Databridges NACL wrapper gives you a simple write and read function using implementation of the secretbox encryption standard defined in NaCl.
Databridges NACL wrapper is available for
The above wrappers can be used to send encrypted messages between them.
The Databridges NACL wrapper for JavaScript Language binding uses
tweetnaclto deliver implementation of the secretbox encryption standard defined in NaCl.
The following topics are covered:
- Supported platforms
- Installation.
- Initialization
- Global Configuration
- How to use with Databridges JavaScript Library
- Change Log
- License
| Android | Firefox | Chrome | Edge |
|---|---|---|---|
| 5.1+ | 78+ | 84+ | 99+ |
Include databridges NaCl wrapper library from any of below CDN:
- jsDelivr :
<script src="https://cdn.jsdelivr.net/npm/databridges-js-nacl-wrapper@1.0.1/dist/databridges.nacl.wrapper.min.js" integrity="sha384-O34Ik4FhdcikoNSke8zZHqyXO1JjAn/Jw/pKdp/PYlVQcBB19JdPKZn0uz+wtd5t" crossorigin="anonymous"></script>- unpkg :
<script src="https://unpkg.com/databridges-js-nacl-wrapper@1.0.1/dist/databridges.nacl.wrapper.min.js" integrity="sha384-O34Ik4FhdcikoNSke8zZHqyXO1JjAn/Jw/pKdp/PYlVQcBB19JdPKZn0uz+wtd5t" crossorigin="anonymous"></script>Now initialize databridges object in your script.
const secretData = new dbNaClWrapper();The following is the required properties before using to dataBridges NaCl wrapper.
secretData.secret = '32 char alphanumeric string';| Properties | Description |
|---|---|
secret |
(string) 32 char alpha numeric string. NaCl encryption secret. |
To encrypt data using NaCl, databridges wrapper exposes a method named write, This will return encrypted data if successful else it will throw error.
try {
const encData = secretData.write("Your Data..");
console.log('Encrypted:', encData);
} catch (err) {
console.log('Errors:', err.source, err.code, err.message);
}| Parameter | Description |
|---|---|
data |
(string) data to be encrypted. |
| Return Values | Description |
|---|---|
string |
Encrypted string. |
| Source | Code | Description |
|---|---|---|
| DBLIB_NACL_WRAPPER | INVALID_SECRET | secret is not set with the wrapper instance. |
| DBLIB_NACL_WRAPPER | INVALID_DATA | If data is not passed to the function. |
| DBLIB_NACL_WRAPPER | NACL_EXCEPTION | Exceptions generated by NaCl library. |
To decrypt data using NaCl, databridges wrapper exposes a method named read, This will return decrypted data if successful else it will throw error.
try {
const decData = secretData.read("<Encrypted data.>");
console.log('Decrypted:', decData);
} catch (err) {
console.log('Errors', err.source, err.code, err.message);
}| Parameter | Description |
|---|---|
data |
(string) data to be encrypted. |
| Return Values | Description |
|---|---|
string |
Encrypted string. |
| Source | Code | Description |
|---|---|---|
| DBLIB_NACL_WRAPPER | INVALID_SECRET | secret is not set with the wrapper instance. |
| DBLIB_NACL_WRAPPER | INVALID_DATA | If data is not passed to the function OR data is not a valid encrypted string. |
| DBLIB_NACL_WRAPPER | NACL_EXCEPTION | Exceptions generated by NaCl library. |
| DBLIB_NACL_WRAPPER | NACL_DECRYPT_FAILED | If decryption fails due to invalid secret or manipulated data. |
Below code shows how to integrate the NaCl wrapper with the Databridges library. After initialize you can use the wrapper library to encrypt and decrypt the data when publishing and receiving events.
// Initialize both databridges-sio-client-lib and databridges-nacl-wrapper
const dBridges = require('databridges-sio-client-lib');
const dbNaClWrapper = require('databridges-nacl-wrapper');
const dbridge = new dBridges();
const secretData = new dbNaClWrapper();
secretData.secret = "Your32 char secret.";
// .... Your databridges code comes here.
// On Subscription success event.
subscribeChannel.bind("dbridges:subscribe.success", (payload, metadata) => {
console.log('Channel subscribe => bind', metadata.eventname, payload, JSON.stringify(metadata));
try {
// Encrypt data to publish.
const encData = secretData.write("Your Data..");
subscribeChannel.publish("eventName", encData, "1")
} catch (err) {
console.log('Error:', err.source, err.code, err.message);
}
});
// On payload Received event.
subscribeChannel.bind("eventName", (payload, metadata) => {
console.log('eventName=> bind', metadata.eventname, payload, JSON.stringify(metadata));
try {
// Decrypt data received in the event.
const decData = secretData.read(payload);
console.log('Decrypted:', decData);
} catch (err) {
console.log('Error:', err.source, err.code, err.message);
}
});- Change log: Changes in the recent versions
DataBridges NaCl Wrapper is released under the MIT license.
Copyright 2022 Optomate Technologies Private Limited.
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