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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
'use strict';
// sample-metadata:
// title: De-identify with FPE
// description: De-identify sensitive data in a string using Format Preserving Encryption (FPE).
// usage: node deIdentifyTableWithFpe.js my-project alphabet keyName wrappedKey
async function main(projectId, alphabet, keyName, wrappedKey) {
// [START dlp_deidentify_table_fpe]
// Imports the Google Cloud Data Loss Prevention library
const DLP = require('@google-cloud/dlp');
// Instantiates a client
const dlp = new DLP.DlpServiceClient();
// The project ID to run the API call under
// const projectId = 'my-project';
// The set of characters to replace sensitive ones with
// For more information, see https://cloud.google.com/dlp/docs/reference/rest/v2/organizations.deidentifyTemplates#ffxcommonnativealphabet
// const alphabet = 'NUMERIC';
// The name of the Cloud KMS key used to encrypt ('wrap') the AES-256 key
// const keyName = 'projects/YOUR_GCLOUD_PROJECT/locations/YOUR_LOCATION/keyRings/YOUR_KEYRING_NAME/cryptoKeys/YOUR_KEY_NAME';
// The encrypted ('wrapped') AES-256 key to use
// This key should be encrypted using the Cloud KMS key specified above
// const wrappedKey = 'YOUR_ENCRYPTED_AES_256_KEY'
// Table to de-identify
const tablularData = {
headers: [{name: 'Employee ID'}, {name: 'Date'}, {name: 'Compensation'}],
rows: [
{
values: [
{stringValue: '11111'},
{stringValue: '2015'},
{stringValue: '$10'},
],
},
{
values: [
{stringValue: '22222'},
{stringValue: '2016'},
{stringValue: '$20'},
],
},
{
values: [
{stringValue: '33333'},
{stringValue: '2016'},
{stringValue: '$15'},
],
},
],
};
async function deidentifyTableWithFpe() {
// Specify field to be encrypted.
const fieldIds = [{name: 'Employee ID'}];
// Specify an encrypted AES-256 key and the name of the Cloud KMS key that encrypted it
const cryptoKeyConfig = {
kmsWrapped: {
wrappedKey: wrappedKey,
cryptoKeyName: keyName,
},
};
// Specify how the content should be encrypted.
const cryptoReplaceFfxFpeConfig = {
cryptoKey: cryptoKeyConfig,
commonAlphabet: alphabet,
};
// Associate the encryption with the specified field.
const fieldTransformations = [
{
fields: fieldIds,
primitiveTransformation: {
cryptoReplaceFfxFpeConfig,
},
},
];
// Combine configurations into a request for the service.
const request = {
parent: `projects/${projectId}/locations/global`,
deidentifyConfig: {
recordTransformations: {
fieldTransformations,
},
},
item: {
table: tablularData,
},
};
// Send the request and receive response from the service.
const [response] = await dlp.deidentifyContent(request);
// Print the results.
console.log(
`Table after de-identification: ${JSON.stringify(response.item.table)}`
);
}
await deidentifyTableWithFpe();
// [END dlp_deidentify_table_fpe]
}
process.on('unhandledRejection', err => {
console.error(err.message);
process.exitCode = 1;
});
// TODO(developer): Please uncomment below line before running sample
// main(...process.argv.slice(2));
module.exports = main;