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secure-webstore
Advanced tools
Readme
This is a secure, promise-based keyval store that encrypts data stored in IndexedDB.
The symmetric encryption key is derived from the provided passphrase, and then stored in an encrypted form within the provided store name. The encryption key is only used in memory and never revealed.
The IndexedDB wrapper used internally is idb-keyval, while the cryptographic operations are handled by easy-web-crypto, a zero-dependency wrapper around the Webcrypto API available in modern browsers.
Huge thanks to @Jopie64 for Typescriptifying the source!
npm install --save secure-webstore
<script>
tagEither host dist/cjs/secure-webstore.js
yourself or use a CDN (e.g. jsDelivr) like this:
<script type="application/javascript" src="https://cdn.jsdelivr.net/npm/secure-webstore@1.3.4/dist/cjs/secure-webstore.js"></script>
You can then use window.SecureStore
to access the library.
The init step takes care of key derivation and setting up the encryption/decryption key.
const Store = require('secure-webstore').Store
const store = new Store('some-store-name', 'super-secure-passphrase')
store.init().then(() => {
// store is ready
})
store.set('hello', 'world')
Since this is IDB-backed, you can store anything structured-clonable (numbers, arrays, objects, dates, blobs etc).
All methods return promises:
store.set('hello', 'world')
.then(() => console.log('It worked!'))
.catch(err => console.log('It failed!', err))
// logs: "world"
const val = await store.get('hello')
// console.log(val) -> "world"
If there is no 'hello' key, then val
will be undefined
.
// logs: ["hello", "foo"]
keys().then(keys => console.log(keys))
store.del('hello')
store.clear()
Completely remove a database.
store.destroy()
Update the passphrase that is used for key derivation. The encryption key used for data will not be affected, just the key that protects it.
store.updatePassphrase(oldPass, newPass)
Export all (encrypted) key/vals as one JSON object.
const dump = await store.export()
// using the dump above
store.import(dump)
That's it!
FAQs
Secure IndexedDB store using encryption
We found that secure-webstore demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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