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    Tanker client-side encryption SDK for JavaScript
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    Encryption SDKs for JavaScript

    Overview · Core · Identity · Browser support · Other platforms · Contributing · License

    Overview

    Tanker is an open-source solution to protect sensitive data in any application, with a simple end-user experience and good performance. No cryptographic skills are required to implement it.

    Tanker Core

    Tanker Core is the foundation, it provides powerful end-to-end encryption of any type of data, textual or binary. Tanker Core handles multi-device, identity verification, user groups and pre-registration sharing.

    Package Version
    @tanker/client-browser browser_npm-badge
    @tanker/client-node nodejs_npm-badge

    Detailed changes for each release are documented in the Release Notes.

    Tanker Core usage example The Core SDK takes care of all the difficult cryptography in the background, leaving you with simple high-level APIs: javascript import { Tanker } from '@tanker/client-browser'; // Initialize the isolated Tanker environment within your application const tanker = new Tanker({ appId: '...' }); // Start a session with the user's cryptographic identity await tanker.start(aliceIdentity); // Encrypt data and share it with separate recipients or groups const encryptedMessage = await tanker.encrypt( "It's a secret to everybody", { shareWithUsers: [bobIdentity] } ); // Decrypt data (or throw if not a legitimate recipient) const message = await tanker.decrypt(encryptedMessage); The Core SDK automatically handles complex key exchanges, cryptographic operations, and identity verification for you.

    For more details and advanced examples, please refer to:

    Or fiddle with the quickstart examples to see the Tanker SDKs integrated in a collection of demo apps.

    Identity management

    End-to-end encryption requires that all users have cryptographic identities. The following packages help to handle them:

    Tanker Identity is a server side package to link Tanker identities with your users in your application backend. It is available in multiple languages. This repository only contains the Javascript version.

    Package Version
    @tanker/identity identity_npm-badge

    Browser support

    The Tanker JavaScript SDKs support the following platforms:

    • Chrome, Firefox, Safari, Microsoft Edge, and Internet Explorer 11
    • Node.js 14+

    The Tanker JavaScript SDKs are constantly tested with all of the supported browsers via unit and functional tests.

    We use BrowserStack to automate testing on many browser & OS combinations.

    BrowserStack logo

    Other platforms

    Tanker is also available for your mobile applications: use our open-source iOS and Android SDKs.

    Contributing

    We welcome feedback, bug reports, and bug fixes in the form of pull requests.

    To build the JavaScript SDKs yourself, please follow the steps below.

    Prerequisites

    Install Yarn version 1.0 or greater.

    Use this command to check the Yarn version installed on your system:

    yarn -v
    

    Install dependencies

    Clone this repository:

    git clone https://github.com/TankerHQ/sdk-js.git
    

    Install dependencies:

    cd sdk-js && yarn
    

    Test and lint

    Our codebase uses the following ES6 features: async / await, import / export, and classes with typescript for type-checking and with eslint for linting.

    To check that the code is correct and to launch the tests in Node.js, use:

    yarn proof
    

    Submit your pull request

    Before submitting your pull request, please make sure that your changes pass the linters and that all the tests pass on your local machine.

    For non-trivial changes, we highly recommend including extra tests.

    When you're ready, submit your pull request, targeting the master branch of this repository.

    License

    The Tanker JavaScript SDK is licensed under the Apache License, version 2.0.

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