A simple wrapper over localStorage/sessionStorage using CryptoSubtle

The code is based on MDN https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto

How to use

import myCrypto from '@plamikcho/pbCrypto';

const encryptedStorage = getEncryptedStorage(localStorage, 'mysupersecret', 'salt');

encryptedStorage.setItem('test', 'Some text to store encrypted')
  .then(() => encryptedStorage.getItem('test'))
  .then(item => console.log(item));
  .catch(error => console.log(error));

If you don't need the storage, here is it:

const cryptoWrapper = getPbCrypto('secret', 'pepper');
const iv = cryptoWrapper.getIv();
cryptoWrapper.encrypt('ДобАр ден,аз съм вашта леля!', iv)
  .then(encrypted => cryptoWrapper.decrypt(encrypted, iv))
  .then((decrypted) => console.log(decrypted));

Supported browsers at the moment: Firefox and Chrome. MDN says that Edge also should work but it doesn't (at least I was not able to find the proper input params). Any help will be appreciated.

Changelog

2.2.1

• Bowser removed, browser detection is changed to feature detection
• isBrowserSupported method is restored as a promise. This method is used internally in encrypted storage

2.1.4

• Typings cleaned from unused import

2.1.3

• Babel configuration fixed in /dist folder
• Example added for encrypt/decrypt
• Typings fixes

2.1.2

• Babel configuration fixed

2.1.1

• Example fixed (broken on previous version)

2.1.0

• Babel polyfill removed (MS browsers support)

2.0.0

• Bowser is removed from the library. Now it is 6k minified.
• The issue with large strings is partially solved, at least for the sizes supported by localStorage (=< 10 MB)